高性能砂浆阻尼填充墙框架抗震性能研究  

Study on seismic behaviors of damped infill wall frame with high performance mortar of damped layers

作　　者：汪梦甫[1] 王强[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《地震工程与工程振动》2016年第5期21-34,共14页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51578225;51278181);教育部博士点基金项目(20120161110022)~~

摘　　要：通过拟静力试验,得到了高性能砂浆阻尼层较为合理的构造形式,即上下错缝构造形式的阻尼层。为了验证上下错缝高性能砂浆阻尼层的有效性与合理性,本文设计了一榀单层单跨的设置高性能砂浆阻尼层的填充墙框架,对其进行拟静力试验,研究其力学性能,采用ABAQUS软件对其进行数值模拟和参数分析,并与已有阻尼填充墙框架抗震性能进行了比较。结果表明:与现有填充墙框架相比,采用新型高性能砂浆阻尼层可以在一定程度上改善砌体填充墙的破坏模式,延缓和减轻了砌体填充墙的破坏;高性能砂浆阻尼层填充墙框架的滞回曲线饱满,耗能能力强,延性大幅提高。此外,阻尼层厚度和轴压比对高性能砂浆阻尼填充墙框架的受力性能具有一定影响,在一定范围内,随阻尼层厚度的增大,承载力和延性都得到提高,随着轴压比的增大,承载力明显提高,但相应的延性下降也较快。In this paper, several experiments on high performance mortar of damped layer were carried out ,and theconstruction scheme that the damped layer staggered up and down is regarded as a better damped layer. In order toverify the effectiveness and rationality of the staggered up and down damped layer, an one-story one-bay damped in-fill wall frame with the staggered up and downdampedlayer was designed, and its quasi-static test was done.Meanwhile, the numerical simulation and parametric analysis of the test damped infill wall frame was finished byusing the software ABAQUS. The experimental and computing results show that compared with the increase of thepresent damped infill wall frame, the damped infill wall frame with high performance mortar of damped layer hasmore reasonable failure mode and lighter damage, and also has fuller hysteresis curve, better energy dissipation ca-pacity and higher ductility. Besides, the thickness of damped layer and axial-pressure ratio have an effect on themechanical performance of the proposed damped infill wall frame. With the increase of the thickness of damped lay-er, the strength and ductility of the proposed damped infill wall frame are improved ; with the increase of the axial-pressure ratio, the strength of the proposed dampedposed damped infill wall frame is decreased.

关 键 词：高性能砂浆 阻尼层 阻尼填充墙框架 拟静力试验 数值模拟 

分 类 号：TU317.1[建筑科学—结构工程]