拉结钢筋在自保温砌块砌体水平灰缝中埋置长度

关键字：拉结,钢筋,自保温,砌块,砌体,水平,灰缝

（郑州大学 土木工程学院，河南 郑州  450002）
 

    摘要：对自保温砌块砌体水平灰缝进行了钢筋的中心拉拔试验，比较了有水平弯折段和无水平弯折段拉结钢筋在专用砌筑砂浆中的不同受力状况；通过拉结钢筋在自保温砌块砌体中的中心拉拔试验，得出了粘结应力沿埋置长度的变化规律，提出了拉结钢筋在自保温砌块砌体中的埋置长度设计建议。
    关键词：自保温砌块；拉拔试验；锚固长度；粘结锚固强度
    中图分类号：TU522.3+4        文献标识码：A        文章编号：1001-702X（2017）10-0066-04

An experimental study on steel bar anchorage length in horizontal mortar joint of self-insulation block masonry
GUAN Pinwu，CHEN Meng，ZHANG Haojian
（School of Civil Engineering，Zhengzhou University，Zhengzhou 450002，China）

    Abstract：Through the center pullout tests，different force conditions with horizontal bending bar and without horizontal bending rebar in special masonry mortar additive are compared. Through the pullout tests in self-insulation block，the distribution curves of bond stresses along anchorage length are derived. Based on the experimental results，the critical anchorage length of steel rebar embedded in mortars are proposed.
    Key words：self-insulation masonry，pullout test，anchorage length，bond-anchorage strength