T型厚壁隔板贯通式节点抗震性能试验

为了研究方钢管混凝土柱与H型钢梁连接的隔板贯通式节点的动力特性及抗震性能,本试验设计了三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。通过分析构件在低周反复荷载作用下所得的滞回曲线求得该试件的骨架曲线和等效粘滞系数来研究它们的耗能能力。试验接着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分析,探讨了试件的隔板挑出长度,轴压比等参数对节点抗震性能的影响以及其应力传递规律。在分析的基础上得到一些结论: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。

T-type thick-walled partitions through seismic behavior of joints

In order to study the dynamic characteristics and seismic performance of the CFRT columns and H-shaped steel beam connection through the node of the partition,this test design through beam-column joints of the full scale of the three low-cyclic loading under the action of T-shaped baffle quasi-static test specimen.By analyzing the components in the low cyclic loads obtained from the hysteresis curve to obtain the specimen,the skeleton curve and the equivalent viscosity coefficient to study the energy dissipation capacity.Test followed by analysis of the specimen failure process and failure characteristics,node ductility,energy dissipation and seismic performance indicators discussed partition singled length of the specimen,the axial compression ratio and other parameters on the seismic behavior of and stress transfer law.Some conclusions based on the analysis:clapboard linking nodes have a higher bearing capacity and good ductility,strong energy dissipation capacity and seismic performance.