钢筋混凝土分体柱框架梁柱中节点抗震性能的研究

本文通过对较高轴压比和低周反复荷载下的3个钢筋混凝土分体柱框架梁柱中节点和1个对比整截面柱框架梁柱中节点试件的试验研究，分析了节点核芯区的开裂荷载、最大承载能力、破坏形态及其滞回特性等抗震性能；研究了节点上下层柱的分体形式和分体柱过渡区的设置对节点核芯区抗震性能的影响；并给出了分体柱框架梁柱节点的设计建议。

Research on Seismic Behavior of Interior Beam-column Joints of Reinforced Concrete Frames with Split Columns

In this paper,the experimental study on three interior beam-column joints of RC frame with split columns and one interior beam-column joint of ordinary RC frame under higher axial compressive ratio and cyclic loading for comparison are performed. The cracking loading, maximum bearing capacity, failure pattern and hysteresis property of the joint zone are investigated,and the influences of different splitting types and the setting of transition region of the split columns on the seismic behavior of the joint zone are analyzed.Finally,some suggestions on the design of the interior beam-column joints of RC frames with split columns are given.