摘要
基于ANSYS有限元软件对钢板-高强混凝土组合剪力墙的火灾反应进行了数值模拟,计算所得的温度场和变形与试验结果吻合较好。在此基础上,对墙身厚度、钢板厚度和约束条件这些因素进行了变参数分析。结果表明,在升降温过程中,约束类型和墙身厚度对剪力墙的挠度影响较大。当剪力墙顶部底部采用固定约束时,最大挠度远远小于一端固定约束时的情况。当钢板厚度与混凝土墙厚之比在1/40~1/12之间时,钢板厚度对于剪力墙的温度场和顶点位移未见明显影响。
In order to study the fire response of steel plate-high strength concrete composite shear walls,the finite element method（ FEM） via the ANSYS software was selected to simulate the behavior of walls exposed to fires on one side. The temperature field and deformation of simulation models were in good agreement with experimental results. Furthermore,the effects of the wall thickness,the thickness of steel plate and the constraint conditions were simulated and parameter studied. Results show that,under fire,the constraint type and wall thickness had greater influence on the deflection of the shear walls. When the two ends of the shear wall were restrained,the maximum deformation was far less than that of the wall with one end restrained. When the ratio of thickness of steel plate to the wall thickness was between 1/40 ～ 1/12,the thickness of steel plate had little effect on the temperature field and the displacementat top of the shear wall.
作者
肖建庄
卫凯华
柳献
董毓利
XIAO Jianzhuang;LIU Xian;DONG Yuli(Department of Structure Engineering,Tongji University,Shanghai 200092,China;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;College of Civil Engineering,Huaqiao University,Xiamen 361021,China)
出处
《结构工程师》
北大核心
2018年第3期92-100,共9页
Structural Engineers
基金
国家973重点基础研究发展计划(2012CB719703)
上海市高峰学科建设专项
关键词
钢板-高强混凝土组合剪力墙
火灾反应
温度场
挠度
数值分析
Steel plate-high strength concrete composite shear wall
fire response
temperature field
deflection
numerical analysis
