Ninić, Bojana

Link to this page

Authority KeyName Variants
56c4dd48-e548-4945-943e-53f185284d71
  • Ninić, Bojana (4)
Projects

Author's Bibliography

P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures

Dobrić, Jelena; Spremić, Milan; Marković, Zlatko; Ninić, Bojana; Milovanović, Jovana

(2017)

TY  - JOUR
AU  - Dobrić, Jelena
AU  - Spremić, Milan
AU  - Marković, Zlatko
AU  - Ninić, Bojana
AU  - Milovanović, Jovana
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1575
AB  - Although all metals lose strength and stiffness when they are exposed to fire, the reduction of mechanical properties considerably varies between different metals. In contrast to carbon steel, austenitic stainless steel has better response at elevated temperatures due to relatively high content of alloying elements. The type of metallurgical microstructure crucially affected on material response and global behaviour of structural elements under fire conditions. Despite the fact that carbon steel and stainless steel have different constitutive patterns, EN 1993‐1‐2 states that resistance of structural elements made from these materials should be checked using the same fire design procedure. This paper presents numerical analysis of buckling resistance of compressed members exposed to fire, without fire protection. Finite element analysis is conducted using the ABAQUS software. The study points out the structural performance of columns made of stainless steel cold‐formed hollow section and hot‐rolled I‐section in grade 1.4301 and identical columns from carbon steel grade S235 at high temperatures. Sensitivity to initial imperfections is also assessed. The thermal and mechanical properties of carbon and stainless steel are taken from EN 1993–1‐2. Development of temperature into the columns in fire condition is obtained from standard fire curve, according to ISO834. The numerical predictions of buckling response are compared with results of design procedure according to Eurocodes EN 1991–1‐2 and EN 1993–1‐2. The aim of this paper is estimation of acceptability and accuracy level of the mentioned design guidelines in the treatment of buckling phenomena of stainless and carbon steel structural elements at elevated temperatures.
T2  - ce/papers
T1  - P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures
EP  - 4721
IS  - 2-3
SP  - 4712
VL  - 1
DO  - 10.1002/cepa.533
ER  - 
@article{
author = "Dobrić, Jelena and Spremić, Milan and Marković, Zlatko and Ninić, Bojana and Milovanović, Jovana",
year = "2017",
abstract = "Although all metals lose strength and stiffness when they are exposed to fire, the reduction of mechanical properties considerably varies between different metals. In contrast to carbon steel, austenitic stainless steel has better response at elevated temperatures due to relatively high content of alloying elements. The type of metallurgical microstructure crucially affected on material response and global behaviour of structural elements under fire conditions. Despite the fact that carbon steel and stainless steel have different constitutive patterns, EN 1993‐1‐2 states that resistance of structural elements made from these materials should be checked using the same fire design procedure. This paper presents numerical analysis of buckling resistance of compressed members exposed to fire, without fire protection. Finite element analysis is conducted using the ABAQUS software. The study points out the structural performance of columns made of stainless steel cold‐formed hollow section and hot‐rolled I‐section in grade 1.4301 and identical columns from carbon steel grade S235 at high temperatures. Sensitivity to initial imperfections is also assessed. The thermal and mechanical properties of carbon and stainless steel are taken from EN 1993–1‐2. Development of temperature into the columns in fire condition is obtained from standard fire curve, according to ISO834. The numerical predictions of buckling response are compared with results of design procedure according to Eurocodes EN 1991–1‐2 and EN 1993–1‐2. The aim of this paper is estimation of acceptability and accuracy level of the mentioned design guidelines in the treatment of buckling phenomena of stainless and carbon steel structural elements at elevated temperatures.",
journal = "ce/papers",
title = "P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures",
pages = "4721-4712",
number = "2-3",
volume = "1",
doi = "10.1002/cepa.533"
}
Dobrić, J., Spremić, M., Marković, Z., Ninić, B.,& Milovanović, J.. (2017). P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures. in ce/papers, 1(2-3), 4712-4721.
https://doi.org/10.1002/cepa.533
Dobrić J, Spremić M, Marković Z, Ninić B, Milovanović J. P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures. in ce/papers. 2017;1(2-3):4712-4721.
doi:10.1002/cepa.533 .
Dobrić, Jelena, Spremić, Milan, Marković, Zlatko, Ninić, Bojana, Milovanović, Jovana, "P10.01: Comparative numerical buckling analysis: Of compressed carbon and stainless steel members at elevated temperatures" in ce/papers, 1, no. 2-3 (2017):4712-4721,
https://doi.org/10.1002/cepa.533 . .

