基于OpenSees的活性粉末混凝土梁柱节点抗震性能非线性分析  

Numerical simulation of seismic performance on reactive pocoder concrete beam-column joint based on Open Sees

作　　者：王德弘[1] 牟雨 鞠彦忠[1] 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012

出　　处：《混凝土》2014年第12期35-38,共4页Concrete

基　　金：国家自然科学基金项目资助(51378095)

摘　　要：活性粉末混凝土是一种具有超高强度、高耐久性和高韧性的超高性能水泥基材料,尤其适合用于框架结构中主要抗震构件。采用基于OpenSees的有限元非线性节点模型,对活性粉末混凝土梁柱节点进行了拟静力加载模拟,研究了不同轴压比下梁柱节点的抗震性能,得出了其滞回曲线和骨架曲线。结果表明:活性粉末混凝土梁柱节点具有良好的承载力和抗震性能,强度、刚度退化缓慢,延性较好。Reactive powder concrete reactive pocoder concrete is a new cementitious material with high strength ,durability and tough-ness.It is especially suitable for main seismic components of a RC frame.It takes a nonlinear model for beam-column joint based on OpenSees.Simulation on reactive pocoder concrete beam-column joint under reversed cyclic loading with different axial compression ratio was carried out.The hysteretic curve and skeleton curve are obtained.According to the results ,the reactive pocoder concrete beam-column joint has better bearing capacity and seismic performance.The strength and stiffness degradation is not obvious ,the ductility is better.

关 键 词：活性粉末混凝土 梁柱节点 滞回性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]