Web crippling capacities of rivet fastened rectangular hollow flange channel beams under one flange load cases

Steau, Edward; Poologanathan, Keerthan; Mahendran, Mahen

doi:10.1002/stco.201500009

Cited by 11 publications

(7 citation statements)

References 13 publications

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“…These design guidelines were developed based on the Direct Strength Method (DSM). Steau et al [34][35][36] conducted experimental studies on the web crippling behaviour of rivet-fastened Rectangular Hollow Flange Channel Beams (RHFCBs) subjected to all four loading conditions. Based on these experimental investigations the authors developed new web crippling design equations for rivet-fastened RHFCBs considering both flange fastened and unfastened conditions.…”

Section: Experimental Investigationsmentioning

confidence: 99%

Web Crippling Behaviour of Cold-Formed Carbon Steel, Stainless Steel, and Aluminium Lipped Channel Sections with Web Openings

et al. 2022

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This paper reviews the research advancements and design practices related to the structural web crippling response of lipped Cold-Formed (CF) carbon steel, stainless steel, and aluminium channels with web perforations. The web crippling response differs among each material based on the non-linear stress-strain characteristics and degree of strain hardening. Therefore, the reduction in the web crippling strength of web-perforated CF channel sections made of different materials may not be equivalent. The research activities surrounding the web crippling response of CF channels with and without web openings were reviewed initially. Despite the limited design provisions given in the international specifications for the web crippling design of lipped CF channels with web openings, web crippling studies conducted across the world have developed suitable design equations in the form of reduction factors. Past research studies have substantially captured the web crippling response of carbon steel channels with web openings while that of stainless steel and aluminium are limited, as identified in this paper. Lastly, numerical models were developed for simulating the web crippling behaviour of lipped CF carbon steel, stainless steel, and aluminium channels with web opening and validated with past experimental data, with a view for developing unified design guidelines.

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Section: Experimental Investigationsmentioning

confidence: 99%

Web Crippling Behaviour of Cold-Formed Carbon Steel, Stainless Steel, and Aluminium Lipped Channel Sections with Web Openings

et al. 2022

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“…Recent web crippling studies also included an experimental investigation of a new hollow flange channel beam [35,36] and LCBs [37] under EOF and IOF load cases. Their study led to suitable web crippling design rules based on AS/NZS 4600 and AISI S100 design standards.…”

Section: Previous Studies On Web Cripplingmentioning

confidence: 99%

Experimental Study of Unlipped Channel Beams Subject to Web Crippling Under One Flange Load Cases

Gunalan¹,

Mahendran²

2019

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Cold-formed steel members are becoming increasingly popular in the building industry due to their superior strength to weight ratio and ease of fabrication as opposed to hot-rolled steel members. However, they are susceptible to various buckling modes at stresses below the yield stress of the member because of their relatively high width-to-thickness ratio. Web crippling is one of the failure modes that occurs in steel channel sections under transverse concentrated loads or reactions. Recently a test method has been proposed by AISI to obtain the web crippling capacities under both one-flange and two-flange load cases. Using this test method 21 tests were conducted in this research to investigate the web crippling behaviour and strengths of an unlipped channel section with stocky webs known as DuraGal Channels under end-one-flange (EOF) and interior one-flange (IOF) load cases. DuraGal channels with different web slenderness and bearing lengths were tested with their flanges unfastened to supports. In this re search the suitability of the currently available design rules for unlipped channels subject to web crippling under one flange load cases was investigated, and suitable modifications were proposed where necessary. This paper presents the details of this experimental study and the results.

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“…Owing to the thin-walled nature of CFS, CFS members are deemed to have local, distortional and global buckling instabilities even at a stress level below yield strength. To minimize the buckling instabilities by eliminating the free edges, hollow flange sections were developed and subjected to extensive research studies [3][4][5][6] to investigate their varying structural behaviour in the context of bending, shear and web-crippling actions. The development of the direct strength method (DSM) raised the subject of the innova-tive and complex section profiles of CFS members [7].…”

Section: Introductionmentioning

confidence: 99%

Structural behaviour of optimized cold‐formed steel beams

et al. 2020

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Cold-formed steel (CFS) members have been used significantly in light-gauge steel buildings due to their inherent advantages. Optimizing these CFS members in order to gain enhanced loadbearing capacities will result in economical and efficient building solutions. This research presents the investigation and results of the optimization of CFS members for flexural capacity. The optimization procedure was performed using the particle swarm optimization (PSO) method, while the section moment capacity was determined based on the effective width method adopted in EN 1993-1-3 (EC3). Theoretical and manufacturing constraints were incorporated while optimizing the CFS crosssections. In total, four CFS sections-lipped channel beam (LCB), optimized LCB, folded-flange and super-sigma-were considered in the optimization process, including new sections. The section moment capacities of these sections were also obtained through non-linear finite element (FE) analysis and compared with the EC3-based, optimized section moment capacities. The results show that, compared with a commercially available LCB with the same amount of material, the new CFS sections possess the highest section moment capacity enhancements (up to 65 %). In addition, the performance of these CFS sections when subjected to shear and web-crippling actions was also investigated using non-linear FE analysis.

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Web crippling capacities of rivet fastened rectangular hollow flange channel beams under one flange load cases

Cited by 11 publications

References 13 publications

Web Crippling Behaviour of Cold-Formed Carbon Steel, Stainless Steel, and Aluminium Lipped Channel Sections with Web Openings

Web Crippling Behaviour of Cold-Formed Carbon Steel, Stainless Steel, and Aluminium Lipped Channel Sections with Web Openings

Experimental Study of Unlipped Channel Beams Subject to Web Crippling Under One Flange Load Cases

Structural behaviour of optimized cold‐formed steel beams

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