摘要
为确保大悬挑预应力混凝土斜交梁柱空间框架结构的抗震性能,通过模型试验,研究了2个预应力梁、柱节点试件的抗震性能。试验过程中研究了试件在混凝土开裂时各阶段的现象,并考虑了P-Δ滞回曲线、P-Δ骨架曲线、位移延性与变形能力、耗能能力等多种参数的影响。试验证明,预应力混凝土斜交梁柱节点在水平荷载作用下满足抗震要求和设计规范,可应用于工程中。
To ensure the large cantilever prestressed concrete seismic performance of skew beam-column space frame structure,through the model test,two prestressed beam and column joints were researched.Experiments studied the concrete cracking phenomenon of specimens at every stage,and considered the P-Δ hysteresis curve,P-Δ skeleton curves,displacement ductility and deformation capacity,energy consumption ability,and so on.Test certificated that prestressed concrete skew beam-column joint could meet the seismic requirements and design specification under the action of horizontal load,and could be used in engineering.
出处
《施工技术》
CAS
北大核心
2013年第14期109-112,共4页
Construction Technology
关键词
混凝土
预应力
梁柱节点
抗震性能
耗能
concrete
prestressing
beam-column joints
seismic performance
energy consumption
