TY  - JOUR
AU  - Lazović Radovanović, Marija
AU  - Nikolić, Jelena
AU  - Radovanović, Janko
AU  - Kostić, Svetlana M.
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2655
AB  - The paper discusses the structural behaviour of concrete-filled steel tube columns (CFT)
when applied to the top-down construction method as temporary internal supports for ceilings. Their
ultimate capacity to take into account the actual boundary conditions of the column is essential for
successful application in construction. The paper presents the full-scale in situ testing of four slender
specimens with variable D/t ratios under concentric axial loading. The CFT columns were supported
on the previously jacked concrete piles. In addition, detailed finite element numerical models in
ABAQUS and PLAXIS computer programs were developed. The models include the nonlinear
behaviour of materials and the nonlinear behaviour of soil. The soil–pile–column interaction and
impact of the CFT column–pile connection stiffness on global column stability were considered.
The numerical model was validated by comparison with the experimental results. In conclusion,
the coefficient for the effective buckling length of the studied columns is proposed. Finally, the
experimental results of the critical buckling forces were compared with widely used international
design codes Eurocode 4-EC4, American standard-ACI and the Australian standard-AS.
T2  - Applied Sciences
T1  - Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method
VL  - 12(8), 3771
DO  - https://doi.org/10.3390/app12083771
ER  - 

@article{
author = "Lazović Radovanović, Marija and Nikolić, Jelena and Radovanović, Janko and Kostić, Svetlana M.",
year = "2022",
abstract = "The paper discusses the structural behaviour of concrete-filled steel tube columns (CFT)
when applied to the top-down construction method as temporary internal supports for ceilings. Their
ultimate capacity to take into account the actual boundary conditions of the column is essential for
successful application in construction. The paper presents the full-scale in situ testing of four slender
specimens with variable D/t ratios under concentric axial loading. The CFT columns were supported
on the previously jacked concrete piles. In addition, detailed finite element numerical models in
ABAQUS and PLAXIS computer programs were developed. The models include the nonlinear
behaviour of materials and the nonlinear behaviour of soil. The soil–pile–column interaction and
impact of the CFT column–pile connection stiffness on global column stability were considered.
The numerical model was validated by comparison with the experimental results. In conclusion,
the coefficient for the effective buckling length of the studied columns is proposed. Finally, the
experimental results of the critical buckling forces were compared with widely used international
design codes Eurocode 4-EC4, American standard-ACI and the Australian standard-AS.",
journal = "Applied Sciences",
title = "Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method",
volume = "12(8), 3771",
doi = "https://doi.org/10.3390/app12083771"
}

Lazović Radovanović, M., Nikolić, J., Radovanović, J.,& Kostić, S. M.. (2022). Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method. in Applied Sciences, 12(8), 3771.
https://doi.org/https://doi.org/10.3390/app12083771

Lazović Radovanović M, Nikolić J, Radovanović J, Kostić SM. Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method. in Applied Sciences. 2022;12(8), 3771.
doi:https://doi.org/10.3390/app12083771 .

Lazović Radovanović, Marija, Nikolić, Jelena, Radovanović, Janko, Kostić, Svetlana M., "Structural Behaviour of Axially Loaded Concrete-Filled Steel Tube Columns during the Top-Down Construction Method" in Applied Sciences, 12(8), 3771 (2022),
https://doi.org/https://doi.org/10.3390/app12083771 . .

TY  - CONF
AU  - Nikolić, Jelena
AU  - Kostić, Svetlana M.
AU  - Deretić-Stojanović, Biljana
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2364
AB  - The paper compares the following methods for analysis of composite steel-concrete beams: the
“exact” analysis method, simplified method, effective modulus method and the method proposed
by Eurocode 4 design code. The exact analysis method is based on the application of linear
integral operators. Simplified analysis is derived from the exact method and adopts the
assumption that generalized displacements change linearly with the concrete creep function.
Effective modulus method and the method proposed by the Eurocode 4 design code are algebraic
methods, widely used in practice. The results obtained using the mentioned four methods are
compared on one example.
PB  - Univerzitet u Beogradu Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
C3  - 16th Congress hosted by Association of Structural Engineers of Serbia
T1  - Composite Steel-Concrete Beam Analysis using Different Methods
EP  - 336
SP  - 330
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2364
ER  - 

@conference{
author = "Nikolić, Jelena and Kostić, Svetlana M. and Deretić-Stojanović, Biljana",
year = "2021",
abstract = "The paper compares the following methods for analysis of composite steel-concrete beams: the
“exact” analysis method, simplified method, effective modulus method and the method proposed
by Eurocode 4 design code. The exact analysis method is based on the application of linear
integral operators. Simplified analysis is derived from the exact method and adopts the
assumption that generalized displacements change linearly with the concrete creep function.
Effective modulus method and the method proposed by the Eurocode 4 design code are algebraic
methods, widely used in practice. The results obtained using the mentioned four methods are
compared on one example.",
publisher = "Univerzitet u Beogradu Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "16th Congress hosted by Association of Structural Engineers of Serbia",
title = "Composite Steel-Concrete Beam Analysis using Different Methods",
pages = "336-330",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2364"
}

Nikolić, J., Kostić, S. M.,& Deretić-Stojanović, B.. (2021). Composite Steel-Concrete Beam Analysis using Different Methods. in 16th Congress hosted by Association of Structural Engineers of Serbia
Univerzitet u Beogradu Građevinski fakultet., 330-336.
https://hdl.handle.net/21.15107/rcub_grafar_2364

Nikolić J, Kostić SM, Deretić-Stojanović B. Composite Steel-Concrete Beam Analysis using Different Methods. in 16th Congress hosted by Association of Structural Engineers of Serbia. 2021;:330-336.
https://hdl.handle.net/21.15107/rcub_grafar_2364 .

Nikolić, Jelena, Kostić, Svetlana M., Deretić-Stojanović, Biljana, "Composite Steel-Concrete Beam Analysis using Different Methods" in 16th Congress hosted by Association of Structural Engineers of Serbia (2021):330-336,
https://hdl.handle.net/21.15107/rcub_grafar_2364 .

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  - Lazović, Marija
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2982
AB  - During the previous period, large and uneven settlements of the ''UNIVEREXPORT'' distribution center occurred on one part of the main structure and foundation slab. These settlements are such that they affect the normal functioning of the object. The structure of the object on the columns, is founded on "Franki" piles, and the floor construction directly on the ground over a layer of tiles. This floor structure is loaded with extremely high vertical live loads. Based on the analysis of variant solutions, the most favorable solution was adopted as strengthening of the floor structure by jacking a certain number of composite piles into the ground until the required load-bearing capacity is achieved.
PB  - Društvo građevinskih konstruktera Srbije
C3  - Simpozijum 2020, Društvo građevinskih konstruktera Srbije,  24-26. septembar 2020. Aranđelovac
T1  - Ojačanje i sanacija elemenata temeljne konstrukcije distributivnog centra UNIVEREXPORT
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2982
ER  - 

@conference{
author = "Lazović, Marija",
year = "2020",
abstract = "During the previous period, large and uneven settlements of the ''UNIVEREXPORT'' distribution center occurred on one part of the main structure and foundation slab. These settlements are such that they affect the normal functioning of the object. The structure of the object on the columns, is founded on "Franki" piles, and the floor construction directly on the ground over a layer of tiles. This floor structure is loaded with extremely high vertical live loads. Based on the analysis of variant solutions, the most favorable solution was adopted as strengthening of the floor structure by jacking a certain number of composite piles into the ground until the required load-bearing capacity is achieved.",
publisher = "Društvo građevinskih konstruktera Srbije",
journal = "Simpozijum 2020, Društvo građevinskih konstruktera Srbije,  24-26. septembar 2020. Aranđelovac",
title = "Ojačanje i sanacija elemenata temeljne konstrukcije distributivnog centra UNIVEREXPORT",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2982"
}

Lazović, M.. (2020). Ojačanje i sanacija elemenata temeljne konstrukcije distributivnog centra UNIVEREXPORT. in Simpozijum 2020, Društvo građevinskih konstruktera Srbije,  24-26. septembar 2020. Aranđelovac
Društvo građevinskih konstruktera Srbije..
https://hdl.handle.net/21.15107/rcub_grafar_2982

Lazović M. Ojačanje i sanacija elemenata temeljne konstrukcije distributivnog centra UNIVEREXPORT. in Simpozijum 2020, Društvo građevinskih konstruktera Srbije,  24-26. septembar 2020. Aranđelovac. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_2982 .

Lazović, Marija, "Ojačanje i sanacija elemenata temeljne konstrukcije distributivnog centra UNIVEREXPORT" in Simpozijum 2020, Društvo građevinskih konstruktera Srbije,  24-26. septembar 2020. Aranđelovac (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2982 .

