摘要
采用二维拟静力试验方法对预应力混凝土和普通混凝土空间框架角节点进行了双向循环加载的试验研究,得到试件的滞回曲线.分析了各个试件的破坏形式、承载力、刚度、滞回曲线、骨架曲线和耗能并应用有限元方法进行数值分析,得出:双向水平荷载作用对角节点构件有明显的耦合作用和扭转效应,节点的破坏形式影响节点的耗能能力和延性,梁的高度也是影响节点破坏形式的重要原因之一.
Quasi-static experiments of prestressed concrete frame corner joint and RC frame corner joint are carried out under biaxial cyclic lateral loading. The relationship between force and displacement is obtained. Through the analysis of failure process,carrying capacity,stiffness,hysteretic curves,skeleton curves and dissipated energy,as well as finite element analysis was performed. It can be concluded that the coupling effect is obvious under biaxial lateral load,and torsional phenomenon exist in specimens,the failure patterns of corner joint affect the energy dissipation and ductility,and the height of beam is one of reasons on the failure patterns of corner joint.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第2期252-258,共7页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省科技厅科技三项资助项目(2007F5072)
关键词
预应力混凝土
空间框架
角节点
抗震
有限元分析
prestressed concrete
spatial frame
corner joint
seismic
finite element analysis
