Simplified energy-based method for progressive collapse analysis of steel structures subjected to local fire - 文章详情页

作者：

Tian, Xiang-Kai (Tian, Xiang-Kai.) | Chen, Shi-Cai (Chen, Shi-Cai.) (学者：陈适才) | Zhang, Lei (Zhang, Lei.) | Li, Yi (Li, Yi.) | Yan, Wei-Ming (Yan, Wei-Ming.) (学者：闫维明)

收录：

EI Scopus PKU CSCD

摘要：

To　study　the　collapse　mechanism　and　collapse　resistance　of　steel　structures　subjected　to　local　fire,　a　simplified　collapse　analysis　model　with　single　degree　of　freedom　is　established　based　on　the　initial　collapse　mechanism　of　steel　structures　under　fire.　In　this　model,　the　superstructure　is　modeled　as　a　constraint　spring　with　tri-linear　elastic-plastic　properties,　and　the　heated　column　is　simplified　as　a　lumped　plastic　hinge　model.　Then　the　energy-based　formula　to　calculate　the　structure　response　is　deduced.　Finally　the　rationality　and　feasibility　of　the　proposed　model　and　method　are　validated　through　a　comparison　with　the　numerical　analysis　results　of　the　whole　structure　subjected　to　local　fire.　©,　2015,　Tsinghua　University.　All　right　reserved.

关键词：

Degrees of freedom (mechanics) Elastoplasticity Fire resistance Fires Numerical methods Steel structures Structural dynamics

作者机构：

[ 1 ] [Tian, Xiang-Kai]Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Chen, Shi-Cai]Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Chen, Shi-Cai]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhang, Lei]Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Li, Yi]Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Li, Yi]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Yan, Wei-Ming]Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Yan, Wei-Ming]The Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

陈适才
[chen, shi-cai]the key laboratory of urban security and disaster engineering, ministry of education, beijing university of technology, beijing; 100124, china;;[chen, shi-cai]beijing key laboratory of earthquake engineering and structural retrofit, beijing university of technology, beijing; 100124, china

电子邮件地址：

csc@bjut.edu.cn

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