TY  - CONF
AU  - Novčić, Stefan
AU  - Vranešević, Diana
AU  - Parezanović, Aleksandra
AU  - Medarević, Ivana
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3166
AB  - In this paper, using a dynamic RC model for heat transfer in a room on the ground floor, 
the three-time constants of heat transfer that corresponds to the different parts of a 
weekend cottage on Kopaonik were determined. The model considered the heat 
accumulation and losses through the facade wall, floor and interior part of the room. The 
time constant of the wall is the characteristic time for establishing a stationary state of the 
temperature inside the wall during rapid changes in the external air temperature and it 
represents a measure of the thermal inertia of the wall. The model was validated by 
experimental measurements of air temperatures and wall surface temperatures. 
Measurements were carried out in situ continuously for 21 hours in real conditions in the 
winter period. Air temperature measurements were made with standalone data loggers. 
The paper presents the results of the measurements, the parameters and the electrical 
diagram of the RC model and the results comparing the measured temperatures with the 
same temperatures obtained by this model. Satisfactory agreements were obtained.
PB  - Faculty of civil engineering and architecture / University of Niš and Serbian academy of sciences and arts - branch in Niš
C3  - International conference Synergy of architecture and civil Engineering, Niš, 14-15 September, 2023
T1  - Experimental determination of dynamic parameters of heat passage through the facade wall of a weekend cottage on mountain Kopaonik, Serbia
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3166
ER  - 

@conference{
author = "Novčić, Stefan and Vranešević, Diana and Parezanović, Aleksandra and Medarević, Ivana and Gospavić, Radovan and Todorović, Goran",
year = "2023",
abstract = "In this paper, using a dynamic RC model for heat transfer in a room on the ground floor, 
the three-time constants of heat transfer that corresponds to the different parts of a 
weekend cottage on Kopaonik were determined. The model considered the heat 
accumulation and losses through the facade wall, floor and interior part of the room. The 
time constant of the wall is the characteristic time for establishing a stationary state of the 
temperature inside the wall during rapid changes in the external air temperature and it 
represents a measure of the thermal inertia of the wall. The model was validated by 
experimental measurements of air temperatures and wall surface temperatures. 
Measurements were carried out in situ continuously for 21 hours in real conditions in the 
winter period. Air temperature measurements were made with standalone data loggers. 
The paper presents the results of the measurements, the parameters and the electrical 
diagram of the RC model and the results comparing the measured temperatures with the 
same temperatures obtained by this model. Satisfactory agreements were obtained.",
publisher = "Faculty of civil engineering and architecture / University of Niš and Serbian academy of sciences and arts - branch in Niš",
journal = "International conference Synergy of architecture and civil Engineering, Niš, 14-15 September, 2023",
title = "Experimental determination of dynamic parameters of heat passage through the facade wall of a weekend cottage on mountain Kopaonik, Serbia",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3166"
}

Novčić, S., Vranešević, D., Parezanović, A., Medarević, I., Gospavić, R.,& Todorović, G.. (2023). Experimental determination of dynamic parameters of heat passage through the facade wall of a weekend cottage on mountain Kopaonik, Serbia. in International conference Synergy of architecture and civil Engineering, Niš, 14-15 September, 2023
Faculty of civil engineering and architecture / University of Niš and Serbian academy of sciences and arts - branch in Niš..
https://hdl.handle.net/21.15107/rcub_grafar_3166

Novčić S, Vranešević D, Parezanović A, Medarević I, Gospavić R, Todorović G. Experimental determination of dynamic parameters of heat passage through the facade wall of a weekend cottage on mountain Kopaonik, Serbia. in International conference Synergy of architecture and civil Engineering, Niš, 14-15 September, 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3166 .

Novčić, Stefan, Vranešević, Diana, Parezanović, Aleksandra, Medarević, Ivana, Gospavić, Radovan, Todorović, Goran, "Experimental determination of dynamic parameters of heat passage through the facade wall of a weekend cottage on mountain Kopaonik, Serbia" in International conference Synergy of architecture and civil Engineering, Niš, 14-15 September, 2023 (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3166 .

TY  - BOOK
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3050
AB  - Анализиран је нестационарни транспорт топлоте у вишеслојним равним грађевинским зидовима коришћењем in-situ мерења и физичког моделовања у фреквентном и временском домену. За одређивање динамичких термичких параметара вишеслојних зидова коришћена је анализа у фреквентном домену и in-situ мерења температуре ваздуха са унутрашње и спољашње стране зида.
Дневне варијације температуре (фреквенција и амплитуда) су издвојене из мерних података коришћењем технике усредњавања и филтрирања. Добијени динамички параметри играју важну улогу при оцени летњег конфора и енергетске ефикасности грађевинских објеката. Такође је анализирана нестационарна расподела температурског поља и транспорта топлоте у вишеслојном
равном зиду коришћењем Грин-ових (Green) функција у временском домену. Аналитички изрази за просторну расподелу и временску варијацију температурског поља у динамичким условима су приказани у општем облику помоћу конволуционих интеграла. Приказани су нумерички резултати
за динамичке параметре зида, као и просторне расподеле и временске варијације температурског поља и густине термалног флукса унутар посматраног вишеслојног зида.
AB  - Summary
The unsteady heat conduction inside multi-layer planar building wall using in-situ measurement and physical modelling in frequent and time domain has been analyzed. The analysis in the frequent domain and in-situ measurements of inside and outside air temperatures are used to determine the dynamical thermal parameters of the wall. The daily temperature variations (frequency and amplitude) are extracted from the measurement data using the averaging and filtering techniques. These dynamical thermal parameters play important role in estimation of daily thermal comfort and building energy efficiency. The unsteady temperature and flux distribution inside the multi-layer wall has been analyzed using the Green functions in the time domain as well. The analytical expressions for spatial and temporal temperature distributions under unsteady conditions are given in the general form using convolution integrals. The
numerical results related to dynamical wall parameters, spatial and temporal temperature and flux distributions inside the wall are presented.
PB  - УНИВЕРЗИТЕТ У БЕОГРАДУ – ГРАЂЕВИНСКИ ФАКУЛТЕТ
PB  - За издавача: Проф. др Владан Кузмановић, декан Факултета
T1  - Fizičko modelovanje i in-sity merenja transporta toplote kroz višeslojne spoljašnje građevinske zidove
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3050
ER  - 

@book{
author = "Todorović, Goran and Gospavić, Radovan",
year = "2022",
abstract = "Анализиран је нестационарни транспорт топлоте у вишеслојним равним грађевинским зидовима коришћењем in-situ мерења и физичког моделовања у фреквентном и временском домену. За одређивање динамичких термичких параметара вишеслојних зидова коришћена је анализа у фреквентном домену и in-situ мерења температуре ваздуха са унутрашње и спољашње стране зида.
Дневне варијације температуре (фреквенција и амплитуда) су издвојене из мерних података коришћењем технике усредњавања и филтрирања. Добијени динамички параметри играју важну улогу при оцени летњег конфора и енергетске ефикасности грађевинских објеката. Такође је анализирана нестационарна расподела температурског поља и транспорта топлоте у вишеслојном
равном зиду коришћењем Грин-ових (Green) функција у временском домену. Аналитички изрази за просторну расподелу и временску варијацију температурског поља у динамичким условима су приказани у општем облику помоћу конволуционих интеграла. Приказани су нумерички резултати
за динамичке параметре зида, као и просторне расподеле и временске варијације температурског поља и густине термалног флукса унутар посматраног вишеслојног зида., Summary
The unsteady heat conduction inside multi-layer planar building wall using in-situ measurement and physical modelling in frequent and time domain has been analyzed. The analysis in the frequent domain and in-situ measurements of inside and outside air temperatures are used to determine the dynamical thermal parameters of the wall. The daily temperature variations (frequency and amplitude) are extracted from the measurement data using the averaging and filtering techniques. These dynamical thermal parameters play important role in estimation of daily thermal comfort and building energy efficiency. The unsteady temperature and flux distribution inside the multi-layer wall has been analyzed using the Green functions in the time domain as well. The analytical expressions for spatial and temporal temperature distributions under unsteady conditions are given in the general form using convolution integrals. The
numerical results related to dynamical wall parameters, spatial and temporal temperature and flux distributions inside the wall are presented.",
publisher = "УНИВЕРЗИТЕТ У БЕОГРАДУ – ГРАЂЕВИНСКИ ФАКУЛТЕТ, За издавача: Проф. др Владан Кузмановић, декан Факултета",
title = "Fizičko modelovanje i in-sity merenja transporta toplote kroz višeslojne spoljašnje građevinske zidove",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3050"
}

Todorović, G.,& Gospavić, R.. (2022). Fizičko modelovanje i in-sity merenja transporta toplote kroz višeslojne spoljašnje građevinske zidove. 
УНИВЕРЗИТЕТ У БЕОГРАДУ – ГРАЂЕВИНСКИ ФАКУЛТЕТ..
https://hdl.handle.net/21.15107/rcub_grafar_3050

Todorović G, Gospavić R. Fizičko modelovanje i in-sity merenja transporta toplote kroz višeslojne spoljašnje građevinske zidove. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3050 .

Todorović, Goran, Gospavić, Radovan, "Fizičko modelovanje i in-sity merenja transporta toplote kroz višeslojne spoljašnje građevinske zidove" (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3050 .

