Experimental and numerical studies on square steel-reinforced concrete-filled steel tubular (SRCFST) members subjected to lateral impact

doi:10.1016/j.tws.2020.107409

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Experimental and numerical studies on square steel-reinforced concrete-filled steel tubular (SRCFST) members subjected to lateral impact
	Xian, Wei 1,2; Chen, Wensu 2; Hao, Hong 2; Wang, Wen-Da 1
刊名	Thin-Walled Structures
	2021-03-01
卷号	160
关键词	ABAQUS Concrete construction Numerical models Software testing Structural members Concrete-filled steel tubular Energy absorption capacity Energy distributions Engineering practices Experimental and numerical studies Lateral impact loads Mid-span displacements Steel reinforced concrete
ISSN号	02638231
DOI	10.1016/j.tws.2020.107409
英文摘要	Steel-reinforced concrete-filled steel tubular (SRCFST) structures were proposed in recent years and have been employed in engineering practices. To date, the existing studies mainly focused on the behaviours of SRCFST structural members under static or seismic load. Only very limited studies of the SRCFST structural members subjected to impact load, which might cause severe damage and even structural collapse, can be found in literature. In this study, experimental and numerical studies on square SRCFST specimens under lateral impact load are conducted. A total of eighteen square SRCFST specimens are fabricated and tested via a drop hammer impact device. Various parameters (i.e. impact velocity, boundary condition, impact direction, cross-section of steel profile and axial load level) are considered to evaluate their effects on impact responses of square SRCFST members. The damage modes, impact forces, mid-span displacement responses and energy absorption capacities of the tested specimens are extracted from testing data and analysed. Furthermore, by using the software ABAQUS, numerical model is established and validated with the testing results. With the validated numerical models, the damage evolution, sectional stress and energy distribution of the structure with different parameters and impacting scenarios are evaluated. The impact behaviours of square SRCFST and concrete-filled steel tubular (CFST) members are also compared and discussed. © 2020 Elsevier Ltd
WOS研究方向	Engineering ; Mechanics
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000617795500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147230]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Center for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Australia
推荐引用方式 GB/T 7714	Xian, Wei,Chen, Wensu,Hao, Hong,et al. Experimental and numerical studies on square steel-reinforced concrete-filled steel tubular (SRCFST) members subjected to lateral impact[J]. Thin-Walled Structures,2021,160.
APA	Xian, Wei,Chen, Wensu,Hao, Hong,&Wang, Wen-Da.(2021).Experimental and numerical studies on square steel-reinforced concrete-filled steel tubular (SRCFST) members subjected to lateral impact.Thin-Walled Structures,160.
MLA	Xian, Wei,et al."Experimental and numerical studies on square steel-reinforced concrete-filled steel tubular (SRCFST) members subjected to lateral impact".Thin-Walled Structures 160(2021).