隔板贯通式节点抗震性能试验研究

为了研究方钢管混凝土柱与钢梁连接的隔板贯通式节点的抗震性能，设计了一个低周反复荷载作用下的T字形足尺隔板贯通式梁柱节点试件的拟静力试验。通过研究拟静力试验的滞回曲线来分析研究它的耗能能力。并分析了试件的破坏过程及破坏特征，对节点的延性、能量耗散等抗震性能指标进行了深入的研究，采用ANSYS程序对它进行了有限元分析，探讨了试件的隔板厚度，核心混凝土强度等参数对节点抗震性能的影响。通过研究得出隔板贯通式节点有较高的承载力和较好的延性，较强的耗能能力和抗震性能。

Study on the seismic performance of the connections with trough diaphragms

In order to investigate the seismic performance of diaphragm - through joint between con- crete -filled square steel tubular column and steel beam, a quasi - static experiment under low re- versed cyclic load of one full - size T - shaped specimen of diaphragm through style beam - column joints was designed. With the hysteretic hoops acquired from the experiment, the skeleton curves of specimen and the equivalent viscosity coefficient, with which the energy dissipation of the joint may be weighted, were calculated. The failure process and feature of the specimen were described and ductility, energy dissipation were analyzed. By using ANSYS software, this paper discussed the influ- ence of the seismic performance by the thickness of protrusion of the diaphragm and the strength of the concrete core. Based on above all, we can get a conclusion that the diaphragm -through style beam - column joint have a higher bearing capacity and good ductility, energy dissipation capacity and has a strong seismic performance.