Experimental study on circular-in-square concrete filled double-skin steel tubular (CFDST) composite components under lateral impact

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	Experimental study on circular-in-square concrete filled double-skin steel tubular (CFDST) composite components under lateral impact
	Shi, Yanli1 ; Xian, Wei 1; Wang, Rui 2; Wang, Wenda1
	2019-12-01
发表期刊	Tumu Gongcheng Xuebao/China Civil Engineering Journal
ISSN	1000131X
卷号	52 期号:12 页码:11-21 and 35
摘要	8 specimens of circular-in-square concrete filled double-skin steel tubular (CFDST) with large hollow ratio were tested under the lateral impact.The impact process, failure modes of the specimens, time history of the impact force, lateral deformations and longitudinal strains were analyzed based on the experimental results.The effects of the impact height, boundary condition and axial load ratio on the dynamic response of circular-in-square CFDST composite components under lateral impact were considered.The test results show that obvious local deformation at the impact location of the circular-in-square CFDST composite components with the hollow ratio of 0.69 can be observed and the global bending deformation is not significant.Within the experimental parameters scope, with the increase of impact height, local deformation at the impact location, residual lateral deformation at mid-span and the impact duration time increase linearly.Boundary condition has a significant effect on the residual lateral deformation at the mid-span, the plateau values of the impact force and the impact duration time.Axial load ratio is an important factor affecting the dynamic response of specimens.With the increase of the axial load ratio, the plateau values of the impact force gradually shorten and disappear, the deformation speed of lateral deformation at mid-span becomes faster and the impact process also becomes more faster. © 2019, Editorial Office of China Civil Engineering Journal. All right reserved.
关键词	Axial loads Deformation Dynamic response Failure modes Circular-in-square CFDST Composite components Deformation speed Experimental parameters Lateral deformation Local deformations Longitudinal strain Time history curves
收录类别	EI
语种	中文
出版者	Chinese Society of Civil Engineering
EI入藏号	20200408064884
EI主题词	Concretes
EI分类号	408 Structural Design - 412 Concrete
来源库	Compendex
分类代码	408 Structural Design - 412 Concrete
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114028
专题	土木工程学院
作者单位	1.Lanzhou University of Technology, Lanzhou; 730050, China; 2.Taiyuan University of Technology, Taiyuan; 030024, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Shi, Yanli,Xian, Wei,Wang, Rui,et al. Experimental study on circular-in-square concrete filled double-skin steel tubular (CFDST) composite components under lateral impact[J]. Tumu Gongcheng Xuebao/China Civil Engineering Journal,2019,52(12):11-21 and 35.
APA	Shi, Yanli,Xian, Wei,Wang, Rui,&Wang, Wenda.(2019).Experimental study on circular-in-square concrete filled double-skin steel tubular (CFDST) composite components under lateral impact.Tumu Gongcheng Xuebao/China Civil Engineering Journal,52(12),11-21 and 35.
MLA	Shi, Yanli,et al."Experimental study on circular-in-square concrete filled double-skin steel tubular (CFDST) composite components under lateral impact".Tumu Gongcheng Xuebao/China Civil Engineering Journal 52.12(2019):11-21 and 35.