单斜支撑加固震损窗间砖墙抗震性能试验研究  

Experimental study of seismic performance of earthquake-damaged brick walls between windows reinforced with monoclinic steel brace

作　　者：张波[1] Zhang Bo(School of Civil Engineering&Architecture,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学土木工程与建筑学院,陕西汉中723000

出　　处：《工程抗震与加固改造》2020年第5期155-159,共5页Earthquake Resistant Engineering and Retrofitting

基　　金：陕西省科技厅社会发展科技攻关项目(2016SF-420)。

摘　　要：钢支撑在抗震加固中应用广泛,通过对高宽比为1的4片墙体,其中2片为原墙,2片为单斜钢支撑单面加固的震损窗间墙,进行拟静力试验。试验发现原墙和加固墙体破坏形态相近,单斜支撑加固震损窗间墙的裂缝开展更缓慢和充分,水平承载力有一定提高,变形性能明显提高,滞回曲线更丰满。表明单斜支撑提高了震损窗间墙的抗震性能,可以认为是一种震损窗间墙快速和有效的加固方法。Steel bracing is widely used in seismic reinforcement.Four brick walls between windows with aspect ratio of 1 are made,the pseudo-static test on two earthquake damage walls strengthened by single-sided monoclinic steel brace and two unreinforced wall are conducted.The test results show that the failure pattern of the original wall is similar to that of the reinforced wall.After reinforcement,the crack development is more slow and full,the horizontal bearing capacity is increased,the deformation performance is obviously improved,and the hysteric loop is fuller.All of these results indicate that monoclinic bracing improves the seismic performance of seismic damaged brick wall between windows,and the proposed method is fast and effective to reinforce the wall between windows.

关 键 词：震损窗间墙 单斜支撑 加固 拟静力试验 抗震性能 

分 类 号：TU362[建筑科学—结构工程]