摘要
进行了5个足尺异形柱框架顶层边节点受剪性能的试验研究。对核心区开裂、0.2mm裂缝,屈服、极限、破坏阶段的裂缝开展,梁纵筋及节点箍筋屈服乃至节点破坏的特征等进行观察,量测了节点核心、翼缘正面、节点与梁端连接处和箍筋的应变数据,记录了梁端荷载位移曲线。在实测数据的基础上着重分析了各试件的耗能、刚度、延性等抗震性能以及肢长对节点受剪性能的影响。
Five prototype top storey exterior joints in RC frame structure with special-shaped columns are tested. Through the experiment, initial crack, 0. 2mm crack phrase, yielding phrase, extremity and failure stage are observed. At the same time, the strains of joint concrete, longitudinal reinforcement of beam, wing concrete and stirrup on each phrase are measured, and the beam-tip load-displacement curve is recorded. On the basis of measured data, the earthquake-resistant characteristics such as energy dissipation, stiffness and ductility are analyzed.
出处
《建筑结构》
CSCD
北大核心
2006年第7期32-35,共4页
Building Structure
关键词
异形柱框架
顶层边节点
受剪性能
低周反复荷载
抗震性能
RC frame structure
special-shaped columns
top storey
exterior joint
shear properties
aseismic characteristics
