改进锚固的钢丝绳-聚合物砂浆交叉条带加固砌体墙拟静力试验研究  

Experimental study on static behaviors of masonry walls reinforced by wire rope-polymer mortar cross strips with improved anchorage measures

作　　者：蒋济同[1] 傅与天 秦增超 高之皓 周献祥 Jiang Ji-tong;Fu Yu-tian;Qin Zeng-chao;Gao Zhi-hao;Zhou Xian-xiang(School of College Engineering,Ocean University of China,Qingdao 266404,China;Institute of Defense Engineering,Academy of Military Science,Beijing 100850,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266404 [2]中国人民解放军军事科学院国防工程研究院,北京100850

出　　处：《工程抗震与加固改造》2024年第5期53-61,共9页Earthquake Resistant Engineering and Retrofitting

摘　　要：本文基于新的钢丝绳锚固方式和墙体构造措施,进行了5片砌体墙的抗震拟静力试验,其中4片采用钢丝绳-聚合物砂浆交叉条带法加固,1片未加固墙作为对照组。综合前期已有试验数据,推导钢丝绳-聚合物砂浆交叉条带法加固砌体墙的抗剪承载力公式。试验表明:改进锚固方式后的交叉条带法在构造上更为可靠,能有效提高砌体墙抗剪承载力,组合墙体承载力较未加固墙提高65%以上,较旧锚固法承载力平均可提高30%;交叉条带对墙体裂缝的出现和发展有一定限制作用,使得墙体的延性有所提高;受力时条带拉压杆体系与原有墙体之间的协同效应能有效提高承载力。最后根据8片墙拟合出的加固墙体抗剪承载力计算公式与试验数据吻合较好,可在相关研究分析中参考使用。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 

分 类 号：TU364[建筑科学—结构工程]