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Cold-formed ferritic stainless steel closed-section built-up beams: Tests and flexural response
https://orcid.org/0000-0002-4457-4044
https://orcid.org/0000-0002-7144-6195
Abstract This article presents the first experimental study reported on the flexural behaviour of cold-formed ferritic stainless steel (CFFSS) closed-section built-up beams. Each closed-section built-up beam has been formed by connecting two lipped channels in the face-to-face arrangement and spot welded at intermediate locations along the beam span. Sixteen specimens have been fabricated and tested till failure under three-point bending and four-point bending. Cross-sectional aspect ratio, plate slenderness of the compression flange and moment gradient were the critical parameters varied for investigating their influence through tests. The CFFSS chemical, material properties, geometric imperfections, ultimate moment capacity, failure modes and deflection responses were recorded for bringing out meaningful interpretation of the test results. The ultimate moment values obtained from the tests have been compared with the nominal design moment capacity predicted by the current Australian Standard (AS/NZS), American Specification (SEI/ASCE-8-02), European Code (EN 1993-1-4) and Direct Strength Method (DSM) in North American Specification (AISI-S100:2016) and Continuous Strength Method (CSM). The test results of the current study compensated for the important reliable data on the flexural behaviour of CFFSS closed-section built-up beams, missing from the literature.
Highlights Flexural tests were performed on CFFSS closed-section built-up beams. Material properties, flexural strengths, moment–deflection response were measured. Rotation capacity and failure modes at failure were reported. Comparisons of test flexural strengths with design strengths were presented.
Cold-formed ferritic stainless steel closed-section built-up beams: Tests and flexural response
https://orcid.org/0000-0002-4457-4044
https://orcid.org/0000-0002-7144-6195
Abstract This article presents the first experimental study reported on the flexural behaviour of cold-formed ferritic stainless steel (CFFSS) closed-section built-up beams. Each closed-section built-up beam has been formed by connecting two lipped channels in the face-to-face arrangement and spot welded at intermediate locations along the beam span. Sixteen specimens have been fabricated and tested till failure under three-point bending and four-point bending. Cross-sectional aspect ratio, plate slenderness of the compression flange and moment gradient were the critical parameters varied for investigating their influence through tests. The CFFSS chemical, material properties, geometric imperfections, ultimate moment capacity, failure modes and deflection responses were recorded for bringing out meaningful interpretation of the test results. The ultimate moment values obtained from the tests have been compared with the nominal design moment capacity predicted by the current Australian Standard (AS/NZS), American Specification (SEI/ASCE-8-02), European Code (EN 1993-1-4) and Direct Strength Method (DSM) in North American Specification (AISI-S100:2016) and Continuous Strength Method (CSM). The test results of the current study compensated for the important reliable data on the flexural behaviour of CFFSS closed-section built-up beams, missing from the literature.
Highlights Flexural tests were performed on CFFSS closed-section built-up beams. Material properties, flexural strengths, moment–deflection response were measured. Rotation capacity and failure modes at failure were reported. Comparisons of test flexural strengths with design strengths were presented.
Cold-formed ferritic stainless steel closed-section built-up beams: Tests and flexural response
https://orcid.org/0000-0002-4457-4044
https://orcid.org/0000-0002-7144-6195
Abstract This article presents the first experimental study reported on the flexural behaviour of cold-formed ferritic stainless steel (CFFSS) closed-section built-up beams. Each closed-section built-up beam has been formed by connecting two lipped channels in the face-to-face arrangement and spot welded at intermediate locations along the beam span. Sixteen specimens have been fabricated and tested till failure under three-point bending and four-point bending. Cross-sectional aspect ratio, plate slenderness of the compression flange and moment gradient were the critical parameters varied for investigating their influence through tests. The CFFSS chemical, material properties, geometric imperfections, ultimate moment capacity, failure modes and deflection responses were recorded for bringing out meaningful interpretation of the test results. The ultimate moment values obtained from the tests have been compared with the nominal design moment capacity predicted by the current Australian Standard (AS/NZS), American Specification (SEI/ASCE-8-02), European Code (EN 1993-1-4) and Direct Strength Method (DSM) in North American Specification (AISI-S100:2016) and Continuous Strength Method (CSM). The test results of the current study compensated for the important reliable data on the flexural behaviour of CFFSS closed-section built-up beams, missing from the literature.
Highlights Flexural tests were performed on CFFSS closed-section built-up beams. Material properties, flexural strengths, moment–deflection response were measured. Rotation capacity and failure modes at failure were reported. Comparisons of test flexural strengths with design strengths were presented.
Cold-formed ferritic stainless steel closed-section built-up beams: Tests and flexural response
Karthik, C. (author) / Anbarasu, M. (author) / Dar, Mohammad Adil (author)
Thin-Walled Structures ; 180
2022-07-14
Article (Journal)
Electronic Resource
English
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