后张无粘结混合装配式框架动力弹塑性分析  

Dynamic elastoplastic analysis of unboned post-tensioned hybrid precast concrete frame

作　　者：张晨 徐勋倩 蔡小宁[2] 孟少平[3] Zhang Chen;Xu Xunqian;Cai Xiaoning;Meng Shaoping(School of Transportation and Civil Engineering,Xinglin School,Nantong University,Nantong 226019,China;School of Civil Engineering,Huaihai Institute of Technology Lianyungarig 222005,China;Key laboratory of Concrete and Prestresaed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China)

机构地区：[1]南通大学交通与土木工程学院,杏林学院,江苏南通226019 [2]淮海工学院土木工程学院,江苏连云港222005 [3]东南大学混凝土及预应力混凝土结构教育部重点实验室,江苏南京210096

出　　处：《建筑科学》2019年第5期103-108,共6页Building Science

基　　金：国家自然科学基金项目(51508220);南通大学博士科研启动基金项目(2018B11);南通大学杏林学院自然科学基金项目(2016K129)

摘　　要：基于OpenSees平台,提出了后张无粘结混合装配式框架(PTHP)的有限元建模方法。合理选择了6条地震波,对该框架进行了动力弹塑性分析。罕遇地震下框架的层间位移角、梁端转角、柱端转角均满足规范要求。框架的出铰情况合理,属于"梁铰耗能"机制。预应力的损失很小,预应力筋始终处于弹性状态。The finite element modeling method of the PTHP frame is established by using the finite element software OpenSees. The article 6 seismic wave is selected to apply to the overall framework for dynamic elastoplastic analysis. The storey drift of structure,the rotation angle of beam-column joint and plastic hinge of bottom part of column can meet the specification deformation requirements under rare earthquake.The hinge of the frame is reasonable, which is accord to the "beam hinge energy dissipation mechanism". The loss of prestress is very small, and prestressed tendons are always in elastic state.

关 键 词：后张 无粘结 装配式 框架 动力弹塑性分析 

分 类 号：TU378.8[建筑科学—结构工程]