A numerical model for post-fire performance of reinforced concrete and steel reinforced concrete structures based on beam elements - 文章详情页

作者：

Wang, Guangyong (Wang, Guangyong.) | Zhang, Dongming (Zhang, Dongming.) | Liu, Qing (Liu, Qing.) | Zhang, Chao (Zhang, Chao.)

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摘要：

A　numerical　model　for　the　post-fire　performance　of　reinforced　concrete　(RC)　and　steel　reinforced　concrete　(SRC)　frame　structures　under　fire　was　proposed.　This　model　was　based　on　beam　elements　and　can　include　the　effects　of　the　heating　and　cooling　phases　on　the　post-fire　performance　of　the　frame　structures.　The　model　was　established　by　choosing　appropriate　material　constitutive　relations　in　the　heating,　cooling　and　post-fire　phases,　and　was　realized　by　programming　a　UMAT　subroutine　on　the　platform　of　ABAQUS.　In　the　end,　the　calculation　results　were　compared　with　the　test　results　of　the　fire　performance　of　RC　frame　structures,　the　post-fire　performance　of　SRC　columns　and　frame　structures.　The　calculation　results　agree　well　with　the　test　results,　showing　that　the　proposed　model　is　reasonable.　©　2016,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.

关键词：

Composite structures Concrete beams and girders Finite element method Fires Numerical models Reinforced concrete Structural frames Subroutines

作者机构：

[ 1 ] [Wang, Guangyong]Institute of Building Fire Research, China Academy of Building Research, Beijing; 100013, China
[ 2 ] [Zhang, Dongming]China Building Technology Group Co., Ltd, China Academy of Building Research, Beijing; 100013, China
[ 3 ] [Liu, Qing]Institute of Building Fire Research, China Academy of Building Research, Beijing; 100013, China
[ 4 ] [Zhang, Chao]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

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