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Structural behavior of tension joint with high-strength bolted split-tee
International Journal of Steel Structures ( IF 1.5 ) Pub Date : 2009 , DOI: 10.1007/bf03249484
Seong-Hui Lee , Jin-Ho Kim , Sung-Mo Choi

The strength and behavior of split-tee connections that are applicable to all tensile connections with high-strength bolts have been studied in many countries. The design code of each country (AISC, Eurocode 3) does not consider various field conditions, however, such as the painting of the connection surface, the length of the bolt shank, and the preload. Moreover, the previous studies (Bahaari) that used the link element on the preload of the bolt could not predict the correct behavior of high-strength bolts. In this study, to evaluate the tensile capability of split-tee connections, a total of 20 split-tee specimens with two bolts each were fabricated and tested. The experiment parameters that were used were the thickness of the T-flanges, painting, preload, and the length of the bolt shank. The joint stiffness of split-tee connections was compared with the stiffness equation of Faella et al., and finite-element method analysis with Ansys 8.0 was conducted. Further, to verify the reliability of the highstrength-bolt model, the load-to-bolt stress relation in the experiment test and the analysis results were compared.

中文翻译:

高强螺栓三通张拉接头的结构性能

在许多国家已经研究了适用于所有高强度螺栓拉伸连接的三通连接的强度和性能。每个国家的设计规范(AISC,欧洲规范3)并未考虑各种现场条件,例如连接表面的涂漆,螺栓杆的长度和预紧力。而且,先前的研究(Bahaari)在螺栓的预紧力上使用连接元件,无法预测高强度螺栓的正确性能。在这项研究中,为了评估分叉三通的抗拉能力,总共制造并测试了20个分叉三通的样本,每个样本带有两个螺栓。使用的实验参数是T型法兰的厚度,涂装,预紧力和螺栓杆的长度。等人,并使用Ansys 8.0进行了有限元方法分析。此外,为了验证高强度螺栓模型的可靠性,比较了实验测试中的荷载与螺栓应力关系以及分析结果。
更新日期:2020-09-14
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