钢筋混凝土分体柱框架边节点抗震性能的试验研究

Experimental Study on Seismic Behavior of Exterior Beam column Joints of Reinforced Concrete Frame with Split Columns

通过 4根钢筋混凝土分体柱框架边节点在较高轴压比和低周反复水平荷载作用下的试验研究 ,分析了分体柱框架边节点的裂缝出现荷载、最大承载能力、破坏形态及其滞回特性等抗震性能 ;探讨了节点上下层柱全部或部分采用分体柱对框架边节点抗震性能的影响 ;研究了过渡区对分体柱框架边节点受力性能的影响 ;

Based on the experimental study on four exterior beam column joints of RC frame with split columns under high axial compression ratio and horizontal cyclic loading,the cracking load,maximum bearing capacity,failure pattern and hysteresis property of the joints are analyzed in detail.The influence on the seismic behavior of the joints,in which all or part of the columns up or below the joints are replaced by the split columns,is explored.And,the influence of the transition regions of the split columns on the seismic behavior of the joints is investigated.Finally,some suggestions for designing the beam column joints of RC frame with split columns are given,which is much useful to actual engineering design.