Numerical and Experimental Analysis of Buckling and Post-Buckling Behaviour of TWCFS Lipped Channel Section Members Subjected to Eccentric Compression

Author:

Jankowski Jacek1ORCID,Kotełko Maria1,Ungureanu Viorel234ORCID

Affiliation:

1. Faculty of Mechanical Engineering, Łódź University of Technology, 90-537 Łódź, Poland

2. Department of Steel Structures and Structural Mechanics, Civil Engineering Faculty, Politehnica University Timisoara, 300224 Timisoara, Romania

3. Laboratory of Steel Structures, CCTFA, Romanian Academy—Timisoara Branch, 300223 Timisoara, Romania

4. Technical Science Academy of Romania, 010413 Bucharest, Romania

Abstract

The paper presents a static analysis of the buckling and post-buckling state of thin-walled cold-formed steel (TWCFS) lipped channel section beam-columns subjected to eccentric compression. Eccentricity is taken into consideration relative to both major and minor principal axes. An analytical–numerical solution to the buckling and post-buckling problems is described. The solution is based on the theory of thin plates. Equations of equilibrium of section walls are derived from the principle of stationary energy. Then, to solve the problem, the finite difference (FDM) and Newton–Raphson methods are applied. Linear (buckling) and nonlinear (post-buckling) analyses are performed. As a result, pre- and post-buckling equilibrium paths are determined. Comparisons of the obtained numerical results, FE simulation results, and experimental test results are carried out and presented in comparative load-shortening diagrams. Additionally, a comparison of the buckling forces and buckling modes obtained from theoretical analysis and experiments is presented.

Funder

National Science Centre of the Polish Ministry of Science and Higher Education

Publisher

MDPI AG

Reference22 articles.

1. (2006). Eurocode 3: Design of Steel Structures, Part 1.3: General Rules, Supplementary Rules for Cold-Formed Thin Gauge Members and Sheeting (Standard No. EN 1993-1-3).

2. Design recommendation of cold-formed steel built-up sections under concentric and eccentric compression;He;J. Constr. Steel Res.,2023

3. Test and direct strength method on slotted perforated cold-formed steel channels subjected to eccentric compression;Zhao;Eng. Struct.,2023

4. Buckling behaviour of cold-formed sigma and lipped channel beam-column members;Ozturuk;J. Thin-Walled Struct.,2022

5. Theoretical study of ultimate load locally buckled stub columns loaded eccentrically;Guo;J. Constr. Steel Res.,1996

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3