Experimental and numerical investigation of perforated cold-formed steel built-up I-section columns with web stiffeners and complex edge stiffeners

Wang, Chungang; Guo, Qinglin; Zhang, Zhuangnan; Guo, Yuting

doi:10.1177/1369433219836174

Cited by 15 publications

(3 citation statements)

References 29 publications

(40 reference statements)

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“…Stub, medium-long, and long columns of built-up I-sections with holes and complex edge and web stiffeners were experimentally tested by Wang et al [32]. In cases of stub and intermediate columns, the governing failure mode was the distortional, since the web stiffeners prevented the occurrence of local web buckling, as well as decreasing the deformation in the proximity of the hole.…”

Section: Other Sectionsmentioning

confidence: 99%

“…Consequently, a resistance decrease of the member is expected. This issue has been addressed by adding stiffeners along the section [9,16,32] and hole edges [4,[13][14][15]22,28,[33][34][35][36]. Since the behaviour of CFS elements is dictated by instability effects rather than the yield of the material, the size and location of web holes along the element can prove to be an important factor [6,8,14,17,18,21,[23][24][25]28,30,[37][38][39][40][41][42][43][44][45][46].…”

Section: Introductionmentioning

confidence: 99%

“…Although the majority of research has been focused on elements subjected to pure compression or bending, in recent years, web crippling [33][34][35][36][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65] and shear [43][44][45][46][66][67][68][69][70][71][72][73] behaviour have been analysed as well. However, a commonly occurring case in the engineering practice of combined compression and bending [32] should have attracted more attention from researchers. This issue has been addressed when it comes to CFS members without web holes [74][75][76][77][78][79][80][81][82][83][84] and CFS members with small and densely arranged perforations typical for rack uprights…”

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confidence: 99%

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The Influence of Web Holes on the Behaviour of Cold-Formed Steel Members: A Review

et al. 2022

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The use of cold-formed steel (CFS) members in structural engineering has been on the increase recently due to a wide range of benefits. The placement of electrical and/or plumbing installations within the floor or wall thickness requires that members are being manufactured with holes along the web, inevitably affecting their resistance. This article aims at providing a useful and comprehensive overview of the existing literature regarding CFS members with web holes. Experimental and numerical research on CFS members with web holes subjected to pure compression, bending, web crippling and shear is outlined and discussed. Although research on these types of members date back to the early 1970s, the greatest progress in the research field of CFS members with web holes was achieved during the past 15 years; hence, mostly the research conducted during this period was addressed. Additionally, design proposals are summarised for each of the aforementioned stress states. A brief description of the main concepts of design presented in four principal design codes, as well as numerical solution methods for predicting global, local, and distortional buckling modes, is also presented, aiming to collect the accessible up-to-date knowledge of CFS members with holes and identify areas that were modestly covered by previous research.

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Section: Other Sectionsmentioning

confidence: 99%