Experimentally Validated Numerical Studies of Angle Joint Connected with One Bolt

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

International Journal of Steel Structures Pub Date : 2026-05-21 DOI:10.1007/s13296-026-01055-w

Mateusz Dryzek, Witold Cecot

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Abstract

Bolt lap joints are the most common types of connections in transmission towers structures. In the paper, experimentally validated finite element method models of angle profile connected with one bolt are presented. Several issues were addressed in these models including non-linear material parameters, convergence of the analysis, and the influence of the thread on the bolt. Three different model types were compared with the experimental load–displacement diagrams. The most advanced model showed good correlation especially in the elastic portion of load transfer by the bolt bearing due to consideration of a thread on a bolt. A subsequent parametric analysis of the model showed that friction coefficients, bolt prestressing force and ultimate tensile stress of the material play an important role in these connections. Lastly, the results of the load carrying capacity of the joint from the analysis were compared with the results from the formulas from the Eurocode 3 and EN 50341-1 standards. The numerical model supports the Eurocode 3 approach in which net cross-section fracture depends on the location of the bolt. The conclusion drawn from this work can be used for reliable finite element modeling of bolted joints.

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单螺栓连接角接头的数值研究

螺栓搭接是输电塔结构中最常见的连接形式。本文建立了经实验验证的单螺栓连接角轮廓有限元模型。在这些模型中解决了几个问题，包括非线性材料参数、分析的收敛性以及螺纹对螺栓的影响。对比了三种不同模型类型的荷载-位移试验图。最先进的模型由于考虑了螺栓上的螺纹，尤其在螺栓支座传递荷载的弹性部分表现出较好的相关性。模型的参数分析表明，摩擦系数、锚杆预应力和材料的极限拉应力在这些连接中起重要作用。最后，将分析得到的节点承载能力计算结果与欧洲规范3和EN 50341-1标准的计算公式进行了比较。该数值模型支持欧洲规范3的方法，其中网截面断裂取决于锚杆的位置。所得结论可用于可靠的螺栓连接有限元建模。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Steel Structures 工程技术-工程：土木

CiteScore

2.70

自引率

13.30%

发文量

122

审稿时长

12 months

期刊介绍： The International Journal of Steel Structures provides an international forum for a broad classification of technical papers in steel structural research and its applications. The journal aims to reach not only researchers, but also practicing engineers. Coverage encompasses such topics as stability, fatigue, non-linear behavior, dynamics, reliability, fire, design codes, computer-aided analysis and design, optimization, expert systems, connections, fabrications, maintenance, bridges, off-shore structures, jetties, stadiums, transmission towers, marine vessels, storage tanks, pressure vessels, aerospace, and pipelines and more.