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首页> 外文期刊>SIAM journal on applied dynamical systems >Reinforced connection for upgrading strength and efficiency of single angle tension members
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Reinforced connection for upgrading strength and efficiency of single angle tension members

机译：加强连接，用于提升单角张力成员的强度和效率

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摘要

Single angle tension members are commonly connected by bolting through one leg. Stress concentration and shear lag effects promote the angle failure at the connection region. This angle failure reduces the angle ultimate tensile strength and efficiency of the material. This study proposes a reinforced connection to upgrade the single angle tension strength of the member and its material efficiency. A lug angle was nested into the angle member and bolted to the gusset plate and the angle by the lead bolt in the connection. At some distance, the outstanding legs of the angle and lug angle were bolted. A total of 17 specimens were fabricated and tested until failure. Finite element analysis was performed to model the behavior of the tested specimens and to study the different parameters that may affect the connection's capacity. The proposed reinforced connection increased the tensile strength of the angle and the angle material efficiency by up to 35%. An empirical formula was proposed, and design recommendations are presented.
机译：单角度张力构件通常通过螺栓通过一条腿连接。应力浓度和剪切滞后效果促进连接区域的角度故障。该角度故障降低了角度终极拉伸强度和材料效率。本研究提出了一种加强连接，以提高构件的单角张力强度及其材料效率。将凸耳角嵌套在角度构件中并用连接中的引线螺栓螺栓连接到角撑板。在一定距离处，角度和凸耳角的出色腿被螺栓固定。总共制备17个标本并测试直至发生故障。进行有限元分析以模拟测试标本的行为，并研究可能影响连接容量的不同参数。所提出的增强连接将角度的拉伸强度和角度材料效率提高至多35％。提出了经验公式，并提出了设计建议。

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