Abstract Net section resistance in bolted cold-formed steel angles of members under tension is analyzed in this work. The efficiency reduction due to shear lag and eccentricity effects in bolted connections is studied using finite element models implemented in ABAQUS software. The nonlinearities of the steel material and the contact between elements are considered in the numerical models, and their results are in good agreement with experimental tests. A parametric study is conducted in this work using Finite Element (FE) analyses. A large number of experimental tests reported in the literature is also summarized in this work. A new expression of easy application for net section reduction coefficient is found, which allows improving the prediction of the nominal resistance of the net section.

中文翻译：

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受拉螺栓冷弯型钢角钢的净截面阻力

摘要 本文分析了受拉构件冷弯型钢角钢螺栓净截面阻力。使用在 ABAQUS 软件中实现的有限元模型研究了螺栓连接中由于剪切滞后和偏心效应引起的效率降低。数值模型考虑了钢材的非线性和单元之间的接触，其结果与试验结果吻合较好。在这项工作中使用有限元 (FE) 分析进行了参数研究。在这项工作中还总结了文献中报告的大量实验测试。找到了一种新的净截面折减系数的简单应用表达式，它可以改进对净截面标称电阻的预测。