TY  - CONF
AU  - Mirković-Marjanović, Milica
AU  - Kijanović, Aleksandar
AU  - Ilić, Snežana
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3054
AB  - ABSTRACT
In this paper a comparative analysis of thermal behavior of six partition walls with different thicknesses were presented. The walls were dimensions 3000 mm x 3000 mm made from autoclaved aerated concrete blocks with dimensions 625 mm x 200 mm and thicknesses 50 mm, 75 mm, 100 mm, 120 mm, 150 mm and 250 mm. All walls were exposed to standard fire test according the standard SRPS EN 834-1, non- combustibility test according the standard SRPS EN 1182 and surface spread of flame test according to SRPS U.J1.060. All walls were tested to fire resistance in vertical furnace with a data acquisition system, according to standard fire test. Standard furnace for testing construction consist of four two step burners in liquid fuel type „Major P25 AB HS TL V.C.“, heating power of 296 kW manufactured by ECO FLAM. Two transmitters of differential pressure type 6321 manufactured by TESTO (Germany), with range
 +/- 100 Pa installed inside the furnace were used for pressure measurement. Inside the furnace the temperature on six places with thermocouple type K were measures. The measure ranges of thermocouple type K were -270 0 C to 1372 0 C. The temperatures on
unexposed fire side were measured in nine places with thermocouple type T with measure ranges -270 0 C to 400 0 C of according the national standard SRPS U.J1.090. The obtained temperature results depending of the time of reaching the critical temperature were presented for each wall thicknesses. The five identical cylindrical samples with high 50 mm and diameter 45 mm for non-combustibility test has been used. All samples have been tested in standard furnace for non-combustibility test. The
average temperature in furnace and specimens were presented. Surface spread of flame testing is carried out according to standard SRPS U.J1.060, if the coating material is based on organic or mixed materials. The samples for these test are with dimensions 900 x 230 mm.
C3  - Proceedings of the 19 th international symposium of MASE, April 2022.
T1  - The comparative analysis of thermal behaviour of a different thicknesses walls made from autoclaved aerated concrete blocks exposed to fire
EP  - 597
SP  - 591
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3054
ER  - 

@conference{
author = "Mirković-Marjanović, Milica and Kijanović, Aleksandar and Ilić, Snežana and Todorović, Goran and Gospavić, Radovan",
year = "2022",
abstract = "ABSTRACT
In this paper a comparative analysis of thermal behavior of six partition walls with different thicknesses were presented. The walls were dimensions 3000 mm x 3000 mm made from autoclaved aerated concrete blocks with dimensions 625 mm x 200 mm and thicknesses 50 mm, 75 mm, 100 mm, 120 mm, 150 mm and 250 mm. All walls were exposed to standard fire test according the standard SRPS EN 834-1, non- combustibility test according the standard SRPS EN 1182 and surface spread of flame test according to SRPS U.J1.060. All walls were tested to fire resistance in vertical furnace with a data acquisition system, according to standard fire test. Standard furnace for testing construction consist of four two step burners in liquid fuel type „Major P25 AB HS TL V.C.“, heating power of 296 kW manufactured by ECO FLAM. Two transmitters of differential pressure type 6321 manufactured by TESTO (Germany), with range
 +/- 100 Pa installed inside the furnace were used for pressure measurement. Inside the furnace the temperature on six places with thermocouple type K were measures. The measure ranges of thermocouple type K were -270 0 C to 1372 0 C. The temperatures on
unexposed fire side were measured in nine places with thermocouple type T with measure ranges -270 0 C to 400 0 C of according the national standard SRPS U.J1.090. The obtained temperature results depending of the time of reaching the critical temperature were presented for each wall thicknesses. The five identical cylindrical samples with high 50 mm and diameter 45 mm for non-combustibility test has been used. All samples have been tested in standard furnace for non-combustibility test. The
average temperature in furnace and specimens were presented. Surface spread of flame testing is carried out according to standard SRPS U.J1.060, if the coating material is based on organic or mixed materials. The samples for these test are with dimensions 900 x 230 mm.",
journal = "Proceedings of the 19 th international symposium of MASE, April 2022.",
title = "The comparative analysis of thermal behaviour of a different thicknesses walls made from autoclaved aerated concrete blocks exposed to fire",
pages = "597-591",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3054"
}

Mirković-Marjanović, M., Kijanović, A., Ilić, S., Todorović, G.,& Gospavić, R.. (2022). The comparative analysis of thermal behaviour of a different thicknesses walls made from autoclaved aerated concrete blocks exposed to fire. in Proceedings of the 19 th international symposium of MASE, April 2022., 591-597.
https://hdl.handle.net/21.15107/rcub_grafar_3054

Mirković-Marjanović M, Kijanović A, Ilić S, Todorović G, Gospavić R. The comparative analysis of thermal behaviour of a different thicknesses walls made from autoclaved aerated concrete blocks exposed to fire. in Proceedings of the 19 th international symposium of MASE, April 2022.. 2022;:591-597.
https://hdl.handle.net/21.15107/rcub_grafar_3054 .

Mirković-Marjanović, Milica, Kijanović, Aleksandar, Ilić, Snežana, Todorović, Goran, Gospavić, Radovan, "The comparative analysis of thermal behaviour of a different thicknesses walls made from autoclaved aerated concrete blocks exposed to fire" in Proceedings of the 19 th international symposium of MASE, April 2022. (2022):591-597,
https://hdl.handle.net/21.15107/rcub_grafar_3054 .

TY  - CONF
AU  - Mirković-Marjanović, Milica
AU  - Ilić, Snežana
AU  - Kijanović, Aleksandar
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3053
AB  - Abstract
The growing expansion of construction and import of new, as well as existing materials from around the world, has led to a large number of tests materials and elements of constructions in the Republic of Serbia. Most of these materials and building constructions have test certificates obtained in foreign laboratories, which mostly refer to European standards. The currently valid Rulebook on mandatory attestation of elements of standard building structures for fire resistance and on working conditions that must be met by organizations of associated labour authorized to attest these products from 1990 requires testing of each product, or structural element, according to the domestic SRPS standards. The condition for accessing the European Union requires the harmonization of regulations related to the testing of construction products. Therefore, the IMS Institute, the Ministry of Interior - Sector for Emergency Situations and the
Ministry of Construction of the Republic of Serbia have written a new draft Rulebook on
Technical Requirements for construction products for which performance characteristics are
important: reaction to fire, fire resistance and external fire performance. The plan is to publish
the Rulebook, as valid, at the beginning of 2022, with a transitional period for implementation
of two years. The paper presents a overview of the new Rulebook.
C3  - The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica
T1  - Overview of the new rulebook on testing fire resistance, external fire performances and reaction to fire in the Republic of Serbia
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3053
ER  - 

@conference{
author = "Mirković-Marjanović, Milica and Ilić, Snežana and Kijanović, Aleksandar and Todorović, Goran and Gospavić, Radovan",
year = "2022",
abstract = "Abstract
The growing expansion of construction and import of new, as well as existing materials from around the world, has led to a large number of tests materials and elements of constructions in the Republic of Serbia. Most of these materials and building constructions have test certificates obtained in foreign laboratories, which mostly refer to European standards. The currently valid Rulebook on mandatory attestation of elements of standard building structures for fire resistance and on working conditions that must be met by organizations of associated labour authorized to attest these products from 1990 requires testing of each product, or structural element, according to the domestic SRPS standards. The condition for accessing the European Union requires the harmonization of regulations related to the testing of construction products. Therefore, the IMS Institute, the Ministry of Interior - Sector for Emergency Situations and the
Ministry of Construction of the Republic of Serbia have written a new draft Rulebook on
Technical Requirements for construction products for which performance characteristics are
important: reaction to fire, fire resistance and external fire performance. The plan is to publish
the Rulebook, as valid, at the beginning of 2022, with a transitional period for implementation
of two years. The paper presents a overview of the new Rulebook.",
journal = "The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica",
title = "Overview of the new rulebook on testing fire resistance, external fire performances and reaction to fire in the Republic of Serbia",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3053"
}

Mirković-Marjanović, M., Ilić, S., Kijanović, A., Todorović, G.,& Gospavić, R.. (2022). Overview of the new rulebook on testing fire resistance, external fire performances and reaction to fire in the Republic of Serbia. in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica.
https://hdl.handle.net/21.15107/rcub_grafar_3053

Mirković-Marjanović M, Ilić S, Kijanović A, Todorović G, Gospavić R. Overview of the new rulebook on testing fire resistance, external fire performances and reaction to fire in the Republic of Serbia. in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3053 .

Mirković-Marjanović, Milica, Ilić, Snežana, Kijanović, Aleksandar, Todorović, Goran, Gospavić, Radovan, "Overview of the new rulebook on testing fire resistance, external fire performances and reaction to fire in the Republic of Serbia" in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3053 .

TY  - CONF
AU  - Mirković-Marjanović, Milica
AU  - Kijanović, Aleksandar
AU  - Ilić, Snežana
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3055
AB  - ABSTRACT
In this paper solution of a non-stationary one dimensional (1D) heat conduction problem has been presented. The finite difference method, i.e. by applying energy balance has been used. The finite difference method has been applied and the partial differential equation of heat conduction has been reduced to an algebraic form. This procedure is also called discretization problem. By solving the system of algebraic equations, temperatures at discrete points - network nodes were obtained. Additional discretization was performed in non-stationary processes over time. Numerical 1D non- stationary calculation was performed on six walls of different thickness made of aerated concrete 50 mm, 75 mm, 100 mm, 120 mm, 150 mm and 250 mm thick are exposed to the developed fire. The developed fire represents the logarithmic dependence of the temperature as a function of time according to the standard SRPS EN 834-1. The period of wall heating was analyzed, i.e. period until the moment when the temperature rise is observed on the non-exposed side of the wall. The paper compares the achieved experimental results with the obtained numerical results.
C3  - Proceedings of the 19 th international symposium of MASE, April 2022.
T1  - Experimental and numerical analysis of a walls made from aerated concrete blocks exposed to fire
EP  - 590
SP  - 583
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3055
ER  - 

@conference{
author = "Mirković-Marjanović, Milica and Kijanović, Aleksandar and Ilić, Snežana and Todorović, Goran and Gospavić, Radovan",
year = "2022",
abstract = "ABSTRACT
In this paper solution of a non-stationary one dimensional (1D) heat conduction problem has been presented. The finite difference method, i.e. by applying energy balance has been used. The finite difference method has been applied and the partial differential equation of heat conduction has been reduced to an algebraic form. This procedure is also called discretization problem. By solving the system of algebraic equations, temperatures at discrete points - network nodes were obtained. Additional discretization was performed in non-stationary processes over time. Numerical 1D non- stationary calculation was performed on six walls of different thickness made of aerated concrete 50 mm, 75 mm, 100 mm, 120 mm, 150 mm and 250 mm thick are exposed to the developed fire. The developed fire represents the logarithmic dependence of the temperature as a function of time according to the standard SRPS EN 834-1. The period of wall heating was analyzed, i.e. period until the moment when the temperature rise is observed on the non-exposed side of the wall. The paper compares the achieved experimental results with the obtained numerical results.",
journal = "Proceedings of the 19 th international symposium of MASE, April 2022.",
title = "Experimental and numerical analysis of a walls made from aerated concrete blocks exposed to fire",
pages = "590-583",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3055"
}

Mirković-Marjanović, M., Kijanović, A., Ilić, S., Todorović, G.,& Gospavić, R.. (2022). Experimental and numerical analysis of a walls made from aerated concrete blocks exposed to fire. in Proceedings of the 19 th international symposium of MASE, April 2022., 583-590.
https://hdl.handle.net/21.15107/rcub_grafar_3055

Mirković-Marjanović M, Kijanović A, Ilić S, Todorović G, Gospavić R. Experimental and numerical analysis of a walls made from aerated concrete blocks exposed to fire. in Proceedings of the 19 th international symposium of MASE, April 2022.. 2022;:583-590.
https://hdl.handle.net/21.15107/rcub_grafar_3055 .

