Progressive collapse analysis on composite frame with concrete-filled steel tubular columns based on initial damage models

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	Progressive collapse analysis on composite frame with concrete-filled steel tubular columns based on initial damage models
	Wang, Jingxuan1 ; Wang, Wenda1 ; Zhou, Xiaoyan 2
	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:179-185
摘要	To investigate the progressive collapse resistance of structures, the most possible initial damage model should be predicted, i. e. the damage of a member will lead to the progressive collapse of the whole structures. By considering the structural strain energy variation and the influencing areas of localized damage before and after a structural member is damaged, a method was developed to calculate the importance indices of members, which can be used to determine the most possible unfavorable initial damage model of structure. This paper presents a finite element (FE) model of an 8-story spatial frame with concrete-filled steel tubular (CFST) columns based on nonlinear fiber beam-column element theory to study the progressive collapse resistance under different initial damage models using ABAQUS software. The results show that the importance indices of CFST columns are larger than the steel beams'. The importance indices of middle column is the largest and the importance indices of corner column does not appear in the key position. The internal forces of columns and beams will be redistributed since the failure of key column and the unloading-path follows the nearest path principle under three typical initial damage models.
关键词	ABAQUS Composite structures Dynamics Steel fibers Strain energy Structural dynamics Tubular steel structures Unloading Concrete filled steel tubular columns Concrete-filled steel tubes Fiber model Importance index Initial damage Progressive collapse Progressive collapse analysis Structural strain energies
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20133916790334
EI主题词	Concretes
EI分类号	408 Structural Design - 408.2 Structural Members and Shapes - 412 Concrete - 691.2 Materials Handling Methods - 819.4 Fiber Products - 921 Mathematics - 931.1 Mechanics
来源库	Compendex
分类代码	408 Structural Design - 408.2 Structural Members and Shapes - 412 Concrete - 691.2 Materials Handling Methods - 819.4 Fiber Products - 921 Mathematics - 931.1 Mechanics
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113478
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.Gansu Institute of Architectural Design and Research, Lanzhou 730030, 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	Wang, Jingxuan,Wang, Wenda,Zhou, Xiaoyan. Progressive collapse analysis on composite frame with concrete-filled steel tubular columns based on initial damage models[J]. Jianzhu Jiegou Xuebao/Journal of Building Structures,2013,34(SUPPL.1):179-185.
APA	Wang, Jingxuan,Wang, Wenda,&Zhou, Xiaoyan.(2013).Progressive collapse analysis on composite frame with concrete-filled steel tubular columns based on initial damage models.Jianzhu Jiegou Xuebao/Journal of Building Structures,34(SUPPL.1),179-185.
MLA	Wang, Jingxuan,et al."Progressive collapse analysis on composite frame with concrete-filled steel tubular columns based on initial damage models".Jianzhu Jiegou Xuebao/Journal of Building Structures 34.SUPPL.1(2013):179-185.