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钢筋混凝土框架滑模施工中,由于混凝土凝固后产生较大的粘结力,梁柱接头处的封头钢模板拆不下来,使用撬棍也很难奏效。为此根据千斤顶原理试制了一种专拆模板用的螺杆装置,使用效果较好。这种装置的制作材料如下:3根14mm直径的圆钢筋;2只外径40mm、内径28mm的大螺母;直径28mm长螺丝一枚,直径25圆钢一节,在尾部均焊4×40×100mm的方铁;开口销一只;内径26mm垫
In the slipform construction of reinforced concrete frames, because of the large cohesive forces generated after the concrete has solidified, the steel templates at the end of the beam-column joint cannot be removed, and it is difficult to use a crowbar. For this reason, according to the principle of jacks, a screw device specially designed for dismantling templates has been trial-produced, and the use effect is better. The material of this device is as follows: three 14mm diameter round bars; two large nuts with outer diameter of 40mm and inner diameter of 28mm; one diameter of 28mm with one screw, one section of round steel with 25 diameters, and all welded at the tail 4×40× 100mm square iron; opening pin; internal diameter 26mm pad