Mirković-Marjanović, Milica, Kijanović, Aleksandar, Ilić, Snežana, Todorović, Goran, Gospavić, Radovan, "Experimental and numerical analysis of a walls made from aerated concrete blocks exposed to fire" in Proceedings of the 19 th international symposium of MASE, April 2022. (2022):583-590,
https://hdl.handle.net/21.15107/rcub_grafar_3055 .

TY  - CONF
AU  - Mirković-Marjanović, Milica
AU  - Ilić, Snežana
AU  - Kijanović, Aleksandar
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3052
AB  - Abstract
Testing the clay hollow-brick masonry non-load-bearing wall helps us to understand the
behaviour of this type of wall during a fire. It is important to know the fire resistance of hollow brick walls so that we can prevent the fire from spreading to other rooms. In this paper, the experimental analysis of fire resistance of non-load-bearing wall with dimensions 3000 mm x 3000 mm thickness 200 mm were presented. The wall was made from clay hollow-brick masonry blocks with dimensions 500 mm x 200 mm x 249 mm (L x D x H) with mortar on both side of wall of thickness 15 mm. The wall was exposed to a standard fire test according to SRPS EN 1363-1:2014. The temperatures on the unexposed side of the wall were measured in thirteen positions with thermocouples (K – type) according to the national standard SRPS EN 1364-1: 2014, and at the junction between mortar and clay hollow-brick. Deflection of the wall in five places was measured also. Obtained results depending on the time of reaching the critical temperature during the fire test were presented.
C3  - The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica
T1  - Experimental analysis of fire resistance of clay hollow-brick masonry non-load bearing wall
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3052
ER  - 

@conference{
author = "Mirković-Marjanović, Milica and Ilić, Snežana and Kijanović, Aleksandar and Todorović, Goran and Gospavić, Radovan",
year = "2022",
abstract = "Abstract
Testing the clay hollow-brick masonry non-load-bearing wall helps us to understand the
behaviour of this type of wall during a fire. It is important to know the fire resistance of hollow brick walls so that we can prevent the fire from spreading to other rooms. In this paper, the experimental analysis of fire resistance of non-load-bearing wall with dimensions 3000 mm x 3000 mm thickness 200 mm were presented. The wall was made from clay hollow-brick masonry blocks with dimensions 500 mm x 200 mm x 249 mm (L x D x H) with mortar on both side of wall of thickness 15 mm. The wall was exposed to a standard fire test according to SRPS EN 1363-1:2014. The temperatures on the unexposed side of the wall were measured in thirteen positions with thermocouples (K – type) according to the national standard SRPS EN 1364-1: 2014, and at the junction between mortar and clay hollow-brick. Deflection of the wall in five places was measured also. Obtained results depending on the time of reaching the critical temperature during the fire test were presented.",
journal = "The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica",
title = "Experimental analysis of fire resistance of clay hollow-brick masonry non-load bearing wall",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3052"
}

Mirković-Marjanović, M., Ilić, S., Kijanović, A., Todorović, G.,& Gospavić, R.. (2022). Experimental analysis of fire resistance of clay hollow-brick masonry non-load bearing wall. in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica.
https://hdl.handle.net/21.15107/rcub_grafar_3052

Mirković-Marjanović M, Ilić S, Kijanović A, Todorović G, Gospavić R. Experimental analysis of fire resistance of clay hollow-brick masonry non-load bearing wall. in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3052 .

Mirković-Marjanović, Milica, Ilić, Snežana, Kijanović, Aleksandar, Todorović, Goran, Gospavić, Radovan, "Experimental analysis of fire resistance of clay hollow-brick masonry non-load bearing wall" in The 8 th International Conference "Civil Engineering – Science and Practice" GNP 2022 – Kolašin, Montenegro, March 8-12, 2022, Zbornik radova, Građevinski fakultet Podgorica (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3052 .

TY  - CONF
AU  - Božović, Nikola
AU  - Krstić, Marija
AU  - Todorović, Goran
AU  - Gospavić, Radovan
AU  - Mirković-Marjanović, Milica
AU  - Ilić, Snežana
AU  - Kijanović, Aleksandar
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3051
AB  - The thermal conductivity of a material is the parameter that is most reliably
determined experimentally. The problem of determining the thermal conductivity
in the soil is greater because the soil is heterogeneous, so for the same soil this
parameter may be different depending on the their ohysical characteristics.
Therefore, it is necessary to adopt an appropiate model for describing the thermal
conductivity of the soil for a particular location after the necessary tests are
performed. This paper is based on experimental measurements of soil thermal
conductivity as a function of moisture content in the area of the ,Nikola Tesla
Airport construction site in Surčin and the adoption of one of the existing
theoretical models that would satisfactorily describe changes in thermal
consuctivity. Based on the obtained results of experimental reasearche, a two-
parameter fitting of the measured values of thermal conductivity of the soil was
performed in Cote-Konrad model, which proves to be reliable and the simplest to
describe the thermal properties of loess in the area of Belgrade.
C3  - 5th Symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 2022.
T1  - Measurement and modeling of thermal conductivity of loess  at the location of the Airport Nikola Tesla in Surcin
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3051
ER  - 

@conference{
author = "Božović, Nikola and Krstić, Marija and Todorović, Goran and Gospavić, Radovan and Mirković-Marjanović, Milica and Ilić, Snežana and Kijanović, Aleksandar",
year = "2022",
abstract = "The thermal conductivity of a material is the parameter that is most reliably
determined experimentally. The problem of determining the thermal conductivity
in the soil is greater because the soil is heterogeneous, so for the same soil this
parameter may be different depending on the their ohysical characteristics.
Therefore, it is necessary to adopt an appropiate model for describing the thermal
conductivity of the soil for a particular location after the necessary tests are
performed. This paper is based on experimental measurements of soil thermal
conductivity as a function of moisture content in the area of the ,Nikola Tesla
Airport construction site in Surčin and the adoption of one of the existing
theoretical models that would satisfactorily describe changes in thermal
consuctivity. Based on the obtained results of experimental reasearche, a two-
parameter fitting of the measured values of thermal conductivity of the soil was
performed in Cote-Konrad model, which proves to be reliable and the simplest to
describe the thermal properties of loess in the area of Belgrade.",
journal = "5th Symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 2022.",
title = "Measurement and modeling of thermal conductivity of loess  at the location of the Airport Nikola Tesla in Surcin",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3051"
}

Božović, N., Krstić, M., Todorović, G., Gospavić, R., Mirković-Marjanović, M., Ilić, S.,& Kijanović, A.. (2022). Measurement and modeling of thermal conductivity of loess  at the location of the Airport Nikola Tesla in Surcin. in 5th Symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 2022..
https://hdl.handle.net/21.15107/rcub_grafar_3051

Božović N, Krstić M, Todorović G, Gospavić R, Mirković-Marjanović M, Ilić S, Kijanović A. Measurement and modeling of thermal conductivity of loess  at the location of the Airport Nikola Tesla in Surcin. in 5th Symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 2022.. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_3051 .

Božović, Nikola, Krstić, Marija, Todorović, Goran, Gospavić, Radovan, Mirković-Marjanović, Milica, Ilić, Snežana, Kijanović, Aleksandar, "Measurement and modeling of thermal conductivity of loess  at the location of the Airport Nikola Tesla in Surcin" in 5th Symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 2022. (2022),
https://hdl.handle.net/21.15107/rcub_grafar_3051 .

TY  - JOUR
AU  - Mirković, Uroš B.
AU  - Kuzmanović, Vladan
AU  - Todorović, Goran
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3011
AB  - Results of the conducted research aiming to demonstrate the methodology of optimization of dam monolith length (distance between contraction joints), through monitoring the thermal tensile stresses during construction and service life of a concrete gravity dam that is built using the block method, are presented in this paper. A 3D space–time numerical model for phased thermal stress analysis is employed in a large concrete gravity dam case study. For the adopted block dimensions, schedule, and dynamics of construction and material parameters, the thermal stress analysis is conducted, taking into account the following: thermal physical properties of the material, the cement hydration process, heat exchange with the external environment and the reservoir, and self-weight of the structure. The main advantage of the proposed methodology is the possibility of controlling the cracks resulting from thermal tensile stresses in the monolith of a concrete gravity dam, by optimizing the monolith’s length to minimize the zones in which the tensile capacity of concrete is exceeded. The results obtained from the temperature field analysis show that the maximum temperature increase in the dam’s body results from the cement hydration process in combination with summer air temperatures in the construction phase. The aforementioned factors account for the increase in temperature of up to 45.0 ◦C, while during winter cooling of the structure occurs due to lower temperatures, especially in the surface zones. The results of the stress field analysis show that the extreme values of thermal tensile stresses are present in the process of a sudden or gradual cooling of the concrete when shrinkage occurs. Finally, it is shown that the reduction of the monolith length by 5.0 m (from 20.0 m to 15.0 m) results in a decrease in the extreme thermal tensile stress values by an average of 0.70 MPa (up to 12.0%) in winter and an average of 1.10 MPa (up to 20.0%) in summer; while for the entirety of the analyzed time period, results in a decrease in the extreme thermal tensile stress values by an average of 16.0% (0.93 MPa).
PB  - MDPI
T2  - Applied Sciences
T1  - Long-Term Thermal Stress Analysis and Optimization of Contraction Joint Distance of Concrete Gravity Dams
SP  - 8163
VL  - 12
DO  - 10.3390/app12168163
ER  - 

@article{
author = "Mirković, Uroš B. and Kuzmanović, Vladan and Todorović, Goran",
year = "2022",
abstract = "Results of the conducted research aiming to demonstrate the methodology of optimization of dam monolith length (distance between contraction joints), through monitoring the thermal tensile stresses during construction and service life of a concrete gravity dam that is built using the block method, are presented in this paper. A 3D space–time numerical model for phased thermal stress analysis is employed in a large concrete gravity dam case study. For the adopted block dimensions, schedule, and dynamics of construction and material parameters, the thermal stress analysis is conducted, taking into account the following: thermal physical properties of the material, the cement hydration process, heat exchange with the external environment and the reservoir, and self-weight of the structure. The main advantage of the proposed methodology is the possibility of controlling the cracks resulting from thermal tensile stresses in the monolith of a concrete gravity dam, by optimizing the monolith’s length to minimize the zones in which the tensile capacity of concrete is exceeded. The results obtained from the temperature field analysis show that the maximum temperature increase in the dam’s body results from the cement hydration process in combination with summer air temperatures in the construction phase. The aforementioned factors account for the increase in temperature of up to 45.0 ◦C, while during winter cooling of the structure occurs due to lower temperatures, especially in the surface zones. The results of the stress field analysis show that the extreme values of thermal tensile stresses are present in the process of a sudden or gradual cooling of the concrete when shrinkage occurs. Finally, it is shown that the reduction of the monolith length by 5.0 m (from 20.0 m to 15.0 m) results in a decrease in the extreme thermal tensile stress values by an average of 0.70 MPa (up to 12.0%) in winter and an average of 1.10 MPa (up to 20.0%) in summer; while for the entirety of the analyzed time period, results in a decrease in the extreme thermal tensile stress values by an average of 16.0% (0.93 MPa).",
publisher = "MDPI",
journal = "Applied Sciences",
title = "Long-Term Thermal Stress Analysis and Optimization of Contraction Joint Distance of Concrete Gravity Dams",
pages = "8163",
volume = "12",
doi = "10.3390/app12168163"
}

Mirković, U. B., Kuzmanović, V.,& Todorović, G.. (2022). Long-Term Thermal Stress Analysis and Optimization of Contraction Joint Distance of Concrete Gravity Dams. in Applied Sciences
MDPI., 12, 8163.
https://doi.org/10.3390/app12168163

Mirković UB, Kuzmanović V, Todorović G. Long-Term Thermal Stress Analysis and Optimization of Contraction Joint Distance of Concrete Gravity Dams. in Applied Sciences. 2022;12:8163.
doi:10.3390/app12168163 .

