加固在役KP_1砖墙的抗震性能试验研究

Investigation on Seismic Behavior of KP_1 Masonry Wall Strengthened

完成了4片KP1承重砖墙试验。其中,首先经低周反复加载将墙片加到出现剪切破坏,用双面钢筋网水泥砂浆面层加固墙片后再进行其在低周交变加载下的受剪试验,分析了加固后墙体的裂缝出现与开展过程、破坏机理、强度及延性,并给出了加固后墙体抗剪能力的建议计算公式,计算结果与试验结果符合良好,可供工程设计及加固时参考。

An experiment of four KP1 masonry walls was carried out. At first, the wall was under low cycle reversal load till shear failure and then the cracked wall was strengthened with steel mesh cement mortar and tested under lower cycle reversal load. The appearance and development of cracks, failure mechanism, strength and ductility of the strengthened masonry wall was analyzed and the design method of the brick wall strengthened with steel mesh cement mortar is proposed.