建筑结构学报2011,Vol.32Issue(6):60-67,8.
大型预制混凝土结构梁-柱-叠合板边节点抗震性能研究
Seismic behavior of exterior beam to column joints with layered slab of large precast concrete structures
摘要
Abstract
In order to analyze the seismic behavior of exterior beam to column joints of large multi-story precast concrete structures, an experimental study on full-scale beam to column joint models subjected to high axial loading and reversed cyclic loading was conducted.The failure pattern, hysteretic characteristic, skeleton curve, displacement ductility and energy dissipation were analyzed.The numerical joint model taking the rebar slippage into consideration was developed based on the OPENSEES software and validated against the experimental results.Then the parametric analysis was performed.The study results indicate that the overall seismic performance of the precast joint is almost the same as that of a monolithic joint.Column section dimension has a greater impact on the capacity of joint than the loading level of the column, rebar diameter has an impact on the unloading stiffness and pinching behavior, instead of on the capacity of joint.关键词
装配式框架/边节点/低周反复荷载试验/数值模型/抗震性能Key words
precast frame structure/ exterior joint/ low-cycle reversed loading test/ numerical model/ seismic performance分类
建筑与水利引用本文复制引用
陈适才,闫维明,王文明,高杰..大型预制混凝土结构梁-柱-叠合板边节点抗震性能研究[J].建筑结构学报,2011,32(6):60-67,8.基金项目
国家自然科学基金项目(50908006,50878010). (50908006,50878010)