Mirković, Uroš B., Kuzmanović, Vladan, Todorović, Goran, "Long-Term Thermal Stress Analysis and Optimization of Contraction Joint Distance of Concrete Gravity Dams" in Applied Sciences, 12 (2022):8163,
https://doi.org/10.3390/app12168163 . .

TY  - JOUR
AU  - Mirković, Nikola
AU  - Brajović, Ljiljana
AU  - Popović, Zdenka
AU  - Todorović, Goran
AU  - Lazarević, Luka
AU  - Petrović, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2312
AB  - The main aim of conducted research is determination of temperature stresses due to the uneven temperature
distribution in CWR. This paper presents a methodology for determination of temperature stresses
in CWR based on (1) measurement system developed by the authors for measurement of rail surface temperatures,
and (2) coupled transient thermal-stress analysis for simulation of rail temperature field and
corresponding stresses. The main advantages of the proposed methodology are high sensitivity to the
small temperature variations, taking into account the effect of thermal inertia, as well as measurement
of single input parameter - rail surface temperature. The obtained experimental results showed lower rail
temperatures in sleeper zones and rail foot along CWR, which emphasize the effect of heat transfer
between rail and sleeper, as well as rail foot and ballast. These effects of heat transfer directly influence
the decrease of temperature stresses in the mentioned zones of CWR. The maximum values of simulated
temperature stresses are up to 16% less in the centre of gravity of railhead, up to 9.8% less in the centre of
gravity of rail foot, and up to 0.2% less in the centre of gravity of rail web, compared to the common engineering
calculation. In addition, the maximum value of simulated temperature force, based on temperature
stresses in the rail cross-section, was up to 5.3% less than the value obtained in the common
engineering calculation.
PB  - Elsevier
T2  - Construction and Building Materials
T1  - Determination of temperature stresses in CWR based on measured rail surface temperatures
IS  - 122713
VL  - 284
DO  - 10.1016/j.conbuildmat.2021.122713
ER  - 

@article{
author = "Mirković, Nikola and Brajović, Ljiljana and Popović, Zdenka and Todorović, Goran and Lazarević, Luka and Petrović, Miloš",
year = "2021",
abstract = "The main aim of conducted research is determination of temperature stresses due to the uneven temperature
distribution in CWR. This paper presents a methodology for determination of temperature stresses
in CWR based on (1) measurement system developed by the authors for measurement of rail surface temperatures,
and (2) coupled transient thermal-stress analysis for simulation of rail temperature field and
corresponding stresses. The main advantages of the proposed methodology are high sensitivity to the
small temperature variations, taking into account the effect of thermal inertia, as well as measurement
of single input parameter - rail surface temperature. The obtained experimental results showed lower rail
temperatures in sleeper zones and rail foot along CWR, which emphasize the effect of heat transfer
between rail and sleeper, as well as rail foot and ballast. These effects of heat transfer directly influence
the decrease of temperature stresses in the mentioned zones of CWR. The maximum values of simulated
temperature stresses are up to 16% less in the centre of gravity of railhead, up to 9.8% less in the centre of
gravity of rail foot, and up to 0.2% less in the centre of gravity of rail web, compared to the common engineering
calculation. In addition, the maximum value of simulated temperature force, based on temperature
stresses in the rail cross-section, was up to 5.3% less than the value obtained in the common
engineering calculation.",
publisher = "Elsevier",
journal = "Construction and Building Materials",
title = "Determination of temperature stresses in CWR based on measured rail surface temperatures",
number = "122713",
volume = "284",
doi = "10.1016/j.conbuildmat.2021.122713"
}

Mirković, N., Brajović, L., Popović, Z., Todorović, G., Lazarević, L.,& Petrović, M.. (2021). Determination of temperature stresses in CWR based on measured rail surface temperatures. in Construction and Building Materials
Elsevier., 284(122713).
https://doi.org/10.1016/j.conbuildmat.2021.122713

Mirković N, Brajović L, Popović Z, Todorović G, Lazarević L, Petrović M. Determination of temperature stresses in CWR based on measured rail surface temperatures. in Construction and Building Materials. 2021;284(122713).
doi:10.1016/j.conbuildmat.2021.122713 .

Mirković, Nikola, Brajović, Ljiljana, Popović, Zdenka, Todorović, Goran, Lazarević, Luka, Petrović, Miloš, "Determination of temperature stresses in CWR based on measured rail surface temperatures" in Construction and Building Materials, 284, no. 122713 (2021),
https://doi.org/10.1016/j.conbuildmat.2021.122713 . .

TY  - CONF
AU  - Mirković, Uroš
AU  - Kuzmanović, Vladan
AU  - Todorović, Goran
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3056
AB  - Rezime:
Termičko ponašanje gravitacionih betonskih brana presudno zavisi od početnih i graničnih uslova, karakteristika mešavine i dimenzija blokova. U radu je prikazan prostorni numerički model za faznu tеrmičku analizu visoke gravitacionе bеtonskе branе. Za usvojеnе dimеnzijе blokova, rеdoslеd bеtoniranja i dinamiku građеnja određivano je tеmpеraturno poljе, uzimajući u obzir toplotu hidratacije betona i sadеjstvujuću stеnsku masu. Na osnovu dobijenih rezultata, dati su zaključci i preporuke za proračun temperaturnog polja kod gravitacionih betonskih brana.
AB  - Summary:
The thermal behavior of concrete gravity dams crucially depends on the initial and boundary conditions, the characteristics of the mixture and the dimensions of the blocks. This paper presents numerical model for transient thermal analysis of a high concrete gravity dam. The temperature field was determined for the predefined dimensions of the blocks and placement schedule, taking into account hydration heat and the surrounding rock mass. Based on the obtained results, conclusions and recommendations for concrete gravity dams thermal analysis are given.
C3  - Zbornik radova sa Simpozijuma DGKS, Aranđelovac, 2020.
T1  - Termička analiza gravitacione betonske brane u fazi izgradnje i eksploatacije
EP  - 425
SP  - 416
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3056
ER  - 

@conference{
author = "Mirković, Uroš and Kuzmanović, Vladan and Todorović, Goran",
year = "2021",
abstract = "Rezime:
Termičko ponašanje gravitacionih betonskih brana presudno zavisi od početnih i graničnih uslova, karakteristika mešavine i dimenzija blokova. U radu je prikazan prostorni numerički model za faznu tеrmičku analizu visoke gravitacionе bеtonskе branе. Za usvojеnе dimеnzijе blokova, rеdoslеd bеtoniranja i dinamiku građеnja određivano je tеmpеraturno poljе, uzimajući u obzir toplotu hidratacije betona i sadеjstvujuću stеnsku masu. Na osnovu dobijenih rezultata, dati su zaključci i preporuke za proračun temperaturnog polja kod gravitacionih betonskih brana., Summary:
The thermal behavior of concrete gravity dams crucially depends on the initial and boundary conditions, the characteristics of the mixture and the dimensions of the blocks. This paper presents numerical model for transient thermal analysis of a high concrete gravity dam. The temperature field was determined for the predefined dimensions of the blocks and placement schedule, taking into account hydration heat and the surrounding rock mass. Based on the obtained results, conclusions and recommendations for concrete gravity dams thermal analysis are given.",
journal = "Zbornik radova sa Simpozijuma DGKS, Aranđelovac, 2020.",
title = "Termička analiza gravitacione betonske brane u fazi izgradnje i eksploatacije",
pages = "425-416",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3056"
}

Mirković, U., Kuzmanović, V.,& Todorović, G.. (2021). Termička analiza gravitacione betonske brane u fazi izgradnje i eksploatacije. in Zbornik radova sa Simpozijuma DGKS, Aranđelovac, 2020., 416-425.
https://hdl.handle.net/21.15107/rcub_grafar_3056

Mirković U, Kuzmanović V, Todorović G. Termička analiza gravitacione betonske brane u fazi izgradnje i eksploatacije. in Zbornik radova sa Simpozijuma DGKS, Aranđelovac, 2020.. 2021;:416-425.
https://hdl.handle.net/21.15107/rcub_grafar_3056 .

Mirković, Uroš, Kuzmanović, Vladan, Todorović, Goran, "Termička analiza gravitacione betonske brane u fazi izgradnje i eksploatacije" in Zbornik radova sa Simpozijuma DGKS, Aranđelovac, 2020. (2021):416-425,
https://hdl.handle.net/21.15107/rcub_grafar_3056 .

TY  - CONF
AU  - Petojević, Zorana
AU  - Todorović, Goran
AU  - Gospavić, Radovan
AU  - Ivanišević, Nenad
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2980
AB  - Within this paper, a multi-criteria decision-making model for evaluating the energy efficiency of building construction measures for new or existing buildings will be presented. The proposed model observes the optimization process simultaneously through the four most important aspects of energy efficiency: economic aspect, energy consumption, environmental impact and indoor comfort, taking into account factors that may occur in the building environment during its operation, such as inflation and currency depreciation/appreciation. The model introduces dynamic thermal parameters of the wall that reflect a thermal accumulation of the building envelope and its ability to provide thermal comfort in time-varying atmospheric conditions in the building environment.
C3  - Proceedings of International Scientific Conference Energy Efficiency and the Fourth Industrial Revolution
T1  - Multi-Objective Optimization Model for The Selection of Measures for Energy Efficient Retrofitting of Building Envelopes
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2980
ER  - 

@conference{
author = "Petojević, Zorana and Todorović, Goran and Gospavić, Radovan and Ivanišević, Nenad",
year = "2021",
abstract = "Within this paper, a multi-criteria decision-making model for evaluating the energy efficiency of building construction measures for new or existing buildings will be presented. The proposed model observes the optimization process simultaneously through the four most important aspects of energy efficiency: economic aspect, energy consumption, environmental impact and indoor comfort, taking into account factors that may occur in the building environment during its operation, such as inflation and currency depreciation/appreciation. The model introduces dynamic thermal parameters of the wall that reflect a thermal accumulation of the building envelope and its ability to provide thermal comfort in time-varying atmospheric conditions in the building environment.",
journal = "Proceedings of International Scientific Conference Energy Efficiency and the Fourth Industrial Revolution",
title = "Multi-Objective Optimization Model for The Selection of Measures for Energy Efficient Retrofitting of Building Envelopes",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2980"
}

Petojević, Z., Todorović, G., Gospavić, R.,& Ivanišević, N.. (2021). Multi-Objective Optimization Model for The Selection of Measures for Energy Efficient Retrofitting of Building Envelopes. in Proceedings of International Scientific Conference Energy Efficiency and the Fourth Industrial Revolution.
https://hdl.handle.net/21.15107/rcub_grafar_2980

Petojević Z, Todorović G, Gospavić R, Ivanišević N. Multi-Objective Optimization Model for The Selection of Measures for Energy Efficient Retrofitting of Building Envelopes. in Proceedings of International Scientific Conference Energy Efficiency and the Fourth Industrial Revolution. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2980 .

