Based on the new wire rope anchorage method and wall construction measures,seismic pseudo-static tests were conducted on five masonry walls,four pieces of walls were reinforced by the wire rope-polymer mortar cross-strip method and one piece was control group in this paper.The formula of shear capacity of masonry wall reinforced by wire rope-polymer mortar cross-strip method was deduced based on the available experimental data.The tests show that the cross-strip method is more reliable in construction after improving the anchoring method,which can effectively improve the shear capacity,and the shear capacity of the combined wall is more than 65％higher than that of the unreinforced wall,and the shear capacity can be increased by 30％on average compared with the that of walls by old anchoring method.The crossed strips have a certain limiting effect on the emergence and development of cracks in the wall,which makes the ductility of the wall improved.The synergistic effect between the strip tension bar system and the original wall during stressing can effectively improve the shear capacity.Finally,the calculation formula of shear capacity of reinforced wall fitted according to 8 pieces of walls agrees well with the test data and can be used for reference in the analysis of related researches.
关键词
砌体加固/交叉条带/钢丝绳/抗剪承载力
Key words
reinforcement of masonry wall/cross strip/wire rope/shear capacity
维普
万方数据