双层双跨装配整体式预应力混凝土框架抗震试验研究  

Experiment study on seismic performance of two-story double-span assembled monolithic prestressed concrete frame

作　　者：李东彬 谢靓宇 李伟龙 柴彦凯 李红超 刘玉淼 高静贤 向容 Li Dongbin;Xie Liangyu;Li Weilong;Chai Yankai;Li Hongchao;Liu Yumiao;Gao Jingxian;Xiang Rong(China Building Technique Group Co.Ltd,Beijing 100013,China;China Academy of Building Research,Beijing 100013,China;Tongji Architectural Design(Group)Co.Ltd,Shanghai 200092,China)

机构地区：[1]中国建筑技术集团有限公司,北京100013 [2]中国建筑科学研究院有限公司,北京100013 [3]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《建筑科学》2022年第11期1-9,共9页Building Science

基　　金：住建部项目“新型预应力装配式框架结构体系研究及示范”(K20200101)。

摘　　要：为研究新型装配整体式预应力混凝土框架结构装配工艺及其抗震性能,设计制作了一榀双层双跨装配整体式预应力混凝土框架,对其构件制作、连接构造、装配工艺进行了验证,并进行了低周反复荷载试验,研究了其破坏形态、承载力、变形、耗能等抗震性能。试验结果表明:新型装配整体式预应力混凝土框架结构节点连接构造简单、装配便捷,结构破坏形态为梁铰延性破坏,延性系数大于4,极限位移角达1/22,变形能力和耗能能力良好,结构性能达到“等同现浇”。A two-story double-span assembled monolithic prestressed concrete frame is designed and manufactured.The connection structure and construction technology of prefabrication and assembling are verified.Based on static cyclic loads experiment,the seismic performance of the frame,such as failure mode,bearing capacity,deformation and energy dissipation,is studied.The experiment results indicate that the novel assembled monolithic prestressed concrete frame has the advantages of simple connection structure and convenient assembly.The failure mode of the structure is plastic hinge at the end of the beam,the ductility coefficient of the frame is greater than 4,and the ultimate displacement angle is 1/22.The frame shows good capacity of deformation and energy dissipation.The structural performance is close to that of cast-in-situ structure.

关 键 词：装配整体式 预应力混凝土框架 抗震性能 

分 类 号：TU378[建筑科学—结构工程]