Petojević, Zorana, Todorović, Goran, Gospavić, Radovan, Ivanišević, Nenad, "Multi-Objective Optimization Model for The Selection of Measures for Energy Efficient Retrofitting of Building Envelopes" in Proceedings of International Scientific Conference Energy Efficiency and the Fourth Industrial Revolution (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2980 .

TY  - GEN
AU  - Gospavić, Radovan
AU  - Todorović, Goran
AU  - Mirković-Marjanović, Milica
AU  - Brajović, Ljiljana
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3058
PB  - Univerzitet u Beogradu, Građevinski Fakultet
T1  - Софтверско-хардверско решење за  одређивање термалних одзивних фактора  за вишеслојни равански зид коришћењем Грин-ових (Green) функција
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3058
ER  - 

@misc{
author = "Gospavić, Radovan and Todorović, Goran and Mirković-Marjanović, Milica and Brajović, Ljiljana",
year = "2020",
publisher = "Univerzitet u Beogradu, Građevinski Fakultet",
title = "Софтверско-хардверско решење за  одређивање термалних одзивних фактора  за вишеслојни равански зид коришћењем Грин-ових (Green) функција",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3058"
}

Gospavić, R., Todorović, G., Mirković-Marjanović, M.,& Brajović, L.. (2020). Софтверско-хардверско решење за  одређивање термалних одзивних фактора  за вишеслојни равански зид коришћењем Грин-ових (Green) функција. 
Univerzitet u Beogradu, Građevinski Fakultet..
https://hdl.handle.net/21.15107/rcub_grafar_3058

Gospavić R, Todorović G, Mirković-Marjanović M, Brajović L. Софтверско-хардверско решење за  одређивање термалних одзивних фактора  за вишеслојни равански зид коришћењем Грин-ових (Green) функција. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_3058 .

Gospavić, Radovan, Todorović, Goran, Mirković-Marjanović, Milica, Brajović, Ljiljana, "Софтверско-хардверско решење за  одређивање термалних одзивних фактора  за вишеслојни равански зид коришћењем Грин-ових (Green) функција" (2020),
https://hdl.handle.net/21.15107/rcub_grafar_3058 .

TY  - GEN
AU  - Todorović, Goran
AU  - Gospavić, Radovan
AU  - Petojević, Zorana
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3059
PB  - Univerzitet u Beogradu, Građevinski Fakultet
T1  - Софтверско-хардверско решење за естимацију термалног импулсног одзива вишеслојног равног зида
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3059
ER  - 

@misc{
author = "Todorović, Goran and Gospavić, Radovan and Petojević, Zorana",
year = "2020",
publisher = "Univerzitet u Beogradu, Građevinski Fakultet",
title = "Софтверско-хардверско решење за естимацију термалног импулсног одзива вишеслојног равног зида",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3059"
}

Todorović, G., Gospavić, R.,& Petojević, Z.. (2020). Софтверско-хардверско решење за естимацију термалног импулсног одзива вишеслојног равног зида. 
Univerzitet u Beogradu, Građevinski Fakultet..
https://hdl.handle.net/21.15107/rcub_grafar_3059

Todorović G, Gospavić R, Petojević Z. Софтверско-хардверско решење за естимацију термалног импулсног одзива вишеслојног равног зида. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_3059 .

Todorović, Goran, Gospavić, Radovan, Petojević, Zorana, "Софтверско-хардверско решење за естимацију термалног импулсног одзива вишеслојног равног зида" (2020),
https://hdl.handle.net/21.15107/rcub_grafar_3059 .

TY  - CONF
AU  - Mirković, Uroš
AU  - Ivanović, Jovana
AU  - Pavić, Maja
AU  - Radovanović, Slobodan
AU  - Mirković, Nikola
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2790
AB  - In this research paper, measurement data of air and water temperatures and 
water levels for "Bileca" reservoir for a period between 1967. and 2017. are presented. 
Based on the averaged measurement data values, an analytical expressions for amplitude 
of periodic temperature variation of "Bileca" reservoir are derived and an average annual 
temperature, as a function of the observed depth, is obtained, based on Bofang model. The 
obtained results allow thermal stress analysis, which represents an important factor for 
stability and safety monitoring of dams.
PB  - Građevinski fakultet Subotica
C3  - Zbornik radova 7. Međunarodne konferencije - Savremena dostignuća u građevinarstvu 2019
T1  - A method of determining parameters of Bofang model on the example of "Bileca" reservoir
EP  - 705
SP  - 695
DO  - 10.14415/konferencijaGFS2019.064
ER  - 

@conference{
author = "Mirković, Uroš and Ivanović, Jovana and Pavić, Maja and Radovanović, Slobodan and Mirković, Nikola and Gospavić, Radovan and Todorović, Goran",
year = "2019",
abstract = "In this research paper, measurement data of air and water temperatures and 
water levels for "Bileca" reservoir for a period between 1967. and 2017. are presented. 
Based on the averaged measurement data values, an analytical expressions for amplitude 
of periodic temperature variation of "Bileca" reservoir are derived and an average annual 
temperature, as a function of the observed depth, is obtained, based on Bofang model. The 
obtained results allow thermal stress analysis, which represents an important factor for 
stability and safety monitoring of dams.",
publisher = "Građevinski fakultet Subotica",
journal = "Zbornik radova 7. Međunarodne konferencije - Savremena dostignuća u građevinarstvu 2019",
title = "A method of determining parameters of Bofang model on the example of "Bileca" reservoir",
pages = "705-695",
doi = "10.14415/konferencijaGFS2019.064"
}

Mirković, U., Ivanović, J., Pavić, M., Radovanović, S., Mirković, N., Gospavić, R.,& Todorović, G.. (2019). A method of determining parameters of Bofang model on the example of "Bileca" reservoir. in Zbornik radova 7. Međunarodne konferencije - Savremena dostignuća u građevinarstvu 2019
Građevinski fakultet Subotica., 695-705.
https://doi.org/10.14415/konferencijaGFS2019.064

Mirković U, Ivanović J, Pavić M, Radovanović S, Mirković N, Gospavić R, Todorović G. A method of determining parameters of Bofang model on the example of "Bileca" reservoir. in Zbornik radova 7. Međunarodne konferencije - Savremena dostignuća u građevinarstvu 2019. 2019;:695-705.
doi:10.14415/konferencijaGFS2019.064 .

Mirković, Uroš, Ivanović, Jovana, Pavić, Maja, Radovanović, Slobodan, Mirković, Nikola, Gospavić, Radovan, Todorović, Goran, "A method of determining parameters of Bofang model on the example of "Bileca" reservoir" in Zbornik radova 7. Međunarodne konferencije - Savremena dostignuća u građevinarstvu 2019 (2019):695-705,
https://doi.org/10.14415/konferencijaGFS2019.064 . .

TY  - CONF
AU  - Kijanović, Aleksandar
AU  - Mirković-Marjanović, Milica
AU  - Bjekić, Mihailo
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3057
AB  - Summary: In this paper the experimental results of two-dimensional non-stationary
temperature fields of prefabricated ferrocement sandwich panels in fire condition, were
presented. In order to determine resistance to fire, the temperature fields of two walls
dimensions of 3000 mm × 3000 mm and a thickness of 190 mm made from precast
ferrocement sandwich panels, were analyzed. The first panel has been insulated with
styro-concrete, and the second with styro-concrete and expanded polystyrene. The
panels were exposed to conditions of real fire corresponding to the standard fire curve
defined by the standard SRPS EN ISO 834-1. The tests have shown that, due to the
detonations that occur when the panels are exposed to fire, these panels have
unpredictable behavior.
C3  - 7th International Conference Contemporary Achievements in Civil Engineering
T1  - Prefabricated ferrocement sandwich elements in fire conditions
EP  - 444
SP  - 437
DO  - 10.14415/konferencijaGFS2019.038
ER  - 

@conference{
author = "Kijanović, Aleksandar and Mirković-Marjanović, Milica and Bjekić, Mihailo and Gospavić, Radovan and Todorović, Goran",
year = "2019",
abstract = "Summary: In this paper the experimental results of two-dimensional non-stationary
temperature fields of prefabricated ferrocement sandwich panels in fire condition, were
presented. In order to determine resistance to fire, the temperature fields of two walls
dimensions of 3000 mm × 3000 mm and a thickness of 190 mm made from precast
ferrocement sandwich panels, were analyzed. The first panel has been insulated with
styro-concrete, and the second with styro-concrete and expanded polystyrene. The
panels were exposed to conditions of real fire corresponding to the standard fire curve
defined by the standard SRPS EN ISO 834-1. The tests have shown that, due to the
detonations that occur when the panels are exposed to fire, these panels have
unpredictable behavior.",
journal = "7th International Conference Contemporary Achievements in Civil Engineering",
title = "Prefabricated ferrocement sandwich elements in fire conditions",
pages = "444-437",
doi = "10.14415/konferencijaGFS2019.038"
}

Kijanović, A., Mirković-Marjanović, M., Bjekić, M., Gospavić, R.,& Todorović, G.. (2019). Prefabricated ferrocement sandwich elements in fire conditions. in 7th International Conference Contemporary Achievements in Civil Engineering, 437-444.
https://doi.org/10.14415/konferencijaGFS2019.038

Kijanović A, Mirković-Marjanović M, Bjekić M, Gospavić R, Todorović G. Prefabricated ferrocement sandwich elements in fire conditions. in 7th International Conference Contemporary Achievements in Civil Engineering. 2019;:437-444.
doi:10.14415/konferencijaGFS2019.038 .

