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原文传递 Web Crippling Design of Cold-Formed Stainless Steel SHS and RHS

题名：	Web Crippling Design of Cold-Formed Stainless Steel SHS and RHS
正文语种：	eng
作者：	Hai-Ting Li;Feng Zhou;Ben Young
作者单位：	Shanghai Jiao Tong Univ.;Tongji Univ.;Hong Kong Polytechnic Univ.
关键词：	Cold-formed;Design provision;Direct strength method (DSM);Hollow section;ASCE specification;Stainless steel;Web crippling
摘要：	Abstract This paper presents the development and background information of the web crippling design provision proposed for cold-formed stainless steel square and rectangular hollow sections (SHS and RHS) incorporated in the recently revised ASCE/SEI 8-22 Specification. The provision was derived based upon reliability requirements as regulated by the ASCE/SEI 8-22 using experimental data from the literature on cold-formed SHS and RHS of austenitic, ferritic, and austenitic-ferritic (duplex and lean-duplex) stainless steel types of various grades including UNS S30400, S30153, S43940, S40977, S32101, and S32202. The accuracy and consistency of the design provisions in the ASCE/SEI 8-22 and SEI/ASCE 8-02 specifications were compared. In addition, the possible extension of validity limits of the new ASCE/SEI 8-22 provision was assessed by utilizing additional finite-element results generated in this study as well as those reported in the literature. It is shown that the validity limits of the new provision could be further extended. Moreover, the direct strength method (DSM) proposed by the authors for web crippling design of cold-formed ferritic stainless steel SHS and RHS was evaluated to check its applicability to other stainless steel types and grades. A modified DSM with updated coefficients is proposed in this study using the format that in line with DSM for members in shear as per ASCE/SEI 8-22. It is shown that the modified DSM can provide well-predicted resistances for cold-formed stainless steel SHS and RHS undergoing web crippling.
出版年：	2023
期刊名称：	Journal of structural engineering
卷：	149
期：	11
页码：	1.1-1.12