TY  - JOUR
AU  - Knežević, Petar
AU  - Šumarac, Dragoslav
AU  - Perović, Zoran
AU  - Dolićanin, Ćemal
AU  - Burzić, Zijah
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2134
AB  - This paper presents the new type of Preisach model that describes the elastoplastic behavior of structural mild steel under axial monotonic tension load with damage. Newly developed model takes into account elastic region, horizontal yield plateau, plastic hardening region, and softening region due to material damage under tension. In order to study the monotonic behavior of structural mild steel and find suitable material properties for the model, monotonic axial tensile tests up to the failure are carried out. Tests are conducted on specimens of the three most common types of European structural steel S235, S275, and S355. The basis of the model represents a mathematical description of material single crystal monotonic axial behavior. In the multilinear mechanical model, a drop in stress, after achieving ultimate stress under tension is achieved by a negative stiffness element. The good agreement with experimental results is accomplished by parallel connection of infinitely many single crystal elements, forming the polycrystalline model. The model represents a good solution for common engineering practice due to its geometrical representation in form of Preisach triangle.
PB  - Budapest University of Technology and Economics
T2  - Periodica Polytechnica Civil Engineering
T1  - A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage
EP  - 303
IS  - 1
SP  - 296
VL  - 64
DO  - 10.3311/PPci.14809
ER  - 

@article{
author = "Knežević, Petar and Šumarac, Dragoslav and Perović, Zoran and Dolićanin, Ćemal and Burzić, Zijah",
year = "2020",
abstract = "This paper presents the new type of Preisach model that describes the elastoplastic behavior of structural mild steel under axial monotonic tension load with damage. Newly developed model takes into account elastic region, horizontal yield plateau, plastic hardening region, and softening region due to material damage under tension. In order to study the monotonic behavior of structural mild steel and find suitable material properties for the model, monotonic axial tensile tests up to the failure are carried out. Tests are conducted on specimens of the three most common types of European structural steel S235, S275, and S355. The basis of the model represents a mathematical description of material single crystal monotonic axial behavior. In the multilinear mechanical model, a drop in stress, after achieving ultimate stress under tension is achieved by a negative stiffness element. The good agreement with experimental results is accomplished by parallel connection of infinitely many single crystal elements, forming the polycrystalline model. The model represents a good solution for common engineering practice due to its geometrical representation in form of Preisach triangle.",
publisher = "Budapest University of Technology and Economics",
journal = "Periodica Polytechnica Civil Engineering",
title = "A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage",
pages = "303-296",
number = "1",
volume = "64",
doi = "10.3311/PPci.14809"
}

Knežević, P., Šumarac, D., Perović, Z., Dolićanin, Ć.,& Burzić, Z.. (2020). A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage. in Periodica Polytechnica Civil Engineering
Budapest University of Technology and Economics., 64(1), 296-303.
https://doi.org/10.3311/PPci.14809

Knežević P, Šumarac D, Perović Z, Dolićanin Ć, Burzić Z. A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage. in Periodica Polytechnica Civil Engineering. 2020;64(1):296-303.
doi:10.3311/PPci.14809 .

Knežević, Petar, Šumarac, Dragoslav, Perović, Zoran, Dolićanin, Ćemal, Burzić, Zijah, "A Preisach Model for Monotonic Tension Response of Structural Mild Steel with Damage" in Periodica Polytechnica Civil Engineering, 64, no. 1 (2020):296-303,
https://doi.org/10.3311/PPci.14809 . .

TY  - JOUR
AU  - Kostadinović Vranešević, Kristina
AU  - Gluhović, Nina
AU  - Dobrić, Jelena
AU  - Spremić, Milan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/995
AB  - Thin-walled cylindrical and conical shells represent one of the most complex structural elements considering their behaviour and susceptibility to buckling. A brief theoretical review including the presentation of different currently available design recommendations is given in this paper. Influence of initial imperfections on nonlinear behaviour of cylindrical and conical shells is also presented through numerical analysis. Shells with different wall thicknesses and different values of initial imperfections, but constant length and diameter of shell are analysed. Numerical analysis includes materially and geometrically nonlinear analysis of cylindrical and conical shells, using experimentally obtained stress-strain relation of carbon steel and stainless steel. Material nonlinearity and initial geometrical imperfections resulted in significantly lower buckling resistance of shells.
AB  - Tanke kružne cilindrične i konusne ljuske predstavljaju jedan od složenijih konstruktivnih elemenata u pogledu ponašanja i osetljivosti na izbočavanje. U radu je dat kratak teorijski osvrt, s prikazom različitih, trenutno dostupnih, proračunskih preporuka. Prikazana je numerička analiza uticaja početnih imperfekcija na nelinearno ponašanje kružnih cilindričnih i konusnih ljuski. Analizirane su ljuske različite debljine zida, s konstantnim vrednostima dužine i prečnika ljuske, kao i s različitim vrednostima početnih imperfekcija. Analiza obuhvata uticaj materijalne i geometrijske nelinearnosti na ponašanje ljuski od ugljeničnog i nerđajućeg čelika, uključujući eksperimentalne krive napon-dilatacija. U radu je pokazano da materijalna nelineranost i početna geometrijska imperfekcija dovode do značajnog pada nosivosti na izbočavanje ljuski.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel
T1  - Poređenje ponašanja tankih cilindričnih i konusnih ljuski od ugljeničnog i nerđajućeg čelika
EP  - 42
IS  - 1
SP  - 27
VL  - 62
DO  - 10.5937/GRMK1901027K
ER  - 

@article{
author = "Kostadinović Vranešević, Kristina and Gluhović, Nina and Dobrić, Jelena and Spremić, Milan",
year = "2019",
abstract = "Thin-walled cylindrical and conical shells represent one of the most complex structural elements considering their behaviour and susceptibility to buckling. A brief theoretical review including the presentation of different currently available design recommendations is given in this paper. Influence of initial imperfections on nonlinear behaviour of cylindrical and conical shells is also presented through numerical analysis. Shells with different wall thicknesses and different values of initial imperfections, but constant length and diameter of shell are analysed. Numerical analysis includes materially and geometrically nonlinear analysis of cylindrical and conical shells, using experimentally obtained stress-strain relation of carbon steel and stainless steel. Material nonlinearity and initial geometrical imperfections resulted in significantly lower buckling resistance of shells., Tanke kružne cilindrične i konusne ljuske predstavljaju jedan od složenijih konstruktivnih elemenata u pogledu ponašanja i osetljivosti na izbočavanje. U radu je dat kratak teorijski osvrt, s prikazom različitih, trenutno dostupnih, proračunskih preporuka. Prikazana je numerička analiza uticaja početnih imperfekcija na nelinearno ponašanje kružnih cilindričnih i konusnih ljuski. Analizirane su ljuske različite debljine zida, s konstantnim vrednostima dužine i prečnika ljuske, kao i s različitim vrednostima početnih imperfekcija. Analiza obuhvata uticaj materijalne i geometrijske nelinearnosti na ponašanje ljuski od ugljeničnog i nerđajućeg čelika, uključujući eksperimentalne krive napon-dilatacija. U radu je pokazano da materijalna nelineranost i početna geometrijska imperfekcija dovode do značajnog pada nosivosti na izbočavanje ljuski.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel, Poređenje ponašanja tankih cilindričnih i konusnih ljuski od ugljeničnog i nerđajućeg čelika",
pages = "42-27",
number = "1",
volume = "62",
doi = "10.5937/GRMK1901027K"
}

Kostadinović Vranešević, K., Gluhović, N., Dobrić, J.,& Spremić, M.. (2019). Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 62(1), 27-42.
https://doi.org/10.5937/GRMK1901027K

Kostadinović Vranešević K, Gluhović N, Dobrić J, Spremić M. Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel. in Građevinski materijali i konstrukcije. 2019;62(1):27-42.
doi:10.5937/GRMK1901027K .

Kostadinović Vranešević, Kristina, Gluhović, Nina, Dobrić, Jelena, Spremić, Milan, "Behaviour of thin-walled cylindrical and conical shells: Carbon vs. stainless steel" in Građevinski materijali i konstrukcije, 62, no. 1 (2019):27-42,
https://doi.org/10.5937/GRMK1901027K . .

TY  - CONF
AU  - Kostadinović Vranešević, Kristina
AU  - Šarkić-Glumac, Anina
AU  - Hemida, Hassan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2110
AB  - Aim of this paper is to investigate wind pressure distribution on low-rise industrial
building based on the results from atmospheric boundary layer wind tunnel experiments.
Building model is a hanger with a tilted roof with an inclination of 5°. Values of mean and
fluctuating pressure coefficients measured on the surface of the roof and side walls of the
model are discussed in the paper. Five wind approaching angles are considered: 0°, 15°,
30°, 45° and 90°. The investigation can offer some basic understanding of wind behaviour
and effects on low-rise industrial buildings regarding different wind angles.
PB  - Faculty of Civil Engineering Subotica
C3  - Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019
T1  - Experimental investigation of wind load on low-rise industrial building
EP  - 340
SP  - 333
DO  - 10.14415/konferencijaGFS2019.030
ER  - 

@conference{
author = "Kostadinović Vranešević, Kristina and Šarkić-Glumac, Anina and Hemida, Hassan",
year = "2019",
abstract = "Aim of this paper is to investigate wind pressure distribution on low-rise industrial
building based on the results from atmospheric boundary layer wind tunnel experiments.
Building model is a hanger with a tilted roof with an inclination of 5°. Values of mean and
fluctuating pressure coefficients measured on the surface of the roof and side walls of the
model are discussed in the paper. Five wind approaching angles are considered: 0°, 15°,
30°, 45° and 90°. The investigation can offer some basic understanding of wind behaviour
and effects on low-rise industrial buildings regarding different wind angles.",
publisher = "Faculty of Civil Engineering Subotica",
journal = "Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019",
title = "Experimental investigation of wind load on low-rise industrial building",
pages = "340-333",
doi = "10.14415/konferencijaGFS2019.030"
}

Kostadinović Vranešević, K., Šarkić-Glumac, A.,& Hemida, H.. (2019). Experimental investigation of wind load on low-rise industrial building. in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019
Faculty of Civil Engineering Subotica., 333-340.
https://doi.org/10.14415/konferencijaGFS2019.030

Kostadinović Vranešević K, Šarkić-Glumac A, Hemida H. Experimental investigation of wind load on low-rise industrial building. in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019. 2019;:333-340.
doi:10.14415/konferencijaGFS2019.030 .

Kostadinović Vranešević, Kristina, Šarkić-Glumac, Anina, Hemida, Hassan, "Experimental investigation of wind load on low-rise industrial building" in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019 (2019):333-340,
https://doi.org/10.14415/konferencijaGFS2019.030 . .