Kijanović, Aleksandar, Mirković-Marjanović, Milica, Bjekić, Mihailo, Gospavić, Radovan, Todorović, Goran, "Prefabricated ferrocement sandwich elements in fire conditions" in 7th International Conference Contemporary Achievements in Civil Engineering (2019):437-444,
https://doi.org/10.14415/konferencijaGFS2019.038 . .

TY  - JOUR
AU  - Marjanović, M. M.
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1003
AB  - The unsteady heat conduction in composite planar structure, with arbitrary number of layers, using analytical approach based on Green's Functions (GF) is analyzed. The analytical solution for spatial and temporal temperature distribution is evaluated in the general form and expressed in the terms of the convolution integrals. The GF are employed in the novel approach for calculation of Thermal Response Factors (TRF) with arbitrary shape functions for unsteady heat conduction in composite planar structure. The two pairs of TRF for spatial and temporal distribution of the temperature and the thermal flux are obtained. The whole analysis is performed in the time domain. A numerical scheme for efficient evaluation of convolution integral suitable for practical application in the case of the long term measurements with lower sampling rates is developed. The in-situ measurements of inside and outside surface temperatures and outside heat flux for a building wall under real dynamical environmental conditions during the period of then days are used for validation of the presented results and to demonstrate the possible practical application. Using developed approach and recorded surface temperatures as inputs the temporal and spatial distributions of the temperature and the thermal flux are obtained. These results are compared with experimental data and numerical simulations obtained by the Finite Volume Method (FVM).
PB  - Elsevier Masson SAS
T2  - International Journal of Thermal Sciences
T1  - An analytical approach based on Green's function to thermal response factors for composite planar structure with experimental validation
EP  - 143
SP  - 129
VL  - 139
DO  - 10.1016/j.ijthermalsci.2019.01.020
ER  - 

@article{
author = "Marjanović, M. M. and Gospavić, Radovan and Todorović, Goran",
year = "2019",
abstract = "The unsteady heat conduction in composite planar structure, with arbitrary number of layers, using analytical approach based on Green's Functions (GF) is analyzed. The analytical solution for spatial and temporal temperature distribution is evaluated in the general form and expressed in the terms of the convolution integrals. The GF are employed in the novel approach for calculation of Thermal Response Factors (TRF) with arbitrary shape functions for unsteady heat conduction in composite planar structure. The two pairs of TRF for spatial and temporal distribution of the temperature and the thermal flux are obtained. The whole analysis is performed in the time domain. A numerical scheme for efficient evaluation of convolution integral suitable for practical application in the case of the long term measurements with lower sampling rates is developed. The in-situ measurements of inside and outside surface temperatures and outside heat flux for a building wall under real dynamical environmental conditions during the period of then days are used for validation of the presented results and to demonstrate the possible practical application. Using developed approach and recorded surface temperatures as inputs the temporal and spatial distributions of the temperature and the thermal flux are obtained. These results are compared with experimental data and numerical simulations obtained by the Finite Volume Method (FVM).",
publisher = "Elsevier Masson SAS",
journal = "International Journal of Thermal Sciences",
title = "An analytical approach based on Green's function to thermal response factors for composite planar structure with experimental validation",
pages = "143-129",
volume = "139",
doi = "10.1016/j.ijthermalsci.2019.01.020"
}

Marjanović, M. M., Gospavić, R.,& Todorović, G.. (2019). An analytical approach based on Green's function to thermal response factors for composite planar structure with experimental validation. in International Journal of Thermal Sciences
Elsevier Masson SAS., 139, 129-143.
https://doi.org/10.1016/j.ijthermalsci.2019.01.020

Marjanović MM, Gospavić R, Todorović G. An analytical approach based on Green's function to thermal response factors for composite planar structure with experimental validation. in International Journal of Thermal Sciences. 2019;139:129-143.
doi:10.1016/j.ijthermalsci.2019.01.020 .

Marjanović, M. M., Gospavić, Radovan, Todorović, Goran, "An analytical approach based on Green's function to thermal response factors for composite planar structure with experimental validation" in International Journal of Thermal Sciences, 139 (2019):129-143,
https://doi.org/10.1016/j.ijthermalsci.2019.01.020 . .

TY  - CONF
AU  - Mirković Marjanović, Milica
AU  - Petojević, Zorana
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1620
AB  - In this paper, results of a long term experimental in-situ measurement of air temperatures and heat fluxes trough a building wall surfaces, are presented. Indoor and outdoor measurements were carried out simultaneously during the period of 1 month in a dwelling of residential building located in Belgrade, Serbia. The data were used to calculate the thermal transmittance of the wall according Standard ISO 9869-1:2014. The U-value obtained from the experimental data and those calculated in steady-state temperature regime are compared. Criteria for the data that have to be met in order to get accurate U-value are discussed.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 6. međunarodne konferencije Savremena dostignuća u građevinarstvu 2018
T1  - In Situ Experimental Determination of the Heat Transmittance of a Building Wall
T1  - Određivanje koeficijenta prolaza toplote kroz fasadni zid eksperimentalnim merenjem
EP  - 288
SP  - 281
VL  - 34
DO  - 10.14415/konferencijaGFS2018.027
ER  - 

@conference{
author = "Mirković Marjanović, Milica and Petojević, Zorana and Gospavić, Radovan and Todorović, Goran",
year = "2018",
abstract = "In this paper, results of a long term experimental in-situ measurement of air temperatures and heat fluxes trough a building wall surfaces, are presented. Indoor and outdoor measurements were carried out simultaneously during the period of 1 month in a dwelling of residential building located in Belgrade, Serbia. The data were used to calculate the thermal transmittance of the wall according Standard ISO 9869-1:2014. The U-value obtained from the experimental data and those calculated in steady-state temperature regime are compared. Criteria for the data that have to be met in order to get accurate U-value are discussed.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 6. međunarodne konferencije Savremena dostignuća u građevinarstvu 2018",
title = "In Situ Experimental Determination of the Heat Transmittance of a Building Wall, Određivanje koeficijenta prolaza toplote kroz fasadni zid eksperimentalnim merenjem",
pages = "288-281",
volume = "34",
doi = "10.14415/konferencijaGFS2018.027"
}

Mirković Marjanović, M., Petojević, Z., Gospavić, R.,& Todorović, G.. (2018). In Situ Experimental Determination of the Heat Transmittance of a Building Wall. in Zbornik radova 6. međunarodne konferencije Savremena dostignuća u građevinarstvu 2018
Građevinski fakultet, Subotica., 34, 281-288.
https://doi.org/10.14415/konferencijaGFS2018.027

Mirković Marjanović M, Petojević Z, Gospavić R, Todorović G. In Situ Experimental Determination of the Heat Transmittance of a Building Wall. in Zbornik radova 6. međunarodne konferencije Savremena dostignuća u građevinarstvu 2018. 2018;34:281-288.
doi:10.14415/konferencijaGFS2018.027 .

Mirković Marjanović, Milica, Petojević, Zorana, Gospavić, Radovan, Todorović, Goran, "In Situ Experimental Determination of the Heat Transmittance of a Building Wall" in Zbornik radova 6. međunarodne konferencije Savremena dostignuća u građevinarstvu 2018, 34 (2018):281-288,
https://doi.org/10.14415/konferencijaGFS2018.027 . .

TY  - JOUR
AU  - Petojević, Zorana
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/982
AB  - The dynamic thermal characteristics of the components of a building have a primary influence on the energy performance of the building's envelope under real environmental conditions. In this study, a novel approach for estimation of the thermal impulse response (TIR) functions and determination of the dynamic thermal characteristics of a multilayer facade wall with unknown thermal properties, structure, and dimensions is proposed. Unlike existing approaches, such as those presented by Luo et al. (2010) and Fernandes et al. (2015), which are based on the use of known physical parameters and dimensions of the considered structure for determination of the transfer function, the proposed framework is based solely on data from in-situ experimental measurements of surface temperatures and thermal fluxes through the inner and outer wall surfaces in a dynamic regime. Consequently, the estimated TIR functions and dynamic thermal characteristics reflect the actual physical conditions of the considered building wall. The building wall is modelled as a two-input, two-output linear time invariant (LTI) dynamic system where the surface temperatures and fluxes from both sides are used as system inputs and outputs, respectively. The input and output quantities are related by the convolution integrals and TIR functions. The TIR functions are obtained using the measured data and the least square estimator. As the corresponding system of linear equations is ill-posed, the Tikhonov regularization technique with a single parameter is implemented to overcome the numerical difficulties. The optimal regularization parameter is obtained using the L-curve approach. The estimated TIR functions are validated by comparison with the analytical solutions. The dynamic thermal characteristics of the considered building wall with unknown parameters are determined using the Fourier transform (FT) of the estimated TIR functions. The practical applications of the estimated TIR functions related to the energy performance of buildings (EPB) and energy efficiency, along with additional validation, are demonstrated by the evaluation of the dynamic thermal characteristics, cumulative heat losses, heat accumulation, conductive part of thermal transmittance (U-value), and surface heat fluxes, using only the estimated TIR functions and a control set of the experimental data.
PB  - Elsevier Ltd
T2  - Applied Energy
T1  - Estimation of thermal impulse response of a multi-layer building wall through in-situ experimental measurements in a dynamic regime with applications
EP  - 486
SP  - 468
VL  - 228
DO  - 10.1016/j.apenergy.2018.06.083
ER  - 

@article{
author = "Petojević, Zorana and Gospavić, Radovan and Todorović, Goran",
year = "2018",
abstract = "The dynamic thermal characteristics of the components of a building have a primary influence on the energy performance of the building's envelope under real environmental conditions. In this study, a novel approach for estimation of the thermal impulse response (TIR) functions and determination of the dynamic thermal characteristics of a multilayer facade wall with unknown thermal properties, structure, and dimensions is proposed. Unlike existing approaches, such as those presented by Luo et al. (2010) and Fernandes et al. (2015), which are based on the use of known physical parameters and dimensions of the considered structure for determination of the transfer function, the proposed framework is based solely on data from in-situ experimental measurements of surface temperatures and thermal fluxes through the inner and outer wall surfaces in a dynamic regime. Consequently, the estimated TIR functions and dynamic thermal characteristics reflect the actual physical conditions of the considered building wall. The building wall is modelled as a two-input, two-output linear time invariant (LTI) dynamic system where the surface temperatures and fluxes from both sides are used as system inputs and outputs, respectively. The input and output quantities are related by the convolution integrals and TIR functions. The TIR functions are obtained using the measured data and the least square estimator. As the corresponding system of linear equations is ill-posed, the Tikhonov regularization technique with a single parameter is implemented to overcome the numerical difficulties. The optimal regularization parameter is obtained using the L-curve approach. The estimated TIR functions are validated by comparison with the analytical solutions. The dynamic thermal characteristics of the considered building wall with unknown parameters are determined using the Fourier transform (FT) of the estimated TIR functions. The practical applications of the estimated TIR functions related to the energy performance of buildings (EPB) and energy efficiency, along with additional validation, are demonstrated by the evaluation of the dynamic thermal characteristics, cumulative heat losses, heat accumulation, conductive part of thermal transmittance (U-value), and surface heat fluxes, using only the estimated TIR functions and a control set of the experimental data.",
publisher = "Elsevier Ltd",
journal = "Applied Energy",
title = "Estimation of thermal impulse response of a multi-layer building wall through in-situ experimental measurements in a dynamic regime with applications",
pages = "486-468",
volume = "228",
doi = "10.1016/j.apenergy.2018.06.083"
}

Petojević, Z., Gospavić, R.,& Todorović, G.. (2018). Estimation of thermal impulse response of a multi-layer building wall through in-situ experimental measurements in a dynamic regime with applications. in Applied Energy
Elsevier Ltd., 228, 468-486.
https://doi.org/10.1016/j.apenergy.2018.06.083

Petojević Z, Gospavić R, Todorović G. Estimation of thermal impulse response of a multi-layer building wall through in-situ experimental measurements in a dynamic regime with applications. in Applied Energy. 2018;228:468-486.
doi:10.1016/j.apenergy.2018.06.083 .

