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Flexural-torsional buckling of austenitic stainless steel I-section beam-columns: Testing, numerical modelling and design
Abstract The flexural-torsional buckling response and design of stainless steel I-section beam-columns are investigated in this paper. First, a series of laboratory tests on laser-welded stainless steel I-section beam-columns susceptible to flexural-torsional buckling is presented. The results obtained are supplemented by further data generated by means of numerical parametric studies on both conventionally arc-welded and laser-welded stainless steel members covering a wide range of member slenderness and combinations of loading. Existing provisions for the design of welded stainless steel I-section elements against flexural-torsional buckling are then assessed and found to require improvement. Finally, new formulae for the design of stainless steel I-section beam-columns susceptible to flexural-torsional buckling are proposed. The new proposals yield improved accuracy and consistency over existing provisions and their suitability for inclusion in the upcoming version of the European structural stainless steel design code EN 1993-1-4 is confirmed by reliability analysis in accordance with EN 1990.
Highlights Flexural-torsional bucking response of stainless steel I-section beam-columns is investigated. •Experimental study on laser-welded stainless steel I-section beam-columns undergoing flexural-torsional buckling are presented. •FE models able to mimic flexural-torsional buckling response of stainless steel beam-columns are created and validated. •Numerical parametric studies are performed, whose results are utilised to assess accuracy of existing design provisions. •New design provisions are established, whose reliability is verified against the criteria set out in EN 1990.
Flexural-torsional buckling of austenitic stainless steel I-section beam-columns: Testing, numerical modelling and design
Abstract The flexural-torsional buckling response and design of stainless steel I-section beam-columns are investigated in this paper. First, a series of laboratory tests on laser-welded stainless steel I-section beam-columns susceptible to flexural-torsional buckling is presented. The results obtained are supplemented by further data generated by means of numerical parametric studies on both conventionally arc-welded and laser-welded stainless steel members covering a wide range of member slenderness and combinations of loading. Existing provisions for the design of welded stainless steel I-section elements against flexural-torsional buckling are then assessed and found to require improvement. Finally, new formulae for the design of stainless steel I-section beam-columns susceptible to flexural-torsional buckling are proposed. The new proposals yield improved accuracy and consistency over existing provisions and their suitability for inclusion in the upcoming version of the European structural stainless steel design code EN 1993-1-4 is confirmed by reliability analysis in accordance with EN 1990.
Highlights Flexural-torsional bucking response of stainless steel I-section beam-columns is investigated. •Experimental study on laser-welded stainless steel I-section beam-columns undergoing flexural-torsional buckling are presented. •FE models able to mimic flexural-torsional buckling response of stainless steel beam-columns are created and validated. •Numerical parametric studies are performed, whose results are utilised to assess accuracy of existing design provisions. •New design provisions are established, whose reliability is verified against the criteria set out in EN 1990.
Flexural-torsional buckling of austenitic stainless steel I-section beam-columns: Testing, numerical modelling and design
Kucukler, Merih (author) / Gardner, Leroy (author) / Bu, Yidu (author)
Thin-Walled Structures ; 152
2019-12-10
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2019
Flexural buckling of welded austenitic and duplex stainless steel I-section columns
| Online Contents | 2016