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施工过程中当钢筋长度不够设计要求时可以采取绑扎搭接或焊接等方式把钢筋接长,但应符合搭接长度区段内受力钢筋接头面积的允许百务率的规定。为错开钢筋接头位置,在配料时确要化不少时间,为此,对常用的绑扎、闪光对焊和搭接焊等三种接头型式按不同的百分率进行静载和疲劳试验,研究其允许百分率的规定。一、静载试验:试验梁共57根,其中对焊接头
During the construction process, when the length of the reinforcing bar is not enough, the length of the reinforcing bar may be taken by lacing, lap or welding, but the length of the bar should be in accordance with the allowable percentage of the area of the reinforcing bar joint in the lap length section. In order to stagger the location of the rebar joints, it is necessary to make a lot of time during the ingredients. For this purpose, three types of joint, such as the commonly used lashing, flash butt welding and lap welding, are subjected to static loading and fatigue test according to different percentages. Percentage of the rules. First, the static load test: a total of 57 test beams, of which welded joints