Petojević, Zorana, Gospavić, Radovan, Todorović, Goran, "Estimation of thermal impulse response of a multi-layer building wall through in-situ experimental measurements in a dynamic regime with applications" in Applied Energy, 228 (2018):468-486,
https://doi.org/10.1016/j.apenergy.2018.06.083 . .

TY  - CONF
AU  - Mirković, Milica
AU  - Aškrabić, Marina
AU  - Petojević, Zorana
AU  - Todorović, Goran
AU  - Gospavić, Radovan
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1570
PB  - Beograd
C3  - Zbornik radova / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru XXVII kongresa Društva za ispitivanje i istraživanje materijala i konstrukcija (DIMK) Srbije], Vršac, 1
T1  - Određivanje konvektivnog koeficijenta prelaza toplote fasadnog zida merenjima u dugom vremenskom periodu
EP  - 504
SP  - 499
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1570
ER  - 

@conference{
author = "Mirković, Milica and Aškrabić, Marina and Petojević, Zorana and Todorović, Goran and Gospavić, Radovan",
year = "2017",
publisher = "Beograd",
journal = "Zbornik radova / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru XXVII kongresa Društva za ispitivanje i istraživanje materijala i konstrukcija (DIMK) Srbije], Vršac, 1",
title = "Određivanje konvektivnog koeficijenta prelaza toplote fasadnog zida merenjima u dugom vremenskom periodu",
pages = "504-499",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1570"
}

Mirković, M., Aškrabić, M., Petojević, Z., Todorović, G.,& Gospavić, R.. (2017). Određivanje konvektivnog koeficijenta prelaza toplote fasadnog zida merenjima u dugom vremenskom periodu. in Zbornik radova / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru XXVII kongresa Društva za ispitivanje i istraživanje materijala i konstrukcija (DIMK) Srbije], Vršac, 1
Beograd., 499-504.
https://hdl.handle.net/21.15107/rcub_grafar_1570

Mirković M, Aškrabić M, Petojević Z, Todorović G, Gospavić R. Određivanje konvektivnog koeficijenta prelaza toplote fasadnog zida merenjima u dugom vremenskom periodu. in Zbornik radova / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru XXVII kongresa Društva za ispitivanje i istraživanje materijala i konstrukcija (DIMK) Srbije], Vršac, 1. 2017;:499-504.
https://hdl.handle.net/21.15107/rcub_grafar_1570 .

Mirković, Milica, Aškrabić, Marina, Petojević, Zorana, Todorović, Goran, Gospavić, Radovan, "Određivanje konvektivnog koeficijenta prelaza toplote fasadnog zida merenjima u dugom vremenskom periodu" in Zbornik radova / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru XXVII kongresa Društva za ispitivanje i istraživanje materijala i konstrukcija (DIMK) Srbije], Vršac, 1 (2017):499-504,
https://hdl.handle.net/21.15107/rcub_grafar_1570 .

TY  - CONF
AU  - Petojević, Zorana
AU  - Mitković, Predrag
AU  - Mirković, Nikola
AU  - Milovanović, Jovana
AU  - Ninić, Bojana
AU  - Mirković, Milica
AU  - Šumarac, Dragoslav
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1531
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
T1  - Estimation of temperature transfer function in facade wall heat transport
T1  - Određivanje transfer funkcije temperature pri prolasku toplote kroz fasadni zid
EP  - 748
SP  - 739
VL  - 33
DO  - 10.14415/konferencijaGFS2017.078
ER  - 

@conference{
author = "Petojević, Zorana and Mitković, Predrag and Mirković, Nikola and Milovanović, Jovana and Ninić, Bojana and Mirković, Milica and Šumarac, Dragoslav and Gospavić, Radovan and Todorović, Goran",
year = "2017",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017",
title = "Estimation of temperature transfer function in facade wall heat transport, Određivanje transfer funkcije temperature pri prolasku toplote kroz fasadni zid",
pages = "748-739",
volume = "33",
doi = "10.14415/konferencijaGFS2017.078"
}

Petojević, Z., Mitković, P., Mirković, N., Milovanović, J., Ninić, B., Mirković, M., Šumarac, D., Gospavić, R.,& Todorović, G.. (2017). Estimation of temperature transfer function in facade wall heat transport. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
Građevinski fakultet, Subotica., 33, 739-748.
https://doi.org/10.14415/konferencijaGFS2017.078

Petojević Z, Mitković P, Mirković N, Milovanović J, Ninić B, Mirković M, Šumarac D, Gospavić R, Todorović G. Estimation of temperature transfer function in facade wall heat transport. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017. 2017;33:739-748.
doi:10.14415/konferencijaGFS2017.078 .

Petojević, Zorana, Mitković, Predrag, Mirković, Nikola, Milovanović, Jovana, Ninić, Bojana, Mirković, Milica, Šumarac, Dragoslav, Gospavić, Radovan, Todorović, Goran, "Estimation of temperature transfer function in facade wall heat transport" in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017, 33 (2017):739-748,
https://doi.org/10.14415/konferencijaGFS2017.078 . .

TY  - CONF
AU  - Mirković, Nikola
AU  - Mitković, Predrag
AU  - Ninić, Bojana
AU  - Milovanović, Jovana
AU  - Mirković, Milica
AU  - Petojević, Zorana
AU  - Šumarac, Dragoslav
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1519
AB  - In this paper, the results of numerical simulation of 2D non-stationary temperature fields in commonly used composite structural members made of steel and concrete in fire conditions were presented. Simulation is based on the model which includes temperature dependence of physical parameters of materials, specific heat and thermal conductivity. Analysis of composite structural members comprises determination of a heat flux field which additionally facilitates understanding of region and geometry ofheat flow, thus enhancing fire protection design. Initial temperature distribution is adopted as uniform, according to Eurocode. Fire conditions were according to ISO 834.The FEM computations for different protection scenario and protective materials for partially encased I section - are conducted in ABAQUS. Obtained results can be used in cost optimization of fire protection measures.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
T1  - Composite structural members in fire conditions and measures of protection
T1  - Spregnuti elementi u uslovima požara i mere zaštite
EP  - 139
SP  - 131
VL  - 33
DO  - 10.14415/konferencijaGFS2017.013
ER  - 

@conference{
author = "Mirković, Nikola and Mitković, Predrag and Ninić, Bojana and Milovanović, Jovana and Mirković, Milica and Petojević, Zorana and Šumarac, Dragoslav and Gospavić, Radovan and Todorović, Goran",
year = "2017",
abstract = "In this paper, the results of numerical simulation of 2D non-stationary temperature fields in commonly used composite structural members made of steel and concrete in fire conditions were presented. Simulation is based on the model which includes temperature dependence of physical parameters of materials, specific heat and thermal conductivity. Analysis of composite structural members comprises determination of a heat flux field which additionally facilitates understanding of region and geometry ofheat flow, thus enhancing fire protection design. Initial temperature distribution is adopted as uniform, according to Eurocode. Fire conditions were according to ISO 834.The FEM computations for different protection scenario and protective materials for partially encased I section - are conducted in ABAQUS. Obtained results can be used in cost optimization of fire protection measures.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017",
title = "Composite structural members in fire conditions and measures of protection, Spregnuti elementi u uslovima požara i mere zaštite",
pages = "139-131",
volume = "33",
doi = "10.14415/konferencijaGFS2017.013"
}

Mirković, N., Mitković, P., Ninić, B., Milovanović, J., Mirković, M., Petojević, Z., Šumarac, D., Gospavić, R.,& Todorović, G.. (2017). Composite structural members in fire conditions and measures of protection. in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
Građevinski fakultet, Subotica., 33, 131-139.
https://doi.org/10.14415/konferencijaGFS2017.013

Mirković N, Mitković P, Ninić B, Milovanović J, Mirković M, Petojević Z, Šumarac D, Gospavić R, Todorović G. Composite structural members in fire conditions and measures of protection. in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017. 2017;33:131-139.
doi:10.14415/konferencijaGFS2017.013 .

Mirković, Nikola, Mitković, Predrag, Ninić, Bojana, Milovanović, Jovana, Mirković, Milica, Petojević, Zorana, Šumarac, Dragoslav, Gospavić, Radovan, Todorović, Goran, "Composite structural members in fire conditions and measures of protection" in Zbornik radova 5. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2017, 33 (2017):131-139,
https://doi.org/10.14415/konferencijaGFS2017.013 . .

