后张预应力加固砖墙抗震性能研究及工程应用  

Research and application on seismic behaviors of brick walls retrofitted with post-tensioned tendons

作　　者：刘航[1] 华少锋[1,2] 

机构地区：[1]北京市建筑工程研究院有限责任公司,北京100039 [2]北京建筑工程学院,北京100044

出　　处：《福州大学学报（自然科学版）》2013年第4期403-409,共7页Journal of Fuzhou University(Natural Science Edition)

基　　金：北京市科技计划资助项目(D131100003713003)

摘　　要：提出采用后张预应力技术对砖混墙体进行抗震加固的新技术,并进行8片试验墙体在水平低周反复荷载下的试验研究.对比分析了未加固墙体与加固墙体的破坏形态和受力特点.试验结果表明,后张预应力加固砖砌体墙体可以显著提高墙体的延性和抗剪承载力,改善破坏形态.A new seismic retrofitting technology of using post-tensioning tendons to retrofit brick wall structures was presented and eight brick walls retrofitted with post-tensioned tendons were tested under lateral low-cyclic reversed load.Mechanical behaviors and failure modes of the seismically retrofitted brick walls using post-tensioning were compared to the response of a non-retrofitted brick wall.It could be found that the ductility and the shear capacity of the brick wall retrofitted using post-tensioned tendons could be significantly improved,and the failure modes were also enhanced.

关 键 词：后张预应力 加固 砖墙 抗震 施工工艺 

分 类 号：TU362[建筑科学—结构工程]