Behavior of steel-concrete composite slabs subjected to standard fire

被引：0
|
作者：
Mao, Xiao-Yong [1 ]
Zhang, Yao-Chun [1 ]
Han, Lin-Hai [1 ]
机构：
[1] Sch. of Civil Eng., Harbin Inst. of Technol., Harbin 150001, China
来源：
Journal of Harbin Institute of Technology (New Series) | 2002年 / 9卷 / 02期
关键词：
Finite element method - Fire resistance - Numerical methods - Steel structures - Temperature distribution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Finite element method is employed to calculate the temperature fields for two kinds of steel-concrete composite slabs: composite slab with profiled steel sheeting and LJMB composite slab. The calculated results are in good agreement with those of tests. Fire resistance of the two kinds of composite slabs is calculated by using a numeric method. The results show that: due to heat-absorbing of concrete, the performance of composite slabs under fire is better than that of unprotected steel structure, and fire resistance of composite slabs mentioned is at least 30 min subjected to standard fire. Parameters related to the fire-resistance are discussed. It was found that with the increase of concrete strength and thickness of slab, fire-resistance increases, and with the increase of steel strength and steel ratio, fire-resistance decreases. Also thickness of fire proof is calculated by a numeric method. The results obtained may be referenced for practical engineering.
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页码：155 / 160
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