Research on mechanical behavior of steel-concrete composite slabs exposed to overall stage fire

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	Research on mechanical behavior of steel-concrete composite slabs exposed to overall stage fire
	Xu, Lei 1,2; Bao, Yanhong 1; Wang, Wenda1
	2013-08-01
发表期刊	Jianzhu Jiegou Xuebao/Journal of Building Structures
ISSN	10006869
卷号	34 期号:SUPPL.1 页码:407-412
摘要	In order to properly analyze the mechanical behavior of steel-concrete composite slabs exposed to overall stage fire, using the finite element software ABAQUS, on the basis of reasonable selection of material constitutive models of steel-concrete composite slabs and the contact modeling among different components, the steel-concrete composite slab thermal-mechanical coupled finite element model was established. Some existing tests results were also used to verify the proposed finite element model. The performance and the working mechanism of steel-concrete composite slabs were analyzed at room temperature, fire temperature, cooling effect, and the combination of the different stages of the fire and parametric analysis was performed to investigate the mechanical behaviors of steel-concrete composite slabs after exposure to overall stage fire. The results show that the ultimate bearing capacity of composite slabs decreases relative to the room temperature because of the high temperature. Due to the endothermic action of composite slabs, the temperature of the entire slabs is lower and the composite slabs still have a high bearing capacity after fire; heating time ratio, the yield strength of steel beams, the concrete compressive strength and the thickness of the concrete have great influence on the mechanical behavior of steel-concrete composite slabs after exposure to overall stage fire.
关键词	ABAQUS Bearing capacity Bearings (machine parts) Behavioral research Compressive strength Concrete beams and girders Finite element method Fires Concrete compressive strength Fire temperatures Mechanical behavior Parametric -analysis Selection of materials Steel-concrete composite slabs Ultimate bearing capacity Working mechanisms
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20133916790369
EI主题词	Concrete slabs
EI分类号	412 Concrete - 601.2 Machine Components - 914.2 Fires and Fire Protection - 921 Mathematics - 921.6 Numerical Methods - 971 Social Sciences
来源库	Compendex
分类代码	412 Concrete - 601.2 Machine Components - 914.2 Fires and Fire Protection - 921 Mathematics - 921.6 Numerical Methods - 971 Social Sciences
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113501
专题	土木工程学院
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China; 2.School of Architecture and Civil Engineering, Dalian Nationalities University, Dalian 116600, China
第一作者单位	甘肃省土木工程防灾减灾重点实验室
第一作者的第一单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Xu, Lei,Bao, Yanhong,Wang, Wenda. Research on mechanical behavior of steel-concrete composite slabs exposed to overall stage fire[J]. Jianzhu Jiegou Xuebao/Journal of Building Structures,2013,34(SUPPL.1):407-412.
APA	Xu, Lei,Bao, Yanhong,&Wang, Wenda.(2013).Research on mechanical behavior of steel-concrete composite slabs exposed to overall stage fire.Jianzhu Jiegou Xuebao/Journal of Building Structures,34(SUPPL.1),407-412.
MLA	Xu, Lei,et al."Research on mechanical behavior of steel-concrete composite slabs exposed to overall stage fire".Jianzhu Jiegou Xuebao/Journal of Building Structures 34.SUPPL.1(2013):407-412.