Numerical simulation on fire resistance of composite frame with CFST columns based on multi-scale method

doi:10.6052/j.issn.1000-4750.2012.05.S003

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Numerical simulation on fire resistance of composite frame with CFST columns based on multi-scale method
	Wang, Jing-Xuan 1,2; Wang, Wen-Da 1,2; Zhou, Xiao-Yan 1
刊名	Gongcheng Lixue/Engineering Mechanics
	2012-12-01
卷号	29 期号:SUPPL. 2 页码:170-175
关键词	ABAQUS Beams and girders Computer simulation Concretes Numerical methods Numerical models Rating Structural design Structural frames Beams and columns Concrete filled steel tubular columns Effective constraints Fire resistance rating Internal force distributions Multi-scale Modeling Progressive collapse Structural deformation
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2012.05.S003
英文摘要	The composite frames with concrete-filled steel tubular (CFST) columns may damage in a progressive collapse mode because of the failure of the CFST columns under local fire attack. This paper presents a finite element model (FEM) of a three-story-three-span planar composite frame with CFST columns exposured to local fire scenes based on a multi-scale method using ABAQUS. The reasonable thermal and material models of steel and concrete were considered, respectively. The element models and the interactions of the beams and columns were simulated logically in the FEM. The structural deformations, internal force distributions and the failure modes of the composite frame were studied under four different fire scenes and the fire resistance rating of the frame were calculated. The results show that the fire resistance rating is the most maximum when the fire scene located at the middle floor due to the effective constraint by the other members.
语种	中文
出版者	Tsinghua University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111089]
专题	土木工程学院
作者单位	1.College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, 730050, China;
推荐引用方式 GB/T 7714	Wang, Jing-Xuan,Wang, Wen-Da,Zhou, Xiao-Yan. Numerical simulation on fire resistance of composite frame with CFST columns based on multi-scale method[J]. Gongcheng Lixue/Engineering Mechanics,2012,29(SUPPL. 2):170-175.
APA	Wang, Jing-Xuan,Wang, Wen-Da,&Zhou, Xiao-Yan.(2012).Numerical simulation on fire resistance of composite frame with CFST columns based on multi-scale method.Gongcheng Lixue/Engineering Mechanics,29(SUPPL. 2),170-175.
MLA	Wang, Jing-Xuan,et al."Numerical simulation on fire resistance of composite frame with CFST columns based on multi-scale method".Gongcheng Lixue/Engineering Mechanics 29.SUPPL. 2(2012):170-175.