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.
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
关键词
聚合物砂浆
砌体结构
抗震加固
结构试验
polymer mortar
masonry structure
seismic retrofit
structural test