TY  - CONF
AU  - Josipović, Jovana
AU  - Aškrabić, Marina
AU  - Todorović, Goran
AU  - Gospavić, Radovan
AU  - Brajović, Ljiljana
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1432
PB  - Univerzitet u Banjaluci, Arhitektonsko-građevinsko-geodetski fakultet, Banja Luka
C3  - XII međunarodna naučno-stručna konferencija Savremena teorija i praksa u graditeljstvu, Banja Luka, 7.-8. decembar 2016 : zbornik radova = 12th International Scientific and Professional Conference on Contemporary Theory and Practice in Construction, Banja
T1  - Analiza nagiba na brani Bajina Bašta primenom instrumenta klinometar
EP  - 326
SP  - 319
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1432
ER  - 

@conference{
author = "Josipović, Jovana and Aškrabić, Marina and Todorović, Goran and Gospavić, Radovan and Brajović, Ljiljana",
year = "2016",
publisher = "Univerzitet u Banjaluci, Arhitektonsko-građevinsko-geodetski fakultet, Banja Luka",
journal = "XII međunarodna naučno-stručna konferencija Savremena teorija i praksa u graditeljstvu, Banja Luka, 7.-8. decembar 2016 : zbornik radova = 12th International Scientific and Professional Conference on Contemporary Theory and Practice in Construction, Banja",
title = "Analiza nagiba na brani Bajina Bašta primenom instrumenta klinometar",
pages = "326-319",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1432"
}

Josipović, J., Aškrabić, M., Todorović, G., Gospavić, R.,& Brajović, L.. (2016). Analiza nagiba na brani Bajina Bašta primenom instrumenta klinometar. in XII međunarodna naučno-stručna konferencija Savremena teorija i praksa u graditeljstvu, Banja Luka, 7.-8. decembar 2016 : zbornik radova = 12th International Scientific and Professional Conference on Contemporary Theory and Practice in Construction, Banja
Univerzitet u Banjaluci, Arhitektonsko-građevinsko-geodetski fakultet, Banja Luka., 319-326.
https://hdl.handle.net/21.15107/rcub_grafar_1432

Josipović J, Aškrabić M, Todorović G, Gospavić R, Brajović L. Analiza nagiba na brani Bajina Bašta primenom instrumenta klinometar. in XII međunarodna naučno-stručna konferencija Savremena teorija i praksa u graditeljstvu, Banja Luka, 7.-8. decembar 2016 : zbornik radova = 12th International Scientific and Professional Conference on Contemporary Theory and Practice in Construction, Banja. 2016;:319-326.
https://hdl.handle.net/21.15107/rcub_grafar_1432 .

Josipović, Jovana, Aškrabić, Marina, Todorović, Goran, Gospavić, Radovan, Brajović, Ljiljana, "Analiza nagiba na brani Bajina Bašta primenom instrumenta klinometar" in XII međunarodna naučno-stručna konferencija Savremena teorija i praksa u graditeljstvu, Banja Luka, 7.-8. decembar 2016 : zbornik radova = 12th International Scientific and Professional Conference on Contemporary Theory and Practice in Construction, Banja (2016):319-326,
https://hdl.handle.net/21.15107/rcub_grafar_1432 .

TY  - CONF
AU  - Aškrabić, Marina
AU  - Josipović, Jovana
AU  - Petojević, Zorana
AU  - Mirković, Milica
AU  - Brajović, Ljiljana
AU  - Gospavić, Radovan
AU  - Radovanović, Slobodan
AU  - Todorović, Goran
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1389
AB  - In this paper, physical processes of adsorption and transport of humidity, which has dominant influence on the physical and thermal characteristics of concrete, has been described. The impact of structure of concrete especially pores dimensions and distribution has been explained. The drastic increase in the coefficient of thermal conductivity λ of concrete at increasing relative humidity has been analyzed. An analytic formula for λ, as a function of the concrete density and moisture content in exploitation conditions, starting from light autoclaved aerated to heavy concrete, has been given. The formula is based on experimental values for λ available in the literature. It has been confirmed that the thermal conductivity of all concretes are directly related to density and inversely to porosity and pores diameters.
PB  - Građevinski fakultet Subotica, Subotica
C3  - Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
T1  - Moisture content influence on thermal conductivity of concrete
T1  - Uticaj sadržaja vlage na koeficijent toplotne provodnosti betona
EP  - 424
SP  - 415
VL  - 32
DO  - 10.14415/konferencijaGFS2016.042
ER  - 

@conference{
author = "Aškrabić, Marina and Josipović, Jovana and Petojević, Zorana and Mirković, Milica and Brajović, Ljiljana and Gospavić, Radovan and Radovanović, Slobodan and Todorović, Goran",
year = "2016",
abstract = "In this paper, physical processes of adsorption and transport of humidity, which has dominant influence on the physical and thermal characteristics of concrete, has been described. The impact of structure of concrete especially pores dimensions and distribution has been explained. The drastic increase in the coefficient of thermal conductivity λ of concrete at increasing relative humidity has been analyzed. An analytic formula for λ, as a function of the concrete density and moisture content in exploitation conditions, starting from light autoclaved aerated to heavy concrete, has been given. The formula is based on experimental values for λ available in the literature. It has been confirmed that the thermal conductivity of all concretes are directly related to density and inversely to porosity and pores diameters.",
publisher = "Građevinski fakultet Subotica, Subotica",
journal = "Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016",
title = "Moisture content influence on thermal conductivity of concrete, Uticaj sadržaja vlage na koeficijent toplotne provodnosti betona",
pages = "424-415",
volume = "32",
doi = "10.14415/konferencijaGFS2016.042"
}

Aškrabić, M., Josipović, J., Petojević, Z., Mirković, M., Brajović, L., Gospavić, R., Radovanović, S.,& Todorović, G.. (2016). Moisture content influence on thermal conductivity of concrete. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
Građevinski fakultet Subotica, Subotica., 32, 415-424.
https://doi.org/10.14415/konferencijaGFS2016.042

Aškrabić M, Josipović J, Petojević Z, Mirković M, Brajović L, Gospavić R, Radovanović S, Todorović G. Moisture content influence on thermal conductivity of concrete. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016. 2016;32:415-424.
doi:10.14415/konferencijaGFS2016.042 .

Aškrabić, Marina, Josipović, Jovana, Petojević, Zorana, Mirković, Milica, Brajović, Ljiljana, Gospavić, Radovan, Radovanović, Slobodan, Todorović, Goran, "Moisture content influence on thermal conductivity of concrete" in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016, 32 (2016):415-424,
https://doi.org/10.14415/konferencijaGFS2016.042 . .

TY  - CONF
AU  - Maksimović, J.
AU  - Mirković, M.
AU  - Brajović, Ljiljana
AU  - Todorović, Goran
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1503
PB  - Serbian Society for Geometry and Graphics (SUGIG), Faculty of Civil Engineering, University of Belgrade and Akademska misao Beograd, Belgrade
C3  - Proceedings / The 5th International Scientific Conference on Geometry and Graphics moNGeometrija 2016, June 23th-26th 2016, Belgrade, Serbia
T1  - Application of Geometry in Geodetic Instruments and Measurement Technics
EP  - 56
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1503
ER  - 

@conference{
author = "Maksimović, J. and Mirković, M. and Brajović, Ljiljana and Todorović, Goran",
year = "2016",
publisher = "Serbian Society for Geometry and Graphics (SUGIG), Faculty of Civil Engineering, University of Belgrade and Akademska misao Beograd, Belgrade",
journal = "Proceedings / The 5th International Scientific Conference on Geometry and Graphics moNGeometrija 2016, June 23th-26th 2016, Belgrade, Serbia",
title = "Application of Geometry in Geodetic Instruments and Measurement Technics",
pages = "56-44",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1503"
}

Maksimović, J., Mirković, M., Brajović, L.,& Todorović, G.. (2016). Application of Geometry in Geodetic Instruments and Measurement Technics. in Proceedings / The 5th International Scientific Conference on Geometry and Graphics moNGeometrija 2016, June 23th-26th 2016, Belgrade, Serbia
Serbian Society for Geometry and Graphics (SUGIG), Faculty of Civil Engineering, University of Belgrade and Akademska misao Beograd, Belgrade., 44-56.
https://hdl.handle.net/21.15107/rcub_grafar_1503

Maksimović J, Mirković M, Brajović L, Todorović G. Application of Geometry in Geodetic Instruments and Measurement Technics. in Proceedings / The 5th International Scientific Conference on Geometry and Graphics moNGeometrija 2016, June 23th-26th 2016, Belgrade, Serbia. 2016;:44-56.
https://hdl.handle.net/21.15107/rcub_grafar_1503 .

Maksimović, J., Mirković, M., Brajović, Ljiljana, Todorović, Goran, "Application of Geometry in Geodetic Instruments and Measurement Technics" in Proceedings / The 5th International Scientific Conference on Geometry and Graphics moNGeometrija 2016, June 23th-26th 2016, Belgrade, Serbia (2016):44-56,
https://hdl.handle.net/21.15107/rcub_grafar_1503 .

TY  - CONF
AU  - Josipović, Jovana
AU  - Aškrabić, Marina
AU  - Kuzmanović, Vladan
AU  - Mirković, Milica
AU  - Petojević, Zorana
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1504
AB  - In this paper, the data for the observed temperatures (of the air, body of the dam and water in the reservoir), for "Bajina Bašta" Dam, during the 20-years period, are presented. The data were used to predict the unsteady temperature field in the reservoir, based on the Bofang model for analytical ralationship between the temperature, time and reservoir depth. Obtained temperature diagrams present a usefull tool for assesing the thermal-stress field and the safety of the dam.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
T1  - Temperature variation of "Bajina Bašta" dam between 1995-2015
T1  - Temperature u brani i akumulaciji "Bajina Bašta" u periodu 1995-2015
EP  - 698
SP  - 689
VL  - 32
DO  - 10.14415/konferencijaGFS2016.070
ER  - 

@conference{
author = "Josipović, Jovana and Aškrabić, Marina and Kuzmanović, Vladan and Mirković, Milica and Petojević, Zorana and Gospavić, Radovan and Todorović, Goran",
year = "2016",
abstract = "In this paper, the data for the observed temperatures (of the air, body of the dam and water in the reservoir), for "Bajina Bašta" Dam, during the 20-years period, are presented. The data were used to predict the unsteady temperature field in the reservoir, based on the Bofang model for analytical ralationship between the temperature, time and reservoir depth. Obtained temperature diagrams present a usefull tool for assesing the thermal-stress field and the safety of the dam.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016",
title = "Temperature variation of "Bajina Bašta" dam between 1995-2015, Temperature u brani i akumulaciji "Bajina Bašta" u periodu 1995-2015",
pages = "698-689",
volume = "32",
doi = "10.14415/konferencijaGFS2016.070"
}

Josipović, J., Aškrabić, M., Kuzmanović, V., Mirković, M., Petojević, Z., Gospavić, R.,& Todorović, G.. (2016). Temperature variation of "Bajina Bašta" dam between 1995-2015. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
Građevinski fakultet, Subotica., 32, 689-698.
https://doi.org/10.14415/konferencijaGFS2016.070

Josipović J, Aškrabić M, Kuzmanović V, Mirković M, Petojević Z, Gospavić R, Todorović G. Temperature variation of "Bajina Bašta" dam between 1995-2015. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016. 2016;32:689-698.
doi:10.14415/konferencijaGFS2016.070 .

Josipović, Jovana, Aškrabić, Marina, Kuzmanović, Vladan, Mirković, Milica, Petojević, Zorana, Gospavić, Radovan, Todorović, Goran, "Temperature variation of "Bajina Bašta" dam between 1995-2015" in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016, 32 (2016):689-698,
https://doi.org/10.14415/konferencijaGFS2016.070 . .