TY  - CONF
AU  - Kostadinović Vranešević, Kristina
AU  - Šarkić-Glumac, Anina
AU  - Hemida, Hassan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2109
AB  - An experimental investigation has been conducted in order to give insight into wind flow characteristics in urban areas, in particular, its effects on low-rise buildings. Analyses are based on the results from atmospheric boundary layer wind tunnel experiments. Building model is a 1/75th scale model of a low-rise tilted house with roof inclination of 45°. Aiming to introduce the effects of neighbouring buildings, a comparative study of two configurations is presented, one with isolated principle building and another with four similar buildings surrounding the principle one. Additionally, the influence of the wind approaching angle is considered through the analyses of three directions: 0°, 45° and 90°. Wind velocity profiles above the roof of the principal building and pressure distribution on its surface are analysed in the paper.
PB  - Faculty of Civil Engineering Subotica
C3  - Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019
T1  - Experimental investigation of wind flow around low-rise tilted house
EP  - 332
SP  - 323
DO  - 10.14415/konferencijaGFS2019.029
ER  - 

@conference{
author = "Kostadinović Vranešević, Kristina and Šarkić-Glumac, Anina and Hemida, Hassan",
year = "2019",
abstract = "An experimental investigation has been conducted in order to give insight into wind flow characteristics in urban areas, in particular, its effects on low-rise buildings. Analyses are based on the results from atmospheric boundary layer wind tunnel experiments. Building model is a 1/75th scale model of a low-rise tilted house with roof inclination of 45°. Aiming to introduce the effects of neighbouring buildings, a comparative study of two configurations is presented, one with isolated principle building and another with four similar buildings surrounding the principle one. Additionally, the influence of the wind approaching angle is considered through the analyses of three directions: 0°, 45° and 90°. Wind velocity profiles above the roof of the principal building and pressure distribution on its surface are analysed in the paper.",
publisher = "Faculty of Civil Engineering Subotica",
journal = "Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019",
title = "Experimental investigation of wind flow around low-rise tilted house",
pages = "332-323",
doi = "10.14415/konferencijaGFS2019.029"
}

Kostadinović Vranešević, K., Šarkić-Glumac, A.,& Hemida, H.. (2019). Experimental investigation of wind flow around low-rise tilted house. in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019
Faculty of Civil Engineering Subotica., 323-332.
https://doi.org/10.14415/konferencijaGFS2019.029

Kostadinović Vranešević K, Šarkić-Glumac A, Hemida H. Experimental investigation of wind flow around low-rise tilted house. in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019. 2019;:323-332.
doi:10.14415/konferencijaGFS2019.029 .

Kostadinović Vranešević, Kristina, Šarkić-Glumac, Anina, Hemida, Hassan, "Experimental investigation of wind flow around low-rise tilted house" in Conference proceedings - 7th International Conference: Contemporary Achievements in Civil Engineering 2019 (2019):323-332,
https://doi.org/10.14415/konferencijaGFS2019.029 . .

TY  - CONF
AU  - Kostadinović Vranešević, Kristina
AU  - Šarkić-Glumac, Anina
AU  - Winkelmann, Ulf
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2111
AB  - In this paper, pressure field over the roof of low-rise building model has been investigating using numerical simulations. The model is surrounded by four neighboring buildings of the same geometry as the principle one. The wind behavior around the building was simulated at wind angle of 45 degrees. Numerical calculations are performed using open-source code OpenFOAM. - Analysis solver for incompressible flow was applied using the Large Eddy Simulation (LES). The effect of different mesh types and inflow conditions are discussed. Two inlet definitions was implemented, one without prescribed turbulence, with the stream-wise velocity profile from the wind tunnel (WT), and another with the incoming flow turbulence synthetically generated using the divergence-free synthetic eddy method (DFSEM). Numerical results of pressure distributions statistics are analyzed and systematically compared to the referenced experimental data. The results show that there is a significant influence of the inlet definition on the mean and standard deviation of the pressure coefficient.
PB  - Serbian Society of Mechanics
C3  - Proceedings - 7th International Congress of Serbian Society of Mechanics
T1  - Pressure field analyses of a low-rise building model surrounded by neighbouring buildings in urban areas
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2111
ER  - 

@conference{
author = "Kostadinović Vranešević, Kristina and Šarkić-Glumac, Anina and Winkelmann, Ulf",
year = "2019",
abstract = "In this paper, pressure field over the roof of low-rise building model has been investigating using numerical simulations. The model is surrounded by four neighboring buildings of the same geometry as the principle one. The wind behavior around the building was simulated at wind angle of 45 degrees. Numerical calculations are performed using open-source code OpenFOAM. - Analysis solver for incompressible flow was applied using the Large Eddy Simulation (LES). The effect of different mesh types and inflow conditions are discussed. Two inlet definitions was implemented, one without prescribed turbulence, with the stream-wise velocity profile from the wind tunnel (WT), and another with the incoming flow turbulence synthetically generated using the divergence-free synthetic eddy method (DFSEM). Numerical results of pressure distributions statistics are analyzed and systematically compared to the referenced experimental data. The results show that there is a significant influence of the inlet definition on the mean and standard deviation of the pressure coefficient.",
publisher = "Serbian Society of Mechanics",
journal = "Proceedings - 7th International Congress of Serbian Society of Mechanics",
title = "Pressure field analyses of a low-rise building model surrounded by neighbouring buildings in urban areas",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2111"
}

Kostadinović Vranešević, K., Šarkić-Glumac, A.,& Winkelmann, U.. (2019). Pressure field analyses of a low-rise building model surrounded by neighbouring buildings in urban areas. in Proceedings - 7th International Congress of Serbian Society of Mechanics
Serbian Society of Mechanics..
https://hdl.handle.net/21.15107/rcub_grafar_2111

Kostadinović Vranešević K, Šarkić-Glumac A, Winkelmann U. Pressure field analyses of a low-rise building model surrounded by neighbouring buildings in urban areas. in Proceedings - 7th International Congress of Serbian Society of Mechanics. 2019;.
https://hdl.handle.net/21.15107/rcub_grafar_2111 .

Kostadinović Vranešević, Kristina, Šarkić-Glumac, Anina, Winkelmann, Ulf, "Pressure field analyses of a low-rise building model surrounded by neighbouring buildings in urban areas" in Proceedings - 7th International Congress of Serbian Society of Mechanics (2019),
https://hdl.handle.net/21.15107/rcub_grafar_2111 .

TY  - CONF
AU  - Lazović Radovanović, Marija
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2984
AB  - The paper presents the experimental testing of the axial capacity and stability of short,
moderately slender and slender circular CFT columns. For the purpose of sample testing a special
set of hydraulic presses was constructed. In order to achieve centric loading of the load, a device
calotte was used. With the help of the dosing and gauges placed at the top of the column, force
and vertical displacement were measured continuously. The test was carried out on two short
columns 0.5 m and 1.0 m long, and four moderately slender and slender columns with a length of
4.0 m with different boundary support conditions. In the short CFT columns the confinement
effect was taken into account as well and loss of bearing capacity occurred due to the steel profile
yield strength. In moderately slender and slender columns, the loss of stability occurs before the
loss of the load capacity of the column. The obtained results of the experimental tests were then
compared with the valid regulations: EC4, ACI, AS and AISC. It can be concluded that EC4
gives the most approximate results to the experiment.
PB  - Serbian Society of Mechanics
C3  - 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019.
T1  - Experimental testing of axial load capacity and stability of circular CFT columns
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2984
ER  - 

@conference{
author = "Lazović Radovanović, Marija",
year = "2019",
abstract = "The paper presents the experimental testing of the axial capacity and stability of short,
moderately slender and slender circular CFT columns. For the purpose of sample testing a special
set of hydraulic presses was constructed. In order to achieve centric loading of the load, a device
calotte was used. With the help of the dosing and gauges placed at the top of the column, force
and vertical displacement were measured continuously. The test was carried out on two short
columns 0.5 m and 1.0 m long, and four moderately slender and slender columns with a length of
4.0 m with different boundary support conditions. In the short CFT columns the confinement
effect was taken into account as well and loss of bearing capacity occurred due to the steel profile
yield strength. In moderately slender and slender columns, the loss of stability occurs before the
loss of the load capacity of the column. The obtained results of the experimental tests were then
compared with the valid regulations: EC4, ACI, AS and AISC. It can be concluded that EC4
gives the most approximate results to the experiment.",
publisher = "Serbian Society of Mechanics",
journal = "7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019.",
title = "Experimental testing of axial load capacity and stability of circular CFT columns",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2984"
}

Lazović Radovanović, M.. (2019). Experimental testing of axial load capacity and stability of circular CFT columns. in 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019.
Serbian Society of Mechanics..
https://hdl.handle.net/21.15107/rcub_grafar_2984

Lazović Radovanović M. Experimental testing of axial load capacity and stability of circular CFT columns. in 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019.. 2019;.
https://hdl.handle.net/21.15107/rcub_grafar_2984 .

Lazović Radovanović, Marija, "Experimental testing of axial load capacity and stability of circular CFT columns" in 7th International Congress of Serbian Society of Mechanics Sremski Karlovci, June 24-26, 2019. (2019),
https://hdl.handle.net/21.15107/rcub_grafar_2984 .

TY  - CONF
AU  - Isaković, Snežana
AU  - Perović, Zoran
AU  - Ćorić, Stanko
AU  - Šumarac, Dragoslav
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2854
AB  - Improving the energy efficiency in buildings in the Republic of Serbia has been recognized as an area with the greatest potential for reducing overall energy consumption. It also has an indirect impact on improving the quality of life and comfort in buildings, protecting the environment and reducing the emission of harmful gases, as well as reducing the cost of heating. Permanent population increase resulted in the urbanization process that had different consequences for the quality of life and a sustainable future. Green roofs in urban areas of developed countries have become a legal obligation and policies and programs that support the greening of roofs are aimed at preserving the environment and ensuring the sustainable development of cities. This paper deals with an analysis of the influence of green roofs on the energy performance of existing buildings in the center of Belgrade. One of the conclusions of this research points out that it is necessary to perform research studies and experimental analyses for the application of green roofs in our climatic conditions. Thus, the research focus should be on legal regulation that would establish calculation and design standards for green roof systems.
PB  - Faculty Of Civil Engineering Subotica
C3  - 7th International Conference Contemporary Achievements in Civil Engineering
T1  - Enhancing energy efficiency by application of green roof in residential building
EP  - 484
SP  - 475
DO  - 10.14415/konferencijaGFS2019.042
ER  - 

