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粗直径钢筋连接是建筑工程中一项量大面广的重要施工技术。粗钢筋的连接方法直接关系到建筑结构的安全性、施工速度和综合经济效益、受到用户、设计和施工部门的广泛重视。 粗钢筋连接分为绑扎搭接、焊接和机械连接三大类。绑扎搭接方法简单,不需特殊技工,但要耗用大量钢材,且接头的传力效果差,《混凝土结构设计规范》(GBJ10—89)指出:直径d>22mm的粗钢筋不宜采用搭接连接;焊接连接一般有搭接电弧焊、坡口焊、电渣压力焊、气压焊以及水平钢筋窄间隙电弧焊等多种,其中电渣压力焊于80年代开始在我国推广应用,目前已成为我国粗直径钢筋焊接连接中的一种主要的方法:机械连接一般有套
Coarse-diameter rebar connection is a large-scale and important construction technology in construction projects. The method of connecting the thick steel bars directly relates to the safety of the building structure, the construction speed, and the overall economic benefits. It is highly valued by users, design and construction departments. Coarse reinforcement connections are divided into three categories: lashing, welding and mechanical connection. The tying and tying method is simple and does not require special technicians, but it needs to consume a large amount of steel and the force transfer effect of the joint is poor. The “Specifications for Design of Concrete Structures” (GBJ 10-89) points out that the thick steel bar with diameter d>22mm should not be used for lap jointing. Connections; welding connections are generally overlap arc welding, groove welding, electroslag pressure welding, pressure welding and horizontal steel narrow gap arc welding and many other, of which electroslag pressure welding in the 80s began to promote in China, has become A major method in the welding connection of coarse-diameter steel bars in China: Mechanical connection is generally provided