高剪压比钢筋混凝土框架夹心节点抗震性能研究  

Seismic Load Tests on Reinforced Concrete Beam-Column Sandwich Joints with High Shear Stress

作　　者：李英民[1] 刘建伟[1] 郑清 夏洪流[1] 赵腾飞[1] 江正[1] 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]成都基准方中建筑设计事务所,成都610017

出　　处：《重庆建筑大学学报》2007年第4期44-48,94,共6页Journal of Chongqing Jianzhu University

摘　　要：完成了7个高剪压比钢筋混凝土框架夹心节点试件的低周交变荷载试验,试验过程中夹心节点试件表现出较好的受力、变形、耗能性能和较高的位移延性,多数试件因节点剪切破坏失效,没出现核心区受压破坏的情况。虽然夹心节点的某些性能如梁筋的粘结滑移性能等相对传统节点更为不利,但其综合性能仍然能够满足结构抗震设计的要求。Seven reinforced concrete Beam-Column sandwich joint specimens were tested under cyclic load. The performances of these specimens consisting of loads resistance, deflection, ductility, displacement, energy dissipation could satisfy the requirement of structures for seismic design. The phenomena that concrete in joint region was crushed by axial load or eccentric load were never observed,and final failure for a multitude of specimens occurred by shear force. Though a few of performances such as beam bar anchorage capacity were not as well as those of traditional joints ,it is feasible for sandwich joints used while establishing structures.

关 键 词：夹心节点 抗震性能 位移延性 失效模式 钢筋粘结滑移 

分 类 号：TU375.4[建筑科学—结构工程]