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对4片不同形式拉结筋的配筋砌块砌体夹芯墙进行平面内低周反复水平加载试验和外叶墙平面外静力加载试验,研究配筋砌体复合节能墙体的外叶墙与内叶墙协同工作性能及外叶墙平面外受力性能。试验结果表明:配筋砌块砌体夹芯墙的内、外叶墙之间具有良好的协同工作性能;在设计的四种形式的拉结筋中,“Z”字形拉结筋的作用明显较弱,可在多层建筑中使用,但在高层建筑中建议不采用此种形式的拉结筋;另外三种形式的拉结筋在高层建筑中均可使用,但考虑到施工方便建议采用方框型拉结筋;拉结筋对外叶墙的平面外承载力起到了相当大的作用,在7、8度罕遇地震下外叶墙也能满足承载力要求及南方地区20层高建筑的抗风承载力要求。
Four kinds of reinforced concrete masonry sandwich walls with different types of reinforcement were tested in low-level repeated horizontal plane and in-plane static lateral plane. The effects of the outer side of the reinforced masonry composite energy-saving wall Cooperating performance of wall and inner leaf wall and out of plane plane force performance of outer wall. The test results show that the inner wall and the outer wall of the reinforced brick masonry sandwich wall have a good synergistic working performance. Among the four kinds of designed draw bars, the “Z” The role is obviously weaker, can be used in multi-storey buildings, but in high-rise buildings is not recommended to use this form of tie-in; the other three forms of tie-bars can be used in high-rise buildings, but taking into account the construction convenience It is suggested that the box-type pull-out tendons should be adopted. The pull-out bars play a considerable role in the out-of-plane bearing capacity of the outer leaf wall. The outer wall can meet the bearing capacity requirements in the rare earthquakes of 7 and 8 degrees, Wind-resistant capacity requirements of high buildings.