@conference{
author = "Isaković, Snežana and Perović, Zoran and Ćorić, Stanko and Šumarac, Dragoslav",
year = "2019",
abstract = "Improving the energy efficiency in buildings in the Republic of Serbia has been recognized as an area with the greatest potential for reducing overall energy consumption. It also has an indirect impact on improving the quality of life and comfort in buildings, protecting the environment and reducing the emission of harmful gases, as well as reducing the cost of heating. Permanent population increase resulted in the urbanization process that had different consequences for the quality of life and a sustainable future. Green roofs in urban areas of developed countries have become a legal obligation and policies and programs that support the greening of roofs are aimed at preserving the environment and ensuring the sustainable development of cities. This paper deals with an analysis of the influence of green roofs on the energy performance of existing buildings in the center of Belgrade. One of the conclusions of this research points out that it is necessary to perform research studies and experimental analyses for the application of green roofs in our climatic conditions. Thus, the research focus should be on legal regulation that would establish calculation and design standards for green roof systems.",
publisher = "Faculty Of Civil Engineering Subotica",
journal = "7th International Conference Contemporary Achievements in Civil Engineering",
title = "Enhancing energy efficiency by application of green roof in residential building",
pages = "484-475",
doi = "10.14415/konferencijaGFS2019.042"
}

Isaković, S., Perović, Z., Ćorić, S.,& Šumarac, D.. (2019). Enhancing energy efficiency by application of green roof in residential building. in 7th International Conference Contemporary Achievements in Civil Engineering
Faculty Of Civil Engineering Subotica., 475-484.
https://doi.org/10.14415/konferencijaGFS2019.042

Isaković S, Perović Z, Ćorić S, Šumarac D. Enhancing energy efficiency by application of green roof in residential building. in 7th International Conference Contemporary Achievements in Civil Engineering. 2019;:475-484.
doi:10.14415/konferencijaGFS2019.042 .

Isaković, Snežana, Perović, Zoran, Ćorić, Stanko, Šumarac, Dragoslav, "Enhancing energy efficiency by application of green roof in residential building" in 7th International Conference Contemporary Achievements in Civil Engineering (2019):475-484,
https://doi.org/10.14415/konferencijaGFS2019.042 . .

TY  - CONF
AU  - Kekanović, Milan
AU  - Šumarac, Dragoslav
AU  - Kozarić, Ljiljana
AU  - Ćorić, Stanko
AU  - Čeh, Arpad
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2853
AB  - The paper contains the authors’ experiences and findings that were yielded as a result of measurements of the thermodynamic properties of traditional renewable materials. As a testament to the quality of existing traditional constructions and construction techniques that are already scattered around the world, we have only grown stronger in our decision to completely dedicate ourselves to the development of new construction systems with the application of traditional materials in their original or partially altered form. To digress a little, climate changes have already resulted in short summer heat waves in Europe and the world. Artificial air conditioners are not a proper solution for the protection of people in housing objects. The only correct and plausible solution is for the walls to provide air-conditioning of the inner space and also the protection of the people which would be done in a completely natural way in accordance with the thermodynamic laws of water vapor exchange which in turn would provide cooling of the walls.
PB  - Faculty Of Civil Engineering Subotica
C3  - 7th International Conference Contemporary Achievements in Civil  Engineering
T1  - Traditional materials as a solution to construction in the new age of climate distrubances
EP  - 585
SP  - 575
DO  - 10.14415/konferencijaGFS2019.053
ER  - 

@conference{
author = "Kekanović, Milan and Šumarac, Dragoslav and Kozarić, Ljiljana and Ćorić, Stanko and Čeh, Arpad",
year = "2019",
abstract = "The paper contains the authors’ experiences and findings that were yielded as a result of measurements of the thermodynamic properties of traditional renewable materials. As a testament to the quality of existing traditional constructions and construction techniques that are already scattered around the world, we have only grown stronger in our decision to completely dedicate ourselves to the development of new construction systems with the application of traditional materials in their original or partially altered form. To digress a little, climate changes have already resulted in short summer heat waves in Europe and the world. Artificial air conditioners are not a proper solution for the protection of people in housing objects. The only correct and plausible solution is for the walls to provide air-conditioning of the inner space and also the protection of the people which would be done in a completely natural way in accordance with the thermodynamic laws of water vapor exchange which in turn would provide cooling of the walls.",
publisher = "Faculty Of Civil Engineering Subotica",
journal = "7th International Conference Contemporary Achievements in Civil  Engineering",
title = "Traditional materials as a solution to construction in the new age of climate distrubances",
pages = "585-575",
doi = "10.14415/konferencijaGFS2019.053"
}

Kekanović, M., Šumarac, D., Kozarić, L., Ćorić, S.,& Čeh, A.. (2019). Traditional materials as a solution to construction in the new age of climate distrubances. in 7th International Conference Contemporary Achievements in Civil  Engineering
Faculty Of Civil Engineering Subotica., 575-585.
https://doi.org/10.14415/konferencijaGFS2019.053

Kekanović M, Šumarac D, Kozarić L, Ćorić S, Čeh A. Traditional materials as a solution to construction in the new age of climate distrubances. in 7th International Conference Contemporary Achievements in Civil  Engineering. 2019;:575-585.
doi:10.14415/konferencijaGFS2019.053 .

Kekanović, Milan, Šumarac, Dragoslav, Kozarić, Ljiljana, Ćorić, Stanko, Čeh, Arpad, "Traditional materials as a solution to construction in the new age of climate distrubances" in 7th International Conference Contemporary Achievements in Civil  Engineering (2019):575-585,
https://doi.org/10.14415/konferencijaGFS2019.053 . .

TY  - CONF
AU  - Kostadinović Vranešević, Kristina
AU  - Gluhović, Nina
AU  - Dobrić, Jelena
AU  - Spremić, Milan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1595
AB  - Thin-walled cylindrical shells represent one of the most complex constructive elements, considering their behaviour and susceptibility to buckling. In this paper is given a brief theoretical review including the presentation of different currently available design recommendations. Influence of initial imperfections on nonlinear behaviour of cylindrical shells is also presented through numerical analysis. Cylindrical shells with different wall thicknesses and different values of initial imperfections, but constant length and diameter of
shell are analysed. Numerical analysis includes materially and geometrically nonlinear analysis of cylindrical shells, using experimentally obtained stress-strain relation of carbonsteel and
stainless steel. Material nonlinearity and initial geometrical imperfections resulted in significantly lower buckling resistance of cylindrical shells.
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 15. kongres, 6-8. septembar 2018, Zlatibor
T1  - Poređenje ponašanja tankih cilndričnih ljuski od ugljeničnog čelika i nerđajućeg čelika
EP  - 528
SP  - 519
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1595
ER  - 

@conference{
author = "Kostadinović Vranešević, Kristina and Gluhović, Nina and Dobrić, Jelena and Spremić, Milan",
year = "2018",
abstract = "Thin-walled cylindrical shells represent one of the most complex constructive elements, considering their behaviour and susceptibility to buckling. In this paper is given a brief theoretical review including the presentation of different currently available design recommendations. Influence of initial imperfections on nonlinear behaviour of cylindrical shells is also presented through numerical analysis. Cylindrical shells with different wall thicknesses and different values of initial imperfections, but constant length and diameter of
shell are analysed. Numerical analysis includes materially and geometrically nonlinear analysis of cylindrical shells, using experimentally obtained stress-strain relation of carbonsteel and
stainless steel. Material nonlinearity and initial geometrical imperfections resulted in significantly lower buckling resistance of cylindrical shells.",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 15. kongres, 6-8. septembar 2018, Zlatibor",
title = "Poređenje ponašanja tankih cilndričnih ljuski od ugljeničnog čelika i nerđajućeg čelika",
pages = "528-519",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1595"
}

Kostadinović Vranešević, K., Gluhović, N., Dobrić, J.,& Spremić, M.. (2018). Poređenje ponašanja tankih cilndričnih ljuski od ugljeničnog čelika i nerđajućeg čelika. in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 15. kongres, 6-8. septembar 2018, Zlatibor
Društvo građevinskih konstruktera Srbije, Beograd., 519-528.
https://hdl.handle.net/21.15107/rcub_grafar_1595

Kostadinović Vranešević K, Gluhović N, Dobrić J, Spremić M. Poređenje ponašanja tankih cilndričnih ljuski od ugljeničnog čelika i nerđajućeg čelika. in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 15. kongres, 6-8. septembar 2018, Zlatibor. 2018;:519-528.
https://hdl.handle.net/21.15107/rcub_grafar_1595 .

Kostadinović Vranešević, Kristina, Gluhović, Nina, Dobrić, Jelena, Spremić, Milan, "Poređenje ponašanja tankih cilndričnih ljuski od ugljeničnog čelika i nerđajućeg čelika" in Zbornik radova sa nacionalnog kongresa DGKS / Društvо građevinskih konstruktera Srbije, 15. kongres, 6-8. septembar 2018, Zlatibor (2018):519-528,
https://hdl.handle.net/21.15107/rcub_grafar_1595 .

