压型钢板-混凝土组合楼板抗火性能非线性分析  

Nonlinear Analysis of Fire Resistance of Composite Deck Slabs

作　　者：徐朝晖[1] 陆洲导[1] 王李果[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《建筑结构学报》2002年第5期73-77,83,共6页Journal of Building Structures

摘　　要：压型钢板-混凝土组合楼板是目前广泛运用的一种新型结构构件,但由于缺乏对组合楼板抗火性能的研究,现有设计方法并没有充分发挥材料的性能。本文在建立室内火灾传热模型基础上,在空间上运用有限单元法和在时间上运用有限差分的混合解法,编制计算程序解算出火灾下组合楼板在不同时刻的温度场,进而利用钢筋混凝土非线性有限单元法,对多种工况下组合楼板的抗火性能进行了分析,为组合楼板的抗火设计及研究提供了一定的基础。Being a new style of structure, composite deck slabs are widely used in recent years. Because of the absence of researches on the fire resistant behavior of composite slabs, the material property of such structure hasn' been fully developed yet. Heat transfer modes of compartment fire have been established in this paper. A combination method of finite element and finite difference was used with a computer program compiled to analyze the temperature distribution for composite slabs in fire at different times. By using the nonlinear finite element method, the fire resistant behavior of composite slabs under different working conditions was then analyzed. It can be useful to further research and practical design.

关 键 词：压型钢板 混凝土 组合楼板 结构抗火 非线性 

分 类 号：TU398.9[建筑科学—结构工程]