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, Wenda 1
刊名	Jianzhu Jiegou Xuebao/Journal of Building Structures
	2013-08-01
卷号	34 期号:SUPPL.1 页码:407-412
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
ISSN号	10006869
英文摘要	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.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://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
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.