喷射聚合物砂浆加固砖墙的抗震性能试验研究  

Experimental Study on the Seimic Bebavior of Masonry Wall Strengthened with Polymer Mortar

作　　者：赵均[1] 刘扬[1] 郑权 刘玉璠 朱玉玉[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124

出　　处：《土木工程与管理学报》2011年第3期103-106,共4页Journal of Civil Engineering and Management

摘　　要：以VAE型聚合物可再分散胶粉为添加剂的聚合物砂浆作为面层加固材料,采用砂浆喷射工艺,对砖砌体墙进行抗震加固。通过2个大尺寸试件的拟静力试验,研究该种新型材料提高砖墙抗震性能的效果。试验结果表明,采用该种喷射聚合物砂浆对墙体进行单面抗震加固,在水平循环加载条件下,可以明显提高墙体的承载力、变形能力和耗能能力,改善砖墙的脆性性质,是一种效果良好且便于施工的抗震加固方式。A high performance mortar with the additive of VAE-type redispersible polymer powder was applied in strengthening masonry walls for th e purpose of seismic retrofit.Two large-sized specimens were tested quasi-sta tically to investigate the effects of such a polymer mortar on improving the sei smic behavior of the wall.The test results show that,under horizontally cyclic loading,the load-carrying,deformation and energy-dissipating capacities of the wall retrofitted on its surface of a single side with the polymer mortar are increased significantly,and its failure mode is improved.It has proved that it is effective and convenient for seismic retrofit of masonry structures.

关 键 词：聚合物砂浆 砌体结构 抗震加固 结构试验 

分 类 号：TU365[建筑科学—结构工程] TU578.12