Analysis of the influence of geometric, modeling and environmental parameters on the fire response of steel bridges subjected to realistic fire scenarios
Analysis of the influence of geometric, modeling and environmental parameters on the fire response of steel bridges subjected to realistic fire scenarios
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DOI：
10.1016/j.compstruc.2015.06.003
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发表时间：
2015-10
影响因子：
4.7
通讯作者：
G. Peris-Sayol;I. Payá-Zaforteza;J. Alos-Moya;A. Hospitaler
中科院分区：
文献类型：
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作者：
G. Peris-Sayol;I. Payá-Zaforteza;J. Alos-Moya;A. Hospitaler
本文研究了桥梁火灾的数值模型，分析了典型的梁式桥油罐车火灾的反应。它解释了火灾位置，桥梁结构（垂直间隙，跨度数）和风速对桥梁响应的影响。结果表明，在无风条件下，在竖向净空最小的单跨桥梁中，靠近桥台的油罐火灾造成的破坏最大。本文提供了建模技术的新见解，并证明了桥梁响应可以预测的有限元模型的最暴露的梁，这节省了显着的建模和分析时间。
This paper studies bridge fires by using numerical models to analyze the response of a typical girder bridge to tanker truck fires. It explains the influence of fire position, bridge configuration (vertical clearance, number of spans) and wind speed on the bridge response. Results show that the most damage is caused by tanker fires close to the abutments in single span bridges with minimum vertical clearance and under windless conditions. The paper provides new insights into modeling techniques and proves that bridge response can be predicted by FE models of the most exposed girder, which saves significant modeling and analysis times.