装配整体式钢筋混凝土框架节点位移角统计分析  

Statistical analysis of displacement angle of assembled monolithic reinforced concrete frame joints

作　　者：余文明 刘文锋[1,2] 王召猛 张华 YU Wenming;LIU Wenfeng;WANG Zhaomeng;ZHANG Hua(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China;Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]山东省蓝色经济区工程建设与安全协同创新中心,山东青岛266033

出　　处：《四川建筑科学研究》2019年第2期69-74,共6页Sichuan Building Science

摘　　要：收集了68个装配整体式框架节点在固定竖向荷载和低周反复荷载作用下的试验结果,分析回归出了装配整体式框架节点延性系数及其各位移角与轴压比、剪跨比和配箍特征值之间的关系。结果表明:延性系数随着轴压比和配箍特征值的增大而减小,随着剪跨比的增大而增大;随着轴压比和剪跨比的增大,屈服位移角、最大位移角和极限位移角均减小;随着配箍特征值的增大,屈服位移角、最大位移角和极限位移角均增大。并在此基础上比对了规范各性能水准下层间位移角限值,给出了各性能水准量化的建议值。Based on the collected test results of 68 assembled monolithic frame joints under constant axial load and low cyclic reversed loads,the relation of ductility coefficients and various displacement angles to axial pressure ratio,shear span ratio and stirrup characteristic values were regressed.The results indicate that the ductility coefficients decrease with the increase of the axial pressure ratios and the stirrup characteristic values,and increase with the increase of the shear span ratios.Yield displacement angles,maximal displacement angles and ultimate displacement angles decrease with axial pressure ratios and shear span ratios.Yield displacement angles,maximal displacement angles and the ultimate displacement angles increase with stirrup characteristic values.On this basis,the limit values of displacement angles under different performance levels in the criterion are compared,and the suggested values for quantification of performance levels are given.

关 键 词：装配整体式 延性系数 层间位移角 轴压比 剪跨比 配箍特征值 

分 类 号：TU375[建筑科学—结构工程]