TY  - CONF
AU  - Blagojević, Nikola
AU  - Kostić, Svetlana
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3261
AB  - The use of concrete filled steel tubes (CFT columns) in seismically active regions is becoming more common and widespread due to numerous advantages they offer over steel and reinforced concrete columns, such as increased ductility, buckling delay and good cyclic performance. Since the behavior of CFT columns is highly nonlinear, a numerical model needs to consider different nonlinear effects. The model proposed in this paper adopts the nonlinear force based beam/column element that takes into account the nonlinear behavior of steel and concrete, confinement effects and geometrical nonlinearities. Through a parametric study, different material
models for steel and concrete, widely available in commercial software programs, are evaluated and the constitutive model parameters that best approximate the behavior of CFT columns under static loading conditions are determined. This numerical model is then validated through a comparison with a number of experimental tests from the literature. Different types of loading (cyclic static and dynamic), types of structures with different slenderness of tested specimens and B/t ratio are considered. In addition, limitations of the proposed fiber element model for modelling CFT columns are emphasized.
C3  - 16th European Conference on Earthquake Engineering-Thessaloniki, 18 - 21 June, 2018
T1  - Nonlinear Analysis of Square CFT Columns with Fiber Beam/Column Element
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3261
ER  - 

@conference{
author = "Blagojević, Nikola and Kostić, Svetlana",
year = "2018",
abstract = "The use of concrete filled steel tubes (CFT columns) in seismically active regions is becoming more common and widespread due to numerous advantages they offer over steel and reinforced concrete columns, such as increased ductility, buckling delay and good cyclic performance. Since the behavior of CFT columns is highly nonlinear, a numerical model needs to consider different nonlinear effects. The model proposed in this paper adopts the nonlinear force based beam/column element that takes into account the nonlinear behavior of steel and concrete, confinement effects and geometrical nonlinearities. Through a parametric study, different material
models for steel and concrete, widely available in commercial software programs, are evaluated and the constitutive model parameters that best approximate the behavior of CFT columns under static loading conditions are determined. This numerical model is then validated through a comparison with a number of experimental tests from the literature. Different types of loading (cyclic static and dynamic), types of structures with different slenderness of tested specimens and B/t ratio are considered. In addition, limitations of the proposed fiber element model for modelling CFT columns are emphasized.",
journal = "16th European Conference on Earthquake Engineering-Thessaloniki, 18 - 21 June, 2018",
title = "Nonlinear Analysis of Square CFT Columns with Fiber Beam/Column Element",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3261"
}

Blagojević, N.,& Kostić, S.. (2018). Nonlinear Analysis of Square CFT Columns with Fiber Beam/Column Element. in 16th European Conference on Earthquake Engineering-Thessaloniki, 18 - 21 June, 2018.
https://hdl.handle.net/21.15107/rcub_grafar_3261

Blagojević N, Kostić S. Nonlinear Analysis of Square CFT Columns with Fiber Beam/Column Element. in 16th European Conference on Earthquake Engineering-Thessaloniki, 18 - 21 June, 2018. 2018;.
https://hdl.handle.net/21.15107/rcub_grafar_3261 .

Blagojević, Nikola, Kostić, Svetlana, "Nonlinear Analysis of Square CFT Columns with Fiber Beam/Column Element" in 16th European Conference on Earthquake Engineering-Thessaloniki, 18 - 21 June, 2018 (2018),
https://hdl.handle.net/21.15107/rcub_grafar_3261 .

TY  - THES
AU  - Lazović, Marija M.
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5882
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:17825/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=513800594
UR  - http://nardus.mpn.gov.rs/123456789/9602
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1675
AB  - Predmet disertacije je određivanje aksijalne nosivosti i stabilnosti kružnih šupljih čeličnihprofila ispunjenih betonom, u daljem CFT stubovi (eng. Concrete Filled Tubes).Problem istraživanja je određivanje stabilnosti CFT stubova, uzimajući u obzir krutostveze. Ovaj problem se javlja u ''top down'' metodi gradnje, kada se nakon izvođenja šipovau koje su ubetonirani CFT stubovi i tavanice na koti 0.00, vrši iskop ispod izvedenetavanice i izvođenje nadzemnog dela konstrukcije. U takvoj situaciji postavlja se pitanjenosivosti i stabilnosti CFT stubova koji se vezuju sa izvedenim šipovima na osnovu koga sedefiniše moguć iskop i izgradnja nadzemnog dela konstukcije...
PB  - Универзитет у Београду, Грађевински факултет
T2  - Универзитет у Београду
T1  - Nosivost spregnutih stubova od kružnih šupljih čeličnih profila ispunjenih betonom
UR  - https://hdl.handle.net/21.15107/rcub_nardus_9602
ER  - 

@phdthesis{
author = "Lazović, Marija M.",
year = "2018",
abstract = "Predmet disertacije je određivanje aksijalne nosivosti i stabilnosti kružnih šupljih čeličnihprofila ispunjenih betonom, u daljem CFT stubovi (eng. Concrete Filled Tubes).Problem istraživanja je određivanje stabilnosti CFT stubova, uzimajući u obzir krutostveze. Ovaj problem se javlja u ''top down'' metodi gradnje, kada se nakon izvođenja šipovau koje su ubetonirani CFT stubovi i tavanice na koti 0.00, vrši iskop ispod izvedenetavanice i izvođenje nadzemnog dela konstrukcije. U takvoj situaciji postavlja se pitanjenosivosti i stabilnosti CFT stubova koji se vezuju sa izvedenim šipovima na osnovu koga sedefiniše moguć iskop i izgradnja nadzemnog dela konstukcije...",
publisher = "Универзитет у Београду, Грађевински факултет",
journal = "Универзитет у Београду",
title = "Nosivost spregnutih stubova od kružnih šupljih čeličnih profila ispunjenih betonom",
url = "https://hdl.handle.net/21.15107/rcub_nardus_9602"
}

Lazović, M. M.. (2018). Nosivost spregnutih stubova od kružnih šupljih čeličnih profila ispunjenih betonom. in Универзитет у Београду
Универзитет у Београду, Грађевински факултет..
https://hdl.handle.net/21.15107/rcub_nardus_9602

Lazović MM. Nosivost spregnutih stubova od kružnih šupljih čeličnih profila ispunjenih betonom. in Универзитет у Београду. 2018;.
https://hdl.handle.net/21.15107/rcub_nardus_9602 .

Lazović, Marija M., "Nosivost spregnutih stubova od kružnih šupljih čeličnih profila ispunjenih betonom" in Универзитет у Београду (2018),
https://hdl.handle.net/21.15107/rcub_nardus_9602 .

TY  - JOUR
AU  - Lazović, Marija
AU  - Deretić-Stojanović, Biljana
AU  - Radovanović, Janko
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/915
AB  - In this paper, results of experimental investigation of bearing capacity and stability of slender and moderately slender CFT circular tubes are presented. The effects of ratio thickness/ radius of steel cross section and support conditions are investigated. Numerical simulation for the tested examples was performed in computer program ABAQUS. In this simulations, nonlinear constitutive models were used for modelling of concrete, steel and concrete/steel connection. With modified Rick's method critical buckling force for the CFT column was calculated. Verification of the obtained experimental results was performed with comparison with several world standards: EC4, ACI, AS, AISC, as well as with the results obtained in ABAQUS.
AB  - U radu su prikazani program i rezultati eksperimentalnog ispitivanja nosivosti i stabilnosti umereno vitkih i vitkih kružnih CFT stubova. Analiziran je uticaj odnosa prečnika i debljine zida čeličnog profila, kao i uticaj graničnih uslova oslanjanja na vrednost kritične sile izvijanja. Izvršena je i numerička simulacija ispitanih uzoraka primenom metode konačnih elemenata i računarskog programa ABAQUS. U modelu su zadati nelinearni konstitutivni modeli za beton jezgra i konstrukcioni čelik šupljeg profila, kao i veza ova dva elementa. Primenom modifikovane Riks-ove metode sračunata je kritična sila izvijanja CFT stuba. Verifikacija rezultata izvršena je upoređivanjem sopstvenih eksperimentalnih rezultata s važećim pravilnicima: EC4, ACI, AS, AISC, kao i s rezultatima dobijenim primenom računarskog programa ABAQUS.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Calculation of load capacity and stability of moderately slender and slender axial loaded circular CFT columns
T1  - Proračun nosivosti i stabilnosti umereno vitkih i vitkih centrično pritisnutih kružnih CFT stubova
EP  - 72
IS  - 2
SP  - 57
VL  - 61
DO  - 10.5937/grmk1802057l
ER  - 

@article{
author = "Lazović, Marija and Deretić-Stojanović, Biljana and Radovanović, Janko",
year = "2018",
abstract = "In this paper, results of experimental investigation of bearing capacity and stability of slender and moderately slender CFT circular tubes are presented. The effects of ratio thickness/ radius of steel cross section and support conditions are investigated. Numerical simulation for the tested examples was performed in computer program ABAQUS. In this simulations, nonlinear constitutive models were used for modelling of concrete, steel and concrete/steel connection. With modified Rick's method critical buckling force for the CFT column was calculated. Verification of the obtained experimental results was performed with comparison with several world standards: EC4, ACI, AS, AISC, as well as with the results obtained in ABAQUS., U radu su prikazani program i rezultati eksperimentalnog ispitivanja nosivosti i stabilnosti umereno vitkih i vitkih kružnih CFT stubova. Analiziran je uticaj odnosa prečnika i debljine zida čeličnog profila, kao i uticaj graničnih uslova oslanjanja na vrednost kritične sile izvijanja. Izvršena je i numerička simulacija ispitanih uzoraka primenom metode konačnih elemenata i računarskog programa ABAQUS. U modelu su zadati nelinearni konstitutivni modeli za beton jezgra i konstrukcioni čelik šupljeg profila, kao i veza ova dva elementa. Primenom modifikovane Riks-ove metode sračunata je kritična sila izvijanja CFT stuba. Verifikacija rezultata izvršena je upoređivanjem sopstvenih eksperimentalnih rezultata s važećim pravilnicima: EC4, ACI, AS, AISC, kao i s rezultatima dobijenim primenom računarskog programa ABAQUS.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Calculation of load capacity and stability of moderately slender and slender axial loaded circular CFT columns, Proračun nosivosti i stabilnosti umereno vitkih i vitkih centrično pritisnutih kružnih CFT stubova",
pages = "72-57",
number = "2",
volume = "61",
doi = "10.5937/grmk1802057l"
}

Lazović, M., Deretić-Stojanović, B.,& Radovanović, J.. (2018). Calculation of load capacity and stability of moderately slender and slender axial loaded circular CFT columns. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 61(2), 57-72.
https://doi.org/10.5937/grmk1802057l

Lazović M, Deretić-Stojanović B, Radovanović J. Calculation of load capacity and stability of moderately slender and slender axial loaded circular CFT columns. in Građevinski materijali i konstrukcije. 2018;61(2):57-72.
doi:10.5937/grmk1802057l .

Lazović, Marija, Deretić-Stojanović, Biljana, Radovanović, Janko, "Calculation of load capacity and stability of moderately slender and slender axial loaded circular CFT columns" in Građevinski materijali i konstrukcije, 61, no. 2 (2018):57-72,
https://doi.org/10.5937/grmk1802057l . .

