Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation

Fire in steel bridges can be a significant hazard; however, no provisions are specified for fire resistance of bridge structural members in current codes and standards. This paper presents results from numerical analysis on the response of steel bridge girders under fire conditions. A finite element...

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Main Author: Esam M. Aziz
Format: Article
Language:English
Published: Sulaimani Polytechnic University 2017-08-01
Series:Kurdistan Journal of Applied Research
Subjects:
Online Access:http://kjar.spu.edu.iq/index.php/kjar/article/view/94
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author Esam M. Aziz
author_facet Esam M. Aziz
author_sort Esam M. Aziz
collection DOAJ
description Fire in steel bridges can be a significant hazard; however, no provisions are specified for fire resistance of bridge structural members in current codes and standards. This paper presents results from numerical analysis on the response of steel bridge girders under fire conditions. A finite element model is developed to evaluate the fire resistance of typical steel girders in bridges using fire insulation with different configurations and thicknesses. The first configuration comprised of applying fire insulation on the web plate of the steel girder, while in the second configuration, the steel section is insulated. Results from numerical analysis indicate that fire resistance and failure mode in steel bridge girders is highly influenced by the insulation configuration and thickness. Applying 25.4mm fire insulation on web plate of steel bridge can increase the fire resistance up to 53 minutes, while applying same insulation thickness on steel section can result in 110 minutes fire resistance.
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spelling doaj.art-546fe481e20b4aecb8c8b6827b6b7c4c2022-12-21T18:44:12ZengSulaimani Polytechnic UniversityKurdistan Journal of Applied Research2411-76842411-77062017-08-012331531910.24017/science.2017.3.2594Enhancing Fire Resistance of Steel Bridge Girders Using External Fire InsulationEsam M. Aziz0Department of City Planning, Technical College of Engineering, Sulaimani Polytechnic University, Sulaimani, IraqFire in steel bridges can be a significant hazard; however, no provisions are specified for fire resistance of bridge structural members in current codes and standards. This paper presents results from numerical analysis on the response of steel bridge girders under fire conditions. A finite element model is developed to evaluate the fire resistance of typical steel girders in bridges using fire insulation with different configurations and thicknesses. The first configuration comprised of applying fire insulation on the web plate of the steel girder, while in the second configuration, the steel section is insulated. Results from numerical analysis indicate that fire resistance and failure mode in steel bridge girders is highly influenced by the insulation configuration and thickness. Applying 25.4mm fire insulation on web plate of steel bridge can increase the fire resistance up to 53 minutes, while applying same insulation thickness on steel section can result in 110 minutes fire resistance.http://kjar.spu.edu.iq/index.php/kjar/article/view/94Bridge fires, fire resistance, steel bridge girders, finite element analysis.
spellingShingle Esam M. Aziz
Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
Kurdistan Journal of Applied Research
Bridge fires, fire resistance, steel bridge girders, finite element analysis.
title Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
title_full Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
title_fullStr Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
title_full_unstemmed Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
title_short Enhancing Fire Resistance of Steel Bridge Girders Using External Fire Insulation
title_sort enhancing fire resistance of steel bridge girders using external fire insulation
topic Bridge fires, fire resistance, steel bridge girders, finite element analysis.
url http://kjar.spu.edu.iq/index.php/kjar/article/view/94
work_keys_str_mv AT esammaziz enhancingfireresistanceofsteelbridgegirdersusingexternalfireinsulation