翼缘长与梁高的比值对Z形柱梁柱节点抗震性能的影响  

Effect of the ratio of flange length to beam height on the seismic behavior of the Z-column joints

作　　者：杨俊杰[1] 徐良德[1,2] 崔钦淑[1] 朱敏园 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310032 [2]常山县现代农业园区管委会,浙江常山324200 [3]杭州市乔司职业高级中学,浙江杭州311100

出　　处：《浙江工业大学学报》2013年第1期76-79,共4页Journal of Zhejiang University of Technology

基　　金：浙江省重大科技专项社会发展项目(2010C13012)

摘　　要：Z形截面柱框架结构是建筑中较常见的异形柱结构形式之一,对其节点的研究较少,在现行的规范中也未将其列入.针对钢筋混凝土Z形截面柱框架节点的抗震性能进行了试验研究,观察在不同翼缘长与梁高的比值条件下节点区域裂缝开展规律和破坏特征.在此基础上,对滞回曲线的耗能能力进行分析.最后,根据节点的斜压杆模型理论,对节点抗震性能进行机理上的分析.研究结果表明:翼缘长与梁高比值在0.727～1.250之间时,节点的抗剪承载力总体上呈上升的趋势.Z-shaped cross-section column is one of widely used specially shaped columns frames structures. It is not included in current specification for lack of thorough study. The experimental research was carried out on the seismic behavior of Z-shaped cross-section column joints in a R. C frame structure. The failure characteristics and the law of crack growing in the area of the joint were observed under the ratio of different flange length and beam height. Based on the test results, the analysis of hysteretic curve and the energy dissipation ability were presented. Finally, according to the theoretical model of raking strut of node, mechanism analysis on the joint seismic performance was made. The results show that in the overall there is an upward trend for the shear capacity of the joint on condition that ratio of flange length to the beam height of is between 0. 727-1.25.

关 键 词：钢筋混凝土Z形截面柱 节点 抗震性能 翼缘 梁高 承载力 

分 类 号：TU375.3[建筑科学—结构工程]