Experimental and numerical investigation on patch loading capacity of longitudinally stiffened hybrid titanium-clad bimetallic steel plate girder

Luo, Zeqiao; Shi, Yu; Xue, Xuanyi; Gao, Tingting

doi:10.1016/j.engfailanal.2023.107117

Cited by 18 publications

(1 citation statement)

References 62 publications

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“…The geometry and dimensions were all set to be same as that of beam specimens in experiments. The initial geometric imperfections were introduced in FE simulations of steel components by several authors [6,10,31]. It should be mentioned that this study mainly focused on the effects of cold working on the channel beams, thus the initial imperfections of cold-formed channels were disregarded.…”

Section: Establishment and Validation Of Steel Channel Beamsmentioning

confidence: 99%

Experimental Study of the Bending Performance of Cold-Formed Steel Channel Beams Considering the Corner Hardening Effect

Liu,

Xu,

Zhang

et al. 2023

Buildings

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Cold-formed steel channel beam components are increasingly used in lightweight steel buildings owing to the high strength–weight ratio. However, the influence of cold working processes, in relation to corner regions, and how this impacts the bending behavior of channel beams lacks thorough evaluation. In the present study, a series of coupon and bending tests were conducted and the numerical simulation and analytical derivation were supplemented, aiming to investigate the bending performance of cold-formed steel channel beams considering the reinforcement effect in corner regions. The results show that the engineering stress–strain relationships of the flat and corner coupons conformed to the trilinear models with different characteristic parameters. The yielding and ultimate strengths of the corner specimens was increased by 50% and 7%, respectively, compared to the flat coupons due to the cold-bending technique. The strain distribution of the cold-formed channel beams accord with the plane section while the stresses at the corners were 35% higher than those at the flanges, indicting the different mechanical response of the flat and corner regions. The component-based model for cold-formed steel channel beams was established to exactly describe the influence of the cold-bending action, which was greatly validated by the experimental and numerical data with the errors of typical parameters less than 9%.

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Section: Establishment and Validation Of Steel Channel Beamsmentioning

confidence: 99%