TY  - CONF
AU  - Kekanović, Milan
AU  - Šumarac, Dragoslav
AU  - Ćorić, Stanko
AU  - Kasaš, Karolj
AU  - Čeh, Arpad
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1616
AB  - This article provides information about the possibilities and technologies [2] available for the building industry in the Republic of Serbia, and concerns the trends - which expansion is expected in Europe and worldwide - the of use of renewable sources of building materials. Exploitation of sand and gravel from rivers and dry mines in many EU countries is prohibited. Excavation of clay from clay deposits and blasting the rock mass are considered as a violation of the natural environment and resulting with scars on our planet Earth.Renewable sources of construction materials are considered materials which each year can be renewed and which are the most common by-product of agricultural production.Materials obtained by recycling existing materials already used in construction, as well as by-products of industrial production are also considered sustainable materials.Renewable materials are supporting the new, worldwide trend in building industry, called "Green Building" with the aim of reducing harmful CO2 emissions.This paper will discuss renewable materials obtained as a by-product of agricultural production such as grain straw (wheat, barley, rye and oats), cane and hemp shiv obtained by mechanical breakingof hemp stems.These materials are cheap because they are by-products and they are energy efficient, which is particularly important nowadays.The construction of buildings with the above mentioned materials should be well planned to ensure the durability, fire resistance and particularly the pleasant and comfortable stay for the people.The walls made of this material must be solved, and ensured to avoid occurrence of rodents and other pests that may be carriers of dangerous and contagious diseases.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova Građevinskog fakulteta
T1  - Renewable building materials for high energy efficiency construction era
T1  - Obnovljivi izvori građevinskih materijala za novo vreme građenja objekata visoke energetske efikasnosti
EP  - 322
SP  - 313
VL  - 34
DO  - 10.14415/konferencijaGFS2018.031
ER  - 

@conference{
author = "Kekanović, Milan and Šumarac, Dragoslav and Ćorić, Stanko and Kasaš, Karolj and Čeh, Arpad",
year = "2018",
abstract = "This article provides information about the possibilities and technologies [2] available for the building industry in the Republic of Serbia, and concerns the trends - which expansion is expected in Europe and worldwide - the of use of renewable sources of building materials. Exploitation of sand and gravel from rivers and dry mines in many EU countries is prohibited. Excavation of clay from clay deposits and blasting the rock mass are considered as a violation of the natural environment and resulting with scars on our planet Earth.Renewable sources of construction materials are considered materials which each year can be renewed and which are the most common by-product of agricultural production.Materials obtained by recycling existing materials already used in construction, as well as by-products of industrial production are also considered sustainable materials.Renewable materials are supporting the new, worldwide trend in building industry, called "Green Building" with the aim of reducing harmful CO2 emissions.This paper will discuss renewable materials obtained as a by-product of agricultural production such as grain straw (wheat, barley, rye and oats), cane and hemp shiv obtained by mechanical breakingof hemp stems.These materials are cheap because they are by-products and they are energy efficient, which is particularly important nowadays.The construction of buildings with the above mentioned materials should be well planned to ensure the durability, fire resistance and particularly the pleasant and comfortable stay for the people.The walls made of this material must be solved, and ensured to avoid occurrence of rodents and other pests that may be carriers of dangerous and contagious diseases.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova Građevinskog fakulteta",
title = "Renewable building materials for high energy efficiency construction era, Obnovljivi izvori građevinskih materijala za novo vreme građenja objekata visoke energetske efikasnosti",
pages = "322-313",
volume = "34",
doi = "10.14415/konferencijaGFS2018.031"
}

Kekanović, M., Šumarac, D., Ćorić, S., Kasaš, K.,& Čeh, A.. (2018). Renewable building materials for high energy efficiency construction era. in Zbornik radova Građevinskog fakulteta
Građevinski fakultet, Subotica., 34, 313-322.
https://doi.org/10.14415/konferencijaGFS2018.031

Kekanović M, Šumarac D, Ćorić S, Kasaš K, Čeh A. Renewable building materials for high energy efficiency construction era. in Zbornik radova Građevinskog fakulteta. 2018;34:313-322.
doi:10.14415/konferencijaGFS2018.031 .

Kekanović, Milan, Šumarac, Dragoslav, Ćorić, Stanko, Kasaš, Karolj, Čeh, Arpad, "Renewable building materials for high energy efficiency construction era" in Zbornik radova Građevinskog fakulteta, 34 (2018):313-322,
https://doi.org/10.14415/konferencijaGFS2018.031 . .

TY  - CONF
AU  - Blagojević, Nikola
AU  - Kostić, Svetlana M.
AU  - Blagojević, Predrag
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1514
C3  - 5th International Conference Contemporary Achievements in Civil Engineering
T1  - Comparative analysis of reinforced concrete and CFT columns in buildings
EP  - 130
SP  - 121
DO  - 10.14415/konferencijaGFS2017.012
ER  - 

@conference{
author = "Blagojević, Nikola and Kostić, Svetlana M. and Blagojević, Predrag",
year = "2017",
journal = "5th International Conference Contemporary Achievements in Civil Engineering",
title = "Comparative analysis of reinforced concrete and CFT columns in buildings",
pages = "130-121",
doi = "10.14415/konferencijaGFS2017.012"
}

Blagojević, N., Kostić, S. M.,& Blagojević, P.. (2017). Comparative analysis of reinforced concrete and CFT columns in buildings. in 5th International Conference Contemporary Achievements in Civil Engineering, 121-130.
https://doi.org/10.14415/konferencijaGFS2017.012

Blagojević N, Kostić SM, Blagojević P. Comparative analysis of reinforced concrete and CFT columns in buildings. in 5th International Conference Contemporary Achievements in Civil Engineering. 2017;:121-130.
doi:10.14415/konferencijaGFS2017.012 .

Blagojević, Nikola, Kostić, Svetlana M., Blagojević, Predrag, "Comparative analysis of reinforced concrete and CFT columns in buildings" in 5th International Conference Contemporary Achievements in Civil Engineering (2017):121-130,
https://doi.org/10.14415/konferencijaGFS2017.012 . .

TY  - JOUR
AU  - Lazović, Marija
AU  - Radovanović, Janko
AU  - Deretić-Stojanović, Biljana
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/844
AB  - CFT columns are one of the basic structural elements in "top-down" construction method. Because of the large depth of excavation the question of stability of these columns raises. This paper presents a procedure for calculation of critical buckling force of CFT columns which are on the upper side elastically fixed in the concrete ceiling and on the bottom side elastically fixed in the drilled pile. Using computer programs ABAQUS 6.12 and LPILE, as well as appropriate constitutive models the boundary conditions on the upper and lower end of the CFT columns are determined. For a building called "Cvijetni prolaz" in Zagreb, using program created in Excel the critical buckling force of elastically fixed CFT columns is determined. The dependence of the critical buckling force decreasing with increasing depth of excavation is presented. The impact of concrete class, diameter and wall thickness of the steel section, length and diameter of the pile, the thickness of the ceiling on the critical buckling force of CFT columns is analysed. The results are shown in diagrams and tables.
PB  - Strojarski Facultet
T2  - Tehnički vjesnik / Technical Gazette
T1  - Bearing capacity and stability of elastically fixed cft slender columns
EP  - 973
IS  - 3
SP  - 967
VL  - 24
DO  - 10.17559/TV-20150806093823
ER  - 

@article{
author = "Lazović, Marija and Radovanović, Janko and Deretić-Stojanović, Biljana",
year = "2017",
abstract = "CFT columns are one of the basic structural elements in "top-down" construction method. Because of the large depth of excavation the question of stability of these columns raises. This paper presents a procedure for calculation of critical buckling force of CFT columns which are on the upper side elastically fixed in the concrete ceiling and on the bottom side elastically fixed in the drilled pile. Using computer programs ABAQUS 6.12 and LPILE, as well as appropriate constitutive models the boundary conditions on the upper and lower end of the CFT columns are determined. For a building called "Cvijetni prolaz" in Zagreb, using program created in Excel the critical buckling force of elastically fixed CFT columns is determined. The dependence of the critical buckling force decreasing with increasing depth of excavation is presented. The impact of concrete class, diameter and wall thickness of the steel section, length and diameter of the pile, the thickness of the ceiling on the critical buckling force of CFT columns is analysed. The results are shown in diagrams and tables.",
publisher = "Strojarski Facultet",
journal = "Tehnički vjesnik / Technical Gazette",
title = "Bearing capacity and stability of elastically fixed cft slender columns",
pages = "973-967",
number = "3",
volume = "24",
doi = "10.17559/TV-20150806093823"
}

Lazović, M., Radovanović, J.,& Deretić-Stojanović, B.. (2017). Bearing capacity and stability of elastically fixed cft slender columns. in Tehnički vjesnik / Technical Gazette
Strojarski Facultet., 24(3), 967-973.
https://doi.org/10.17559/TV-20150806093823

Lazović M, Radovanović J, Deretić-Stojanović B. Bearing capacity and stability of elastically fixed cft slender columns. in Tehnički vjesnik / Technical Gazette. 2017;24(3):967-973.
doi:10.17559/TV-20150806093823 .

Lazović, Marija, Radovanović, Janko, Deretić-Stojanović, Biljana, "Bearing capacity and stability of elastically fixed cft slender columns" in Tehnički vjesnik / Technical Gazette, 24, no. 3 (2017):967-973,
https://doi.org/10.17559/TV-20150806093823 . .

