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Local buckling behavior of high strength steel welded I-section flexural members under uniform moment
Flexural tests on full-scale I-section beams built up from Q460 and Q890 high strength steel subjected to uniform moment about their major axis were carried out in this article to investigate the effects of geometric and material properties on the local buckling behavior. Failure modes, load–displacement responses, load–strain curves, critical local buckling loads, ultimate resistances, and rotation capacities of the specimens were studied. Then the test results were compared with the design results from current specifications to examine the appropriateness of extrapolating current design method to high strength steel flexural member. Three-dimensional finite element models were established and validated against the experimental results accounting for material nonlinearity, initial geometric imperfections, and welding-induced residual stresses. A parametric study was performed using the validated finite element model, which revealed the variation of normalized ultimate moment with interactive plate slenderness. And the comparisons between parametric analysis results, test results, and design results from ANSI/AISC 360-10 and Eurocode 3 were conducted.
Local buckling behavior of high strength steel welded I-section flexural members under uniform moment
Flexural tests on full-scale I-section beams built up from Q460 and Q890 high strength steel subjected to uniform moment about their major axis were carried out in this article to investigate the effects of geometric and material properties on the local buckling behavior. Failure modes, load–displacement responses, load–strain curves, critical local buckling loads, ultimate resistances, and rotation capacities of the specimens were studied. Then the test results were compared with the design results from current specifications to examine the appropriateness of extrapolating current design method to high strength steel flexural member. Three-dimensional finite element models were established and validated against the experimental results accounting for material nonlinearity, initial geometric imperfections, and welding-induced residual stresses. A parametric study was performed using the validated finite element model, which revealed the variation of normalized ultimate moment with interactive plate slenderness. And the comparisons between parametric analysis results, test results, and design results from ANSI/AISC 360-10 and Eurocode 3 were conducted.
Local buckling behavior of high strength steel welded I-section flexural members under uniform moment
Shi, Yongjiu (author) / Xu, Kelong (author) / Shi, Gang (author) / Li, Yixin (author)
Advances in Structural Engineering ; 21 ; 93-108
2018-01-01
16 pages
Article (Journal)
Electronic Resource
English
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