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为研究空间剖分T型钢半刚性梁柱连接节点的抗震性能,以钢框架中柱节点为研究对象,对2个空间剖分T型钢连接节点模型,2个平面剖分T型钢连接节点模型和1个空间刚性节点模型进行了以柱端为加载模式的空间拟静力试验。通过试验现象分析了不同节点变形特性、塑性发展及破坏模式;由试验数据分析了不同节点的强度、转动刚度、滞回特性、延性系数和耗能特性。研究了空间剖分T型钢连接节点与空间刚性节点和平面剖分T型钢连接节点的受力差异性。研究成果表明:空间半刚性节点在空间荷载作用下与平面半刚性节点在平面荷载作用下具有不同的受力特性。
In order to study the seismic performance of space-splitting T-beam semi-rigid beam-column connections, two mid-column joints of steel frame are studied. Two models of T-beam connection nodes, A space rigid node model was tested in a space pseudo-static test with column ends as loading mode. The deformation, plasticity and failure modes of different joints were analyzed through the test phenomenon. The strength, rotational stiffness, hysteretic characteristics, ductility coefficient and energy dissipation characteristics of different joints were analyzed by experimental data. The force difference of space division T-beam connection node, space rigid node and plane split T-section steel connection node are studied. The research results show that the space semi-rigid joints have different stress characteristics under the plane load under the space load and semi-rigid plane joints.