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Web crippling tests of cold-formed stainless steel tubular sections at elevated temperatures
Abstract This paper presents an experimental investigation on web crippling behaviour of cold-formed stainless steel square and rectangular hollow sections (SHS and RHS) at elevated temperatures. A total of 21 web crippling tests were conducted under the Interior Two-Flange (ITF) loading condition as codified in ASCE/SEI 8–22 Specification at various temperatures up to 800 °C. Tensile flat and corner coupon tests were conducted to obtain the material properties of the cold-formed stainless steel SHS and RHS at various temperatures corresponding to those pre-set in the web crippling tests. Details of the test specimens, setups and procedures are comprehensively documented in this paper. Furthermore, the specimen temperatures together with the test results, including failure modes, web crippling strengths and load-deformation curves are fully reported. The obtained test results were used to evaluate the suitability of codified web crippling design provision as per ASCE/SEI 8–22, where reduced material properties were used in calculating the web crippling strengths at elevated temperatures. In addition, the test results were also compared with the predictions obtained from existing design rules in literatures for cold-formed stainless steel SHS and RHS at elevated temperatures. Moreover, reliability analyses were conducted to assess the reliability levels of these design provisions. It is demonstrated that the available web crippling design provisions can provide generally conservative and reliable strength predictions, and therefore are deemed suitable for predicting the web crippling strengths of cold-formed stainless steel SHS and RHS at elevated temperatures.
Highlights This investigation serves as the first test programme to study web crippling behaviour of CFSS sections at elevated temperatures. Flat and corner coupon tests were conducted to obtain material properties at various temperatures. A total of 21 web crippling tests were conducted under ITF loading condition with temperatures up to 800°C. Test results are reported and existing web crippling design provisions are also assessed.
Web crippling tests of cold-formed stainless steel tubular sections at elevated temperatures
Abstract This paper presents an experimental investigation on web crippling behaviour of cold-formed stainless steel square and rectangular hollow sections (SHS and RHS) at elevated temperatures. A total of 21 web crippling tests were conducted under the Interior Two-Flange (ITF) loading condition as codified in ASCE/SEI 8–22 Specification at various temperatures up to 800 °C. Tensile flat and corner coupon tests were conducted to obtain the material properties of the cold-formed stainless steel SHS and RHS at various temperatures corresponding to those pre-set in the web crippling tests. Details of the test specimens, setups and procedures are comprehensively documented in this paper. Furthermore, the specimen temperatures together with the test results, including failure modes, web crippling strengths and load-deformation curves are fully reported. The obtained test results were used to evaluate the suitability of codified web crippling design provision as per ASCE/SEI 8–22, where reduced material properties were used in calculating the web crippling strengths at elevated temperatures. In addition, the test results were also compared with the predictions obtained from existing design rules in literatures for cold-formed stainless steel SHS and RHS at elevated temperatures. Moreover, reliability analyses were conducted to assess the reliability levels of these design provisions. It is demonstrated that the available web crippling design provisions can provide generally conservative and reliable strength predictions, and therefore are deemed suitable for predicting the web crippling strengths of cold-formed stainless steel SHS and RHS at elevated temperatures.
Highlights This investigation serves as the first test programme to study web crippling behaviour of CFSS sections at elevated temperatures. Flat and corner coupon tests were conducted to obtain material properties at various temperatures. A total of 21 web crippling tests were conducted under ITF loading condition with temperatures up to 800°C. Test results are reported and existing web crippling design provisions are also assessed.
Web crippling tests of cold-formed stainless steel tubular sections at elevated temperatures
Zhan, Ke-Jiang (author) / Li, Hai-Ting (author) / Fan, Zhi-Hao (author) / Young, Ben (author)
Engineering Structures ; 304
2023-12-31
Article (Journal)
Electronic Resource
English
Web Crippling of Cold-Formed Stainless Steel Tubular Sections
| SAGE Publications | 2008
Web Crippling of Cold-Formed Stainless Steel Tubular Sections
| Online Contents | 2008