型钢高强混凝土短肢剪力墙-连梁节点抗震性能试验研究  

Experimental study on the seismic performance of joints of coupling beam and steel reinforced high-strength concrete short-leg shear wall

作　　者：柯晓军[1,2] 苏益声[2,3] 陈宗平[2,3] 薛建阳[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]广西大学土木建筑工程学院,广西南宁530004 [3]广西防灾减灾与工程安全重点实验室,广西南宁530004

出　　处：《地震工程与工程振动》2013年第1期61-66,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50968003);‘八桂学者’建设工程专项经费资助;广西理工科学实验中心重点项目(LGZX201102)

摘　　要：通过4个型钢高强混凝土短肢剪力墙-连梁节点试件和1个高强混凝土短肢剪力墙-连梁节点试件的低周反复荷载试验,主要研究配钢形式、轴压比和连梁结构类型对节点的滞回特性、变形能力及耗能能力等性能的影响。结果表明:型钢高强混凝土短肢剪力墙-连梁节点的滞回曲线饱满,承载力、刚度以及抗震性能较高强混凝土短肢剪力墙节点均有所改善,所有试件的延性均小于3,极限层间位移角均小于1/100,等效黏滞阻尼系数在0.17～0.24之间,表现出其延性和抗倒塌能力较差,耗能能力较好。Four SRHC short-leg shear wall and coupling beam joints and one reinforced high-strength concrete （RHC） short-leg shear wall and coupling beam joint were designed for the low cyclic loading test. The influencesof hysteretic behavior, deformability and energy dissipation capacity on the main variable parameters of steel type, axial compression ratio and beam type were studied. Results indicate that the hysteretic hoops of SRHC short-legshear wall and coupling beam joints are plump, bearing capacity, stiffness and seismic performance are higher than RHC short-leg shear wall and coupling beam joint. But ductility is less than three, ultimate story drift is less than1/100, and equivalent viscous damping coefficients vary from 0. 17 to 0. 24. It shows that all specimens have poor ductility, poor anti-collapse capacity, and higher energy dissipation capacity.

关 键 词：型钢混凝土 高强混凝土 短肢剪力墙 节点 抗震性能 

分 类 号：TU398[建筑科学—结构工程]