TY  - CONF
AU  - Kekanović, Milan
AU  - Šumarac, Dragoslav
AU  - Ćorić, Stanko
AU  - Kasaš, Karolj
AU  - Čeh, Arpad
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1546
AB  - This article provides information about the possibilities of design and construction floor slabs concerning three very important aspects: the capacity, safety and energy efficiency.Nowadays, in the Republic of Serbia exclusively solid concrete slabs are designed and built,which are at least 20cm thick.The justification for this solution is to obtain, in its plane, a rigid plate-diaphragm that is able to endure seismic forces on the walls, proportionally to the stiffness of those walls.At the same time this solution has many disadvantages and it is a great load that limits the length of the span. That heavy load is directly proportional to the size of the seismic forces. The20 cm thick, solid concrete slab has a large heat capacity, and specific heat c (J / kgK), which are not energy efficient,as the warm air is accumulated, conductedtowards to the walls and also retained near the ceiling, while people are near the floor.There are other solutions of design and construction floor slabs that meet demands far more than a solid concrete slab.These are the reinforced concrete site-cast waffle slab.These slabs are extremely stiff and stable, optionally in both directions and can have a reduced mass up to 50% compared with solid concrete slabs.The authors will introduce one waffle-slab solution of reinforced concrete slabs, which satisfies, in addition to above mentioned, even the energy efficiency demand. It is a solution by Stirofert-technology built with structural expanded polystyrene as a stay-in-place formwork during the phase of concrete pouring and construction. This same stay-in-place formwork is a powerful insulation on ceiling with a preventing effect against heat-accumulation and heat losses towards the walls; same time equalizing the temperature of air near the floor and ceiling.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
T1  - Problems of floor slab design in terms of capacity, safety and energy efficiency
T1  - Problematika projektovanja međuspratnih ploča sa aspekta nosivosti, sigurnosti i energetske efikasnosti
EP  - 738
SP  - 729
VL  - 33
DO  - 10.14415/konferencijaGFS2017.077
ER  - 

@conference{
author = "Kekanović, Milan and Šumarac, Dragoslav and Ćorić, Stanko and Kasaš, Karolj and Čeh, Arpad",
year = "2017",
abstract = "This article provides information about the possibilities of design and construction floor slabs concerning three very important aspects: the capacity, safety and energy efficiency.Nowadays, in the Republic of Serbia exclusively solid concrete slabs are designed and built,which are at least 20cm thick.The justification for this solution is to obtain, in its plane, a rigid plate-diaphragm that is able to endure seismic forces on the walls, proportionally to the stiffness of those walls.At the same time this solution has many disadvantages and it is a great load that limits the length of the span. That heavy load is directly proportional to the size of the seismic forces. The20 cm thick, solid concrete slab has a large heat capacity, and specific heat c (J / kgK), which are not energy efficient,as the warm air is accumulated, conductedtowards to the walls and also retained near the ceiling, while people are near the floor.There are other solutions of design and construction floor slabs that meet demands far more than a solid concrete slab.These are the reinforced concrete site-cast waffle slab.These slabs are extremely stiff and stable, optionally in both directions and can have a reduced mass up to 50% compared with solid concrete slabs.The authors will introduce one waffle-slab solution of reinforced concrete slabs, which satisfies, in addition to above mentioned, even the energy efficiency demand. It is a solution by Stirofert-technology built with structural expanded polystyrene as a stay-in-place formwork during the phase of concrete pouring and construction. This same stay-in-place formwork is a powerful insulation on ceiling with a preventing effect against heat-accumulation and heat losses towards the walls; same time equalizing the temperature of air near the floor and ceiling.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017",
title = "Problems of floor slab design in terms of capacity, safety and energy efficiency, Problematika projektovanja međuspratnih ploča sa aspekta nosivosti, sigurnosti i energetske efikasnosti",
pages = "738-729",
volume = "33",
doi = "10.14415/konferencijaGFS2017.077"
}

Kekanović, M., Šumarac, D., Ćorić, S., Kasaš, K.,& Čeh, A.. (2017). Problems of floor slab design in terms of capacity, safety and energy efficiency. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
Građevinski fakultet, Subotica., 33, 729-738.
https://doi.org/10.14415/konferencijaGFS2017.077

Kekanović M, Šumarac D, Ćorić S, Kasaš K, Čeh A. Problems of floor slab design in terms of capacity, safety and energy efficiency. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017. 2017;33:729-738.
doi:10.14415/konferencijaGFS2017.077 .

Kekanović, Milan, Šumarac, Dragoslav, Ćorić, Stanko, Kasaš, Karolj, Čeh, Arpad, "Problems of floor slab design in terms of capacity, safety and energy efficiency" in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017, 33 (2017):729-738,
https://doi.org/10.14415/konferencijaGFS2017.077 . .

TY  - JOUR
AU  - Susić, Zoran
AU  - Batilović, Mehmed
AU  - Ninkov, Tosa
AU  - Bulatović, Vladimir
AU  - Aleksić, Ivan R.
AU  - Nikolić, Gojko
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/872
AB  - The deformation measurements are performed for the purpose of obtaining information concerning ground movement and objects on the ground within given time intervals. For the purpose of improving conventional models of deformation analysis (CDA) it is desirable to use several different methods and also implement alternative procedures as a further improvement, such as the concept of robust geodetic networks and strain analysis, aimed at obtaining objective information about the movements. In the present paper, in addition to the CDA methods, we also analyze the robust methods in deformation detecting and the method of the strain analysis based on elasticity theory as a supplement to the conventional geometric deformation methods (CDA). The mentioned methods are applied and analysed for the case of a test example of Fruska Gora in Serbia, for which there exist geological and geophysical studies of recent tectonic movements. The measuring results for two measuring epochs concern the GNSS vectors measured by applying the fast static method within closed polygons over a ten-year interval, where only the horizontal movement component is analysed. The efficiency of the applied CDA and robust methods is measured by applying a mean success rate (MSR) by applying Monte Carlo simulations in order to investigate the efficiency of a given methods for a given control network.
PB  - Academy of Sciences of the Czech Republic,
T2  - Acta Geodynamica Et Geomaterialia
T1  - Geometric deformation analysis in free geodetic networks: case study for Fruska Gora in Serbia
EP  - 355
IS  - 3
SP  - 341
VL  - 14
DO  - 10.13168/AGG.2017.0017
ER  - 

@article{
author = "Susić, Zoran and Batilović, Mehmed and Ninkov, Tosa and Bulatović, Vladimir and Aleksić, Ivan R. and Nikolić, Gojko",
year = "2017",
abstract = "The deformation measurements are performed for the purpose of obtaining information concerning ground movement and objects on the ground within given time intervals. For the purpose of improving conventional models of deformation analysis (CDA) it is desirable to use several different methods and also implement alternative procedures as a further improvement, such as the concept of robust geodetic networks and strain analysis, aimed at obtaining objective information about the movements. In the present paper, in addition to the CDA methods, we also analyze the robust methods in deformation detecting and the method of the strain analysis based on elasticity theory as a supplement to the conventional geometric deformation methods (CDA). The mentioned methods are applied and analysed for the case of a test example of Fruska Gora in Serbia, for which there exist geological and geophysical studies of recent tectonic movements. The measuring results for two measuring epochs concern the GNSS vectors measured by applying the fast static method within closed polygons over a ten-year interval, where only the horizontal movement component is analysed. The efficiency of the applied CDA and robust methods is measured by applying a mean success rate (MSR) by applying Monte Carlo simulations in order to investigate the efficiency of a given methods for a given control network.",
publisher = "Academy of Sciences of the Czech Republic,",
journal = "Acta Geodynamica Et Geomaterialia",
title = "Geometric deformation analysis in free geodetic networks: case study for Fruska Gora in Serbia",
pages = "355-341",
number = "3",
volume = "14",
doi = "10.13168/AGG.2017.0017"
}

Susić, Z., Batilović, M., Ninkov, T., Bulatović, V., Aleksić, I. R.,& Nikolić, G.. (2017). Geometric deformation analysis in free geodetic networks: case study for Fruska Gora in Serbia. in Acta Geodynamica Et Geomaterialia
Academy of Sciences of the Czech Republic,., 14(3), 341-355.
https://doi.org/10.13168/AGG.2017.0017

Susić Z, Batilović M, Ninkov T, Bulatović V, Aleksić IR, Nikolić G. Geometric deformation analysis in free geodetic networks: case study for Fruska Gora in Serbia. in Acta Geodynamica Et Geomaterialia. 2017;14(3):341-355.
doi:10.13168/AGG.2017.0017 .

Susić, Zoran, Batilović, Mehmed, Ninkov, Tosa, Bulatović, Vladimir, Aleksić, Ivan R., Nikolić, Gojko, "Geometric deformation analysis in free geodetic networks: case study for Fruska Gora in Serbia" in Acta Geodynamica Et Geomaterialia, 14, no. 3 (2017):341-355,
https://doi.org/10.13168/AGG.2017.0017 . .

TY  - THES
AU  - Kolarević, Nevenka
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=4926
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:15424/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=513748370
UR  - http://nardus.mpn.gov.rs/123456789/8040
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1672
AB  - Метод динамичке крутости (МДК) представља алтернативу методуконачних елемената (МКЕ) у анализи вибрација и избочавањаконструкција. Основни елемент у МДК је континуални елемент, односноњегова матрица крутости, која је формулисана на основу тачног решењадиференцијалне једначине проблема, па је самим тим избегнута потребаза дискретизацијом домена. Да би МДК могао да нађе ширу примену,потребна је одговарајућа база континуалних елемената. У оквирудисертације су по први пут формулисани континуални елементи заанализу вибрација Mindlin-ове правоугаоне плоче и сегмента кружнецилиндричне љуске по Donnell-Mushtari-евој и Flügge-овој теорији. Зарешење проблема слободних вибрација коришћен је Gorman-ов методсуперпозиције, док је динамика матрица крутости формулисана помоћуметода пројекције. Такође, на основу решења у затвореном обликуформулисани су следећи континуални елементи, односно одговарајућематрице крутости, за анализу вибрација и избочавања: Maurice Lévy-евеплоче по Mindlin-овој теорији, кружне цилиндричне љуске и сегментакружне цилиндричне љуске са специјалним граничним условима поDonnell-Mushtari-евој и Flügge-овој теорији. Изведене матрице крутости суимплементиране у за ту сврху написани Matlab програм за анализувибрација и избочавања система плоча и љуски. Резултати многобројнихнумеричких примера су упоређени са доступним резултатима излитературе, као и резултатима МКЕ, чиме је извршена верификација ураду формулисаних континуалних елемената.
AB  - Dynamic stiffness method (DSM) is an alternative to the Finite element method(FEM) in the vibration and buckling analysis. The essential element in the DSMis a continuous element and the corresponding stiffness matrix. The stiffnessmatrix is formulated based on the exact solution of the governing equations.Consequently, the discretization of the domain is minimized. For a widerapplication of the DSM, a suitable base of the continuous elements is necessary.Within this thesis, the continuous elements and the corresponding dynamicstiffness matrices for vibration analysis of the Mindlin plate and segment ofcircular cylindrical shells based on the Donnell-Mushtari and Flügge theory areformulated for the first time. Gorman's method of superposition has been used forsolution of the free vibrations problem, while the dynamic stiffness matrix isformulated by using the Projection method. In addition, based on the closed-formsolutions of the of free vibration and buckling problem, the followingcontinuous elements are formulated: Maurice Lévy plate element based on theMindlin theory, circular cylindrical shell and segmented circular cylindricalshell with special boundary conditions element based on the Donnell-Mushtariand Flügge theory. The developed stiffness matrices are implemented in theMatlab program for the vibration and buckling analysis of plates and shellsassemblies. The results of numerous numerical examples are compared with theavailable results in the literature, as well as with the results obtained using theFEM , and, in such way, the formulated continuous elements are verified.
PB  - Универзитет у Београду, Грађевински факултет
T2  - Универзитет у Београду
T1  - Вибрације и избочавањe плоча и љуски применом методе динамичке крутости
UR  - https://hdl.handle.net/21.15107/rcub_nardus_8040
ER  - 

