提高房屋抗震能力的关键,就是结构连接的整体性。由于混凝土是脆性材料,在强烈的地震力作用下很容易开裂,因而钢筋的结构连接,显得格外重要。以往的高层、多层建筑的现浇钢筋混凝土框架竖向大直径钢筋的连接,通常是采用绑扎钢筋或电弧焊的施工方法。绑扎钢筋需要一定的搭接长度,浪费材料; The key to improving the earthquake resistance of buildings is the integrity of structural connections. Because concrete is a brittle material, it is easy to crack under the action of strong seismic forces. Therefore, the structural connection of reinforcing steel is particularly important. The connection of vertical large-diameter steel bars of cast-in-situ reinforced concrete frames of high-rise and multi-story buildings in the past is usually a construction method using banded reinforcement or arc welding. Lagging reinforcement requires a certain lap length, wasting material;