高强螺栓端板连接钢管柱节点在循环荷载作用下的力学性能分析

Performance Investigation on Mechanical Properties of End Plate Connection with High-Strength Bolts under Cyclic Loading

摘要: 为研究高强螺栓端板连接钢管柱节点在循环荷载作用下的力学性能，进行了3个连接件的循环加载试验，分析了钢管管壁厚度和螺栓规格对连接件承载力和刚度退化的影响。研究结果表明：增加管壁厚度和提高螺栓规格均能提高高强螺栓端板节点在同一位移量级下的承载力以及有效地减小端板连接件的刚度退化程度。

Abstract: In order to study the mechanical properties of end plate connection with high-strength bolts, three connection specimens were tested by cyclic loading test. The influences of the tube wall thickness and the diameter of bolts were analyzed. The experimental results show that increasing the tube wall thickness and the diameter of bolts can raise bearing capacity and reduce stiffness degradation of end plate connection with high-strength bolts at the same magnitude of displacement.