以UHPC加固历史建筑砌体墙的伪静力试验研究  

Study on Pseudo-Static Test of Masonry Walls Reinforced with UHPC in Historical Building

作　　者：位三栋 彭斌[1] 郑七振[1] 龙莉波 马跃强 陈刚[1] WEI Sandong;PENG Bin;ZHENG Qizhen;LONG Libo;MAYueqiang;CHEN Gang(School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China;Shanghai Construction No.2 （Group） Co., Ltd., Shanghai 200080, China;Shanghai Engineering Research Center of Top-down Method, Shanghai 200080, China)

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]上海建工二建集团,上海200080 [3]上海建筑逆作法工程研究中心,上海200080

出　　处：《建筑施工》2018年第5期809-811,共3页Building Construction

基　　金：上海市科学技术委员会科研计划项目(16DZ1201600)

摘　　要：为研究超高性能混凝土(UHPC)在历史砖砌体墙加固方面的应用效果,设计制作了2片砌筑砂浆强度低于1 MPa的仿历史砖墙,其中一片砌筑后不加固,在进行试验破坏后再用UHPC加固,另外一片砌筑后直接用UHPC加固。通过伪静力试验,研究了用UHPC加固低强度历史砖墙后对其破坏模式、受剪承载能力和变形的影响。结果表明:采用厚40 mm的UHPC加固后的墙体抗剪承载力是加固前的2倍多,固化效果明显。In order to study the application effect of UHPC on the reinforcement of historic masonry walls, two pieces of imitated historic masonry walls with mortar strength less than 1 MPa were designed and made, one of which was not reinforced, and after its damage test, it was then reinforced with UHPC, while another one was directly reinforced with UHPC before the test. Through pseudo-static test, the effects of their failure pattern, shear capacity and deformation on the UHPC-reinforced low-strength historic masonry walls were studied. The results show that the shear strength of the wall reinforced with 40mm thick UHPC later is 2 times more than that without UHPC reinforcement and it has an obvious solidification effect.

关 键 词：超高性能混凝土 历史建筑加固 砌体墙 伪静力 抗剪承载力 

分 类 号：TU997[建筑科学—市政工程]