@phdthesis{
author = "Kolarević, Nevenka",
year = "2016",
abstract = "Метод динамичке крутости (МДК) представља алтернативу методуконачних елемената (МКЕ) у анализи вибрација и избочавањаконструкција. Основни елемент у МДК је континуални елемент, односноњегова матрица крутости, која је формулисана на основу тачног решењадиференцијалне једначине проблема, па је самим тим избегнута потребаза дискретизацијом домена. Да би МДК могао да нађе ширу примену,потребна је одговарајућа база континуалних елемената. У оквирудисертације су по први пут формулисани континуални елементи заанализу вибрација Mindlin-ове правоугаоне плоче и сегмента кружнецилиндричне љуске по Donnell-Mushtari-евој и Flügge-овој теорији. Зарешење проблема слободних вибрација коришћен је Gorman-ов методсуперпозиције, док је динамика матрица крутости формулисана помоћуметода пројекције. Такође, на основу решења у затвореном обликуформулисани су следећи континуални елементи, односно одговарајућематрице крутости, за анализу вибрација и избочавања: Maurice Lévy-евеплоче по Mindlin-овој теорији, кружне цилиндричне љуске и сегментакружне цилиндричне љуске са специјалним граничним условима поDonnell-Mushtari-евој и Flügge-овој теорији. Изведене матрице крутости суимплементиране у за ту сврху написани Matlab програм за анализувибрација и избочавања система плоча и љуски. Резултати многобројнихнумеричких примера су упоређени са доступним резултатима излитературе, као и резултатима МКЕ, чиме је извршена верификација ураду формулисаних континуалних елемената., Dynamic stiffness method (DSM) is an alternative to the Finite element method(FEM) in the vibration and buckling analysis. The essential element in the DSMis a continuous element and the corresponding stiffness matrix. The stiffnessmatrix is formulated based on the exact solution of the governing equations.Consequently, the discretization of the domain is minimized. For a widerapplication of the DSM, a suitable base of the continuous elements is necessary.Within this thesis, the continuous elements and the corresponding dynamicstiffness matrices for vibration analysis of the Mindlin plate and segment ofcircular cylindrical shells based on the Donnell-Mushtari and Flügge theory areformulated for the first time. Gorman's method of superposition has been used forsolution of the free vibrations problem, while the dynamic stiffness matrix isformulated by using the Projection method. In addition, based on the closed-formsolutions of the of free vibration and buckling problem, the followingcontinuous elements are formulated: Maurice Lévy plate element based on theMindlin theory, circular cylindrical shell and segmented circular cylindricalshell with special boundary conditions element based on the Donnell-Mushtariand Flügge theory. The developed stiffness matrices are implemented in theMatlab program for the vibration and buckling analysis of plates and shellsassemblies. The results of numerous numerical examples are compared with theavailable results in the literature, as well as with the results obtained using theFEM , and, in such way, the formulated continuous elements are verified.",
publisher = "Универзитет у Београду, Грађевински факултет",
journal = "Универзитет у Београду",
title = "Вибрације и избочавањe плоча и љуски применом методе динамичке крутости",
url = "https://hdl.handle.net/21.15107/rcub_nardus_8040"
}

Kolarević, N.. (2016). Вибрације и избочавањe плоча и љуски применом методе динамичке крутости. in Универзитет у Београду
Универзитет у Београду, Грађевински факултет..
https://hdl.handle.net/21.15107/rcub_nardus_8040

Kolarević N. Вибрације и избочавањe плоча и љуски применом методе динамичке крутости. in Универзитет у Београду. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_8040 .

Kolarević, Nevenka, "Вибрације и избочавањe плоча и љуски применом методе динамичке крутости" in Универзитет у Београду (2016),
https://hdl.handle.net/21.15107/rcub_nardus_8040 .

TY  - JOUR
AU  - Kostić, Svetlana M.
AU  - Filippou, Filip C.
AU  - Deretić-Stojanović, Biljana
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/772
AB  - This paper presents a nonlinear 3d concentrated plasticity beam column element for the analysis of RCFT columns. The element consists of a linear elastic component with a plastic hinge at each end whose inelastic response is described by extending the concept of generalized plasticity to stress resultants. With independent yield and limit surfaces it is possible to describe the gradual yielding of composite sections and their post-yield hardening behavior. The geometric nonlinearity under large displacements is accounted for with the corotational formulation. The paper discusses the calibration of the model parameters and assesses the accuracy of the model through correlation studies.
PB  - Elsevier Ltd
T2  - Computers & Structures
T1  - Generalized plasticity model for inelastic RCFT column response
EP  - 67
SP  - 56
VL  - 168
DO  - 10.1016/j.compstruc.2016.02.006
ER  - 

@article{
author = "Kostić, Svetlana M. and Filippou, Filip C. and Deretić-Stojanović, Biljana",
year = "2016",
abstract = "This paper presents a nonlinear 3d concentrated plasticity beam column element for the analysis of RCFT columns. The element consists of a linear elastic component with a plastic hinge at each end whose inelastic response is described by extending the concept of generalized plasticity to stress resultants. With independent yield and limit surfaces it is possible to describe the gradual yielding of composite sections and their post-yield hardening behavior. The geometric nonlinearity under large displacements is accounted for with the corotational formulation. The paper discusses the calibration of the model parameters and assesses the accuracy of the model through correlation studies.",
publisher = "Elsevier Ltd",
journal = "Computers & Structures",
title = "Generalized plasticity model for inelastic RCFT column response",
pages = "67-56",
volume = "168",
doi = "10.1016/j.compstruc.2016.02.006"
}

Kostić, S. M., Filippou, F. C.,& Deretić-Stojanović, B.. (2016). Generalized plasticity model for inelastic RCFT column response. in Computers & Structures
Elsevier Ltd., 168, 56-67.
https://doi.org/10.1016/j.compstruc.2016.02.006

Kostić SM, Filippou FC, Deretić-Stojanović B. Generalized plasticity model for inelastic RCFT column response. in Computers & Structures. 2016;168:56-67.
doi:10.1016/j.compstruc.2016.02.006 .

Kostić, Svetlana M., Filippou, Filip C., Deretić-Stojanović, Biljana, "Generalized plasticity model for inelastic RCFT column response" in Computers & Structures, 168 (2016):56-67,
https://doi.org/10.1016/j.compstruc.2016.02.006 . .

TY  - CONF
AU  - Ćorić, Stanko
AU  - Perović, Zoran
AU  - Šumarac, Dragoslav
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1485
AB  - Although there are a large number of buildings with high energy consumption in Serbia, there is a possibility to reduce it by investing in renovation of such buildings. Windows and doors, which are part of thermal envelope of building, play a very important role in the overall energy efficiency of the building. In this paper, some aspects of reducing energy consumption of buildings in urban area are presented through renovation project and experimental measurements. The results of increased energy efficiency of one public building, obtained by changing doors and windows only, are given. Experimental measurements by thermovision camera in several residential buildings are shown in this paper. These measurements indicate importance of installing adequate windows as part of thermal envelope of buildings. In addition, corresponding data, from overall state of energy efficiency of buildings in Serbia, is presented.
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 4. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
T1  - Improvement of energy efficiency of buildings in urban areas
EP  - 880
SP  - 873
DO  - 10.14415/konferencijaGFS
ER  - 

@conference{
author = "Ćorić, Stanko and Perović, Zoran and Šumarac, Dragoslav",
year = "2016",
abstract = "Although there are a large number of buildings with high energy consumption in Serbia, there is a possibility to reduce it by investing in renovation of such buildings. Windows and doors, which are part of thermal envelope of building, play a very important role in the overall energy efficiency of the building. In this paper, some aspects of reducing energy consumption of buildings in urban area are presented through renovation project and experimental measurements. The results of increased energy efficiency of one public building, obtained by changing doors and windows only, are given. Experimental measurements by thermovision camera in several residential buildings are shown in this paper. These measurements indicate importance of installing adequate windows as part of thermal envelope of buildings. In addition, corresponding data, from overall state of energy efficiency of buildings in Serbia, is presented.",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 4. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2016",
title = "Improvement of energy efficiency of buildings in urban areas",
pages = "880-873",
doi = "10.14415/konferencijaGFS"
}

Ćorić, S., Perović, Z.,& Šumarac, D.. (2016). Improvement of energy efficiency of buildings in urban areas. in Zbornik radova 4. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
Građevinski fakultet, Subotica., 873-880.
https://doi.org/10.14415/konferencijaGFS

Ćorić S, Perović Z, Šumarac D. Improvement of energy efficiency of buildings in urban areas. in Zbornik radova 4. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2016. 2016;:873-880.
doi:10.14415/konferencijaGFS .

Ćorić, Stanko, Perović, Zoran, Šumarac, Dragoslav, "Improvement of energy efficiency of buildings in urban areas" in Zbornik radova 4. Međunarodne konferencije Savremena dostignuća u građevinarstvu 2016 (2016):873-880,
https://doi.org/10.14415/konferencijaGFS . .