EFFECTIVE MODULUS METHOD (EMM) CONCEPT APPLIED TO THIN-WALLED STEEL BEAMS AFFECTED BY LOCAL-DISTORTIONAL INTERACTION

ce/papers Pub Date : 2024-03-27 DOI:10.1002/cepa.3039
Luís Prola, Pedro Gala, Rui B. Ruben, Cristiano Monteiro, Ana Simões
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Abstract

The Effective Modulus Method (EMM), which simulates the effects of local and distortional post-buckling to establish simplified design methodologies concept, is applied to the determination of the beam strength. This methodology was presented before [1], where the authors tested the results in columns, in comparison with experimental tests. In this approach, local and distortional post-buckling effects are simulated by changing the mechanical characteristics (namely the elasticity modulus) of the cross-section of the members. Specifically, the paper presents (i) the proposal of a new design methodology for beams affected by local and distortional buckling modes interaction and (ii) the comparison with experimental tests available in the literature.

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将有效模量法(emm)概念应用于受局部变形相互作用影响的薄壁钢梁
有效模量法(EMM)模拟了局部和变形后屈曲的影响,建立了简化设计方法的概念,被应用于梁强度的确定。这种方法曾在文献[1]中介绍过,作者将其结果与实验测试结果在柱子上进行了对比。在这种方法中,通过改变构件横截面的机械特性(即弹性模量)来模拟局部和扭曲的屈曲后效应。具体而言,本文介绍了(i)针对受局部和扭曲屈曲模式相互作用影响的梁提出的新设计方法,以及(ii)与文献中现有实验测试的比较。
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