Advanced Steel Construction

Vol. 19, No. 1, pp. 52-69 (2023)


 BEHAVIOR OF WEB PERFORATED COLD-FORMED

STEEL BEAMS UNDER COMBINED BENDING AND SHEAR ACTION

 

Li-Ping Wang 1, 2, *, Jian Li 1, Xing-Xing Cao 1, Dong-Hui Wen 3 and Hai-Bo Wang 4

1 School of Civil Engineering, Central South University, Changsha 410075, PR China

2 Engineering Technology Research Center for Prefabricated Construction Industrialization of Hunan Province, Changsha, 410075, PR China

3 Department of Architecture and Environmental Engineering, Taiyuan University, Taiyuan 030032, PR China

4 Hunan Tieyuan Civil Engineering Testing Co., Ltd, Changsha 410075, PR China

* (Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 20 July 2022; Revised: 22 August 2022; Accepted: 10 January 2023

 

DOI:10.18057/IJASC.2023.19.1.8

 

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ABSTRACT

To cater engineering application needs, cold-formed steel (CFS) members often have some web openings which could influence bearing capacity of the steel beam under combined bending and shear action. This paper presents tests on 20 groups of thin-walled web-perforated lipped C-shaped CFS beams, which were conducted under single point loading mode at mid-span. Besides, detailed finite element parameter analysis on the high shear-span ratio (a/h= 1.5 ~ 4.0) specimens was conducted by ABAQUS after the model was verified, which was mainly focused on the influences of different hole depth-to-web height ratios (dh/h) and web height-to-thickness ratios (h/t) on the bearing capacity and failure modes of the beams. Based on the results of test and FEA, the mechanical behavior and failure rules of thin-walled web perforated lipped C-shaped CFS beams under combined bending and shear action were deeply studied.

 

KEYWORDS

Cold-formed steel, Combined action of bending and shear, Web openings


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