In order to investigate the strengthening effect of the combination of diagonal carbon fiber fabric strips or diagonal polymer mortar strips with external angle steel on post-earthquake masonry structures,three structural column restrained brick masonry walls were seismically strengthened after simulated seismic action and tested under quasi-static load.The three masonry walls were all strengthened by angle steel,and the wall surface was strengthened in different ways.The results show that the load-bearing capacity and deformation capacity of earthquake-damaged wall can be well recovered by using CFRP and polymer mortar strip.The CFRP strip can limit the crack development and improve the ductility of the walls;Using diagonal polymer mortar strips on the wall surface have lower ductility and load bearing capacity.In engineering practice,it is recommended that composite strengthen forms of both CFRP and polymer mortar materials should be considered.
关键词
约束砖砌体墙/震损后加固/碳纤维/抗震性能
Key words
restrained brick masonry wall/strengthen after seismic damage/carbon fiber material/seismic performance
维普
万方数据