聚合物混凝土修补钢筋混凝土板抗爆性能试验研究  

Experimental investigation into the explosion-resistant performance of reinforced concrete slabs repaired with polymer-modified concrete

作　　者：郭晓辉[1] 张新乐[1] 曹海[1] 冯进技[1] 

机构地区：[1]总参工程兵科研三所,洛阳471023

出　　处：《防护工程》2013年第4期27-30,共4页Protective Engineering

摘　　要：为了研究聚合物混凝土对钢筋混凝土板加固和修补效果，在3种接触爆炸条件下对不同修补形式的钢筋混凝土修补板和普通钢筋混凝土板进行了试验研究，从宏观破坏现象出发，分析对比了各种修补板与普通混凝土板迎爆面和背爆面破坏特征。结果表明：采用迎爆面修补形式、中间方形和中间条形修补形式的修补板抗爆性能优于普通混凝土板的；背爆面深层修补板抗爆能力与普通混凝土板的基本相同；背爆面浅层修补板抗爆能力不及普通混凝土板的。对于工程加固和修补，应优先选择迎爆面修补方法；对于发生局部贯穿破坏的工程部位，可以采用中间方形和条形修补方法，不能采用背爆面浅层修补方法。In order to research the repaired effects of reinforced concrete slabs repaired with polymermodified con crete, experiments on different repaired and common reinforced concrete slabs were carried out under three kinds of contact explosion, respectively. Based on the macroscopic damage phenomena, the damage characteristics on the front and back surfaces of the repaired slabs and common concrete slabs were analyzed. It has been shown that the explosionresistant performance of different slabs repaired with shallow and deep depth of front surface, square shape and strip shape are better than that of the common concrete slabs, while the explosionresistant performance of deep repaired slabs in back surfaces are almost the same as that of common concrete slabs, but the explosionre sistant performance of shallow repaired slabs in back surfaces are worse than that of common concrete slabs. There fore, for repair engineering, the front surface repair method should be taken first;for locally damaged structures, the square and strip repair methods of the back surface can be used, but the shollow repair method of back surface can not be used.

关 键 词：聚合物 修补板 抗爆性能 接触爆炸 

分 类 号：TU375.2[建筑科学—结构工程]