摘要
为研究高层预制装配式混凝土结构的抗震性能,并为建立该类结构装配式节点的抗震设计方法提供依据,采用足尺模型试验方法,对结构底层不同连接方式的大尺寸、高轴压预制梁-柱-叠合板装配中节点试件在低周往复荷载作用下的开裂破坏形态、滞回特性、骨架曲线、延性性能、耗能能力、拼缝的影响等性能进行了研究,结果表明:叠合板以及预制梁纵筋、预制柱纵筋的连接方式对整体节点的抗震性能具有重要影响;对于预制梁纵筋锚固连接的中节点,钢筋存在滑移现象,对于预制梁纵筋贯穿连接的中节点,具有与现浇中节点相当的耗能能力与综合抗震性能。
In order to analyze the seismic behavior of high-rise precast concrete structures and develop guidelines for structural design,an experiment was conducted on precast layered slab and beam to column interior joints subjected to high axial loading and reversed cyclic loading with full-scale models,and the seismic performance was studied.The failure pattern,hysteretic characteristics,skeleton curve,displacement ductility,energy dissipation and effect of abutted seam were analyzed.The results indicated that the layered slab and the steel connection type for the beam have great influence on the seismic performance;Steel slippage appeared in the anchorage interior joint;Energy-dissipating capacity and the overall seismic performance of steel-through interior joint were almost equal to that of the monolithic joint.
出处
《工程力学》
EI
CSCD
北大核心
2012年第2期135-141,共7页
Engineering Mechanics
关键词
预制混凝土
节点
抗震性能
低周反复荷载试验
足尺模型
precast concrete
joint
seismic performance
low-cycle reversed loading test
full-scale model
