Analysis on shear behavior of high-strength bolts connection |
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Authors: | Yongjiu Shi Meng Wang Yuanqing Wang |
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Affiliation: | 1.Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering,Tsinghua University,Beijing,China |
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Abstract: | Because of high cost of tests and numerical calculation using solid element of high-strength bolts connection in steel frameworks,
it is important to find an accurate and simplified approach to describe the shear behavior of high-strength bolts connection.
The paper aims to find a spring element to simulate the shear behavior instead of solid element in structure. Firstly, solid
element model of high-strength bolt connection is established, which is proved correct and applicable comparing with existing
typical shear tests. Then, base on the reliability of finite element model, the shear behavior of bolts connection is further
discussed through a large number of parameter analyses. The three feature points and four stages of the simplified shear model
are calibrated according to tests and calculation results. A simplified shear behavior model and hysteretic criterion of high-strength
bolts connection are proposed. According to cases study, feasibility of the proposed model is validated. The proposed model
gives a simple process to provide quite accurate results, which provides a great tool for engineering applications. |
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Keywords: | |
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