Estimation of temperature transfer function in facade wall heat transport

Petojević, Zorana; Mitković, Predrag; Mirković, Nikola; Milovanović, Jovana; Ninić, Bojana; Mirković, Milica; Šumarac, Dragoslav; Gospavić, Radovan; Todorović, Goran

(Građevinski fakultet, Subotica, 2017)

TY  - CONF
AU  - Petojević, Zorana
AU  - Mitković, Predrag
AU  - Mirković, Nikola
AU  - Milovanović, Jovana
AU  - Ninić, Bojana
AU  - Mirković, Milica
AU  - Šumarac, Dragoslav
AU  - Gospavić, Radovan
AU  - Todorović, Goran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1531
PB  - Građevinski fakultet, Subotica
C3  - Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
T1  - Estimation of temperature transfer function in facade wall heat transport
T1  - Određivanje transfer funkcije temperature pri prolasku toplote kroz fasadni zid
EP  - 748
SP  - 739
VL  - 33
DO  - 10.14415/konferencijaGFS2017.078
ER  - 
@conference{
author = "Petojević, Zorana and Mitković, Predrag and Mirković, Nikola and Milovanović, Jovana and Ninić, Bojana and Mirković, Milica and Šumarac, Dragoslav and Gospavić, Radovan and Todorović, Goran",
year = "2017",
publisher = "Građevinski fakultet, Subotica",
journal = "Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017",
title = "Estimation of temperature transfer function in facade wall heat transport, Određivanje transfer funkcije temperature pri prolasku toplote kroz fasadni zid",
pages = "748-739",
volume = "33",
doi = "10.14415/konferencijaGFS2017.078"
}
Petojević, Z., Mitković, P., Mirković, N., Milovanović, J., Ninić, B., Mirković, M., Šumarac, D., Gospavić, R.,& Todorović, G.. (2017). Estimation of temperature transfer function in facade wall heat transport. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017
Građevinski fakultet, Subotica., 33, 739-748.
https://doi.org/10.14415/konferencijaGFS2017.078
Petojević Z, Mitković P, Mirković N, Milovanović J, Ninić B, Mirković M, Šumarac D, Gospavić R, Todorović G. Estimation of temperature transfer function in facade wall heat transport. in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017. 2017;33:739-748.
doi:10.14415/konferencijaGFS2017.078 .
Petojević, Zorana, Mitković, Predrag, Mirković, Nikola, Milovanović, Jovana, Ninić, Bojana, Mirković, Milica, Šumarac, Dragoslav, Gospavić, Radovan, Todorović, Goran, "Estimation of temperature transfer function in facade wall heat transport" in Zbornik radova 5. međunarodne konferencije Savremena dostignuća u građevinarstvu 2017, 33 (2017):739-748,
https://doi.org/10.14415/konferencijaGFS2017.078 . .

Composite structural members in fire conditions and measures of protection

Mirković, Nikola; Mitković, Predrag; Ninić, Bojana; Milovanović, Jovana; Mirković, Milica; Petojević, Zorana; Šumarac, Dragoslav; Gospavić, Radovan; Todorović, Goran

(Građevinski fakultet, Subotica, 2017)

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

Požarna otpornost spregnutih stubova prema Evrokodu

Milovanović, J.; Ninić, Bojana; Spremić, Milan; Marković, Zlatko

(Društvo građevinskih konstruktera Srbije, Beograd, 2016)

TY  - CONF
AU  - Milovanović, J.
AU  - Ninić, Bojana
AU  - Spremić, Milan
AU  - Marković, Zlatko
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1447
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
T1  - Požarna otpornost spregnutih stubova prema Evrokodu
EP  - 488
SP  - 479
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1447
ER  - 
@conference{
author = "Milovanović, J. and Ninić, Bojana and Spremić, Milan and Marković, Zlatko",
year = "2016",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor",
title = "Požarna otpornost spregnutih stubova prema Evrokodu",
pages = "488-479",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1447"
}
Milovanović, J., Ninić, B., Spremić, M.,& Marković, Z.. (2016). Požarna otpornost spregnutih stubova prema Evrokodu. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
Društvo građevinskih konstruktera Srbije, Beograd., 479-488.
https://hdl.handle.net/21.15107/rcub_grafar_1447
Milovanović J, Ninić B, Spremić M, Marković Z. Požarna otpornost spregnutih stubova prema Evrokodu. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor. 2016;:479-488.
https://hdl.handle.net/21.15107/rcub_grafar_1447 .
Milovanović, J., Ninić, Bojana, Spremić, Milan, Marković, Zlatko, "Požarna otpornost spregnutih stubova prema Evrokodu" in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor (2016):479-488,
https://hdl.handle.net/21.15107/rcub_grafar_1447 .