Experimental investigation and finite element analysis of web-stiffened cold-formed lipped channel columns with batten sheets

doi:10.1016/j.tws.2018.01.006

	Experimental investigation and finite element analysis of web-stiffened cold-formed lipped channel columns with batten sheets
	Zhou, Xuhong 1,3; Chen, Ming1,2
	2018-04-01
发表期刊	Thin-Walled Structures
ISSN	02638231
卷号	125 页码:38-50
摘要	This paper presents an experimental investigation and a finite element analysis on web-stiffened cold-formed lipped channel columns with batten sheets connected between the column's two lips at reasonable space. Initially, the paper presents the static compressive test results on 18 specimens under pinned-end restraint conditions with different column length and load eccentricities considered. It is shown that the batten sheets exert significant influence on both the buckling modes and the ultimate strength of the specimens under positive eccentric loading and/or axial loading conditions, while they just have few impacts on that of the specimens under negative eccentric compression. Strengthened by the batten sheets, the columns performed obviously higher ultimate strength under axial and positive eccentric compression compared with the ones without batten sheets and the strengthening effect increase with the increase of column length. Furthermore, the tested specimens were also numerically investigated by finite element program of ANSYS. Geometric and material nonlinearities were both included in the finite element models and it is demonstrated that the numerical analysis can closely predict the ultimate strength and the buckling behavior of the tested columns. Finally, a parametric study was conducted by using program of ANSYS, in which effect of the increasing lip stiffener width and varying batten sheet space were all investigated and it is concluded that the contribution of the batten sheets to the columns’ strength decreased notably with the increasing lip width or batten sheets’ space for axial and/or positive compressed columns. The best choice of the distance between batten sheets (d≤λ/3) for axial compressed lipped channel columns must also be a reasonable choice for positive compressed columns. © 2018 Elsevier Ltd
关键词	Buckling Compressive strength Software testing Batten sheet Buckling mode Experimental investigations Lipped channel columns Ultimate strength
DOI	10.1016/j.tws.2018.01.006
收录类别	EI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China - through the research project "Theoretical and Experimental Study on Distortional Buckling and Its Interaction Buckling of Cold-formed Steel Thin-walled Members in Compression"[50978128]
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:000428832600004
出版者	Elsevier Ltd
EI入藏号	20180704781012
EI主题词	Finite element method
EI分类号	723.5 Computer Applications - 921.6 Numerical Methods
来源库	Compendex
分类代码	723.5 Computer Applications - 921.6 Numerical Methods
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114581
专题	企业单位划归国资委人员
通讯作者	Chen, Ming
作者单位	1.Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China
通讯作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhou, Xuhong,Chen, Ming. Experimental investigation and finite element analysis of web-stiffened cold-formed lipped channel columns with batten sheets[J]. Thin-Walled Structures,2018,125:38-50.
APA	Zhou, Xuhong,&Chen, Ming.(2018).Experimental investigation and finite element analysis of web-stiffened cold-formed lipped channel columns with batten sheets.Thin-Walled Structures,125,38-50.
MLA	Zhou, Xuhong,et al."Experimental investigation and finite element analysis of web-stiffened cold-formed lipped channel columns with batten sheets".Thin-Walled Structures 125(2018):38-50.