基于纤维模型的装配式预应力混合梁柱节点抗震性能分析  

SEISMIC ANALYSIS OF PREFABRICATED PRESTRESSED CONCRETE HYBRID BEAM-COLUMN JOINT BASED ON FIBER ELEMENT

作　　者：张晨[1,2] 孟少平[2] 

机构地区：[1]南通大学建筑工程学院,江苏南通226019 [2]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

出　　处：《建筑技术》2014年第12期1133-1136,共4页Architecture Technology

基　　金：交通部科技项目(2012319813260);江苏省高校自然科学基金资助项目(13KJB560011)

摘　　要：为了评价新型装配式预应力混合梁柱节点的抗震性能,采用有限元软件Opensees对一框架边节点进行低周往复荷载下的抗震性能分析。建立了基于纤维模型的有限元计算模型,通过与试验结果的对比,证实了数值分析的正确性与合理性。在此基础上,分析得到了节点的荷载-位移滞回曲线、能量耗散系数、刚度退化系数和延性系数等指标。结果表明该节点具有良好的抗震性能,且具有施工方便、构配件可实现标准化生产等优点。In order to evaluate the seismic performance of the new prefabricated prestressed concrete hybrid beam-column joint, a side joint is analyzed by Opensees under low reversed cyclic loading. The finite element model is established based on the fiber element. Compared to the experimental data, the results obtained by finite element analysis are proved to be correct and reasonable. Furthermore, the Force- displacement hysteretic curve, the coefficient of energy dissipation, the stiffness degradation coefficient and ductility factor are obtained. The results indicate that the seismic performance of this joint is excellent and is worth popularizing because of the convenient construction and mass standardized production.

关 键 词：纤维模型 装配式 预应力 混合梁柱节点 

分 类 号：TU757[建筑科学—建筑技术科学]