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为了解火灾下高强度钢端板连接的性能,利用ABAQUS软件对其进行了数值模拟。数值分析得到的弯矩-转角关系、失效模式和连接的屈服线形状等与典型的试验结果相符。试验结果验证了有限元分析结果的精确性,说明有限元方法能够高效、经济、准确地研究高强度钢端板连接的抗火性能。因此,该数值分析方法能够用于预测室温和各种火灾情况下高强度钢端板连接的最大弯矩。
In order to understand the performance of high-strength steel end-plate connections under fire conditions, numerical simulations were carried out using ABAQUS software. Numerical analysis of the moment-angle relationship, the failure mode and the shape of the yield line are consistent with the typical experimental results. The test results verify the accuracy of the finite element analysis results, indicating that the finite element method can efficiently, economically and accurately study the fire resistance of high strength steel end plate connections. Therefore, this numerical analysis method can be used to predict the maximum bending moment of high strength steel end plate connections at room temperature and in various fire conditions.