论文部分内容阅读
在现场架设钢筋时,接长钢筋的方法目前主要有绑扎搭接法和绑条或搭接电弧焊接法两种。电弧焊接法效率低,在工程规模较大时,难以保证工期的要求;且现场焊接时如无严格的措施,也不易保证质量。因此,施工中大量使用的还是绑扎搭接接头。一、绑扎搭接接头存在的问题绑扎搭接接头的施工虽简单,但也存在不少缺点。首先,这种接头增加了钢筋用量。以常用的Ⅱ级钢筋为例,我国规范规定的搭接长度一般是25～35d (d-直径)。对于长度大的重型结构,采用绑扎接头,一根15米左右
When erecting steel bars at the site, there are mainly two types of methods for receiving long steel bars: a tying and lapping method, a tie bar, or a lap welding arc welding method. The arc welding method is inefficient, and when the project scale is large, it is difficult to guarantee the requirements for the construction period; and if there is no strict measure on the spot welding, it is not easy to guarantee the quality. Therefore, lashing joints are also used heavily in construction. First, the problem of lashing lap joints The construction of lashing joints is simple, but there are also many shortcomings. First, this joint increases the amount of rebar. Taking the commonly used secondary steel grade II as an example, the lap length specified in our country’s specifications is generally 25 to 35 days (d-diameter). For heavy-duty structures with large lengths, use a lashing joint, a 15 meters or so