Research on progressive collapse resistance capacity of composite frame with CFST columns under corner column removal scenario

doi:10.6052/j.issn.1000-4750.2021.02.0147

IR > 土木工程学院

	Research on progressive collapse resistance capacity of composite frame with CFST columns under corner column removal scenario
	Wang, Jing-Xuan1 ; Yang, Yong1 ; Zhou, Kan 2; Li, Qiu-Ying 1
	2022-05-01
发表期刊	Gongcheng Lixue/Engineering Mechanics
ISSN	1000-4750
卷号	39 期号:5 页码:105-118
摘要	To study the progressive collapse performance of the composite frame with CFST columns under the corner column removal scenario, a 1/4-scale two-story-two-bay composite frame specimen was designed and tested. By the monotonic static loading of the residual structure after the corner column was damaged, the tests obtained the load-displacement relationship curves of the composite frame, the global/local failure modes of the structure and the strain developments of critical locations. The energy equivalence principle was used to analyze the progressive collapse dynamic effects. The resistance to progressive collapse of the composite CFST frame was evaluated. The experimental results show that the progressive collapse loading process of composite frame with CFST columns mainly includes four stages in the corner column removal scenario, i.e., elastic stage, elastic-plastic stage, internal force redistribution stage and damage stage. The damage of the specimen is mainly concentrated in the failure span. The failure characteristics are mainly on the fracture and distortion of steel beams, and the steel beams on the second floor are damaged before that on the first floor. It is also found that the composite slabs with profiled sheeting and concrete are separated from the steel beam and the shear studs are pulled off. When the flange of the steel beam on the second-floor is cracked, the internal force is transferred to the first-floor steel beam through the adjacent column. Based on the test results and the energy equivalence principle, it is found that the composite frame has 15.3% residual capacity to resist the progressive collapse in the corner column removal scenario. Copyright ©2022 Engineering Mechanics. All rights reserved.
关键词	Concretes Elastoplasticity Steel beams and girders Structural dynamics Structural frames Tubular steel structures Capacity evaluation Column removal Composite frame Concrete filled steel tube columns Concrete-filled steel tube Concretefilled steel tubes (CFST) Experimental study Mechanism analysis Progressive collapse Steel beams
DOI	10.6052/j.issn.1000-4750.2021.02.0147
收录类别	EI
语种	中文
出版者	Tsinghua University
EI入藏号	20221912072824
EI主题词	Floors
EI分类号	402 Buildings and Towers ; 408 Structural Design ; 408.2 Structural Members and Shapes ; 412 Concrete ; 545.3 Steel
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158374
专题	土木工程学院石油化工学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology Lanzhou, Lanzhou; 730050, China; 2.School of Built Environment, Engineering and Computing, Leeds Beckett University, City Campus, Leeds; LS1 3HE, United Kingdom
第一作者单位	土木工程学院
第一作者的第一单位	土木工程学院
推荐引用方式 GB/T 7714	Wang, Jing-Xuan,Yang, Yong,Zhou, Kan,et al. Research on progressive collapse resistance capacity of composite frame with CFST columns under corner column removal scenario[J]. Gongcheng Lixue/Engineering Mechanics,2022,39(5):105-118.
APA	Wang, Jing-Xuan,Yang, Yong,Zhou, Kan,&Li, Qiu-Ying.(2022).Research on progressive collapse resistance capacity of composite frame with CFST columns under corner column removal scenario.Gongcheng Lixue/Engineering Mechanics,39(5),105-118.
MLA	Wang, Jing-Xuan,et al."Research on progressive collapse resistance capacity of composite frame with CFST columns under corner column removal scenario".Gongcheng Lixue/Engineering Mechanics 39.5(2022):105-118.