在建桥施工中,一般采用的拖拉架梁法主要要在岸上拼梁,然后顺桥梁中线从一侧桥台把梁部进行拖拉,有时也采用多孔连结拖拉法。拖拉时上下滑道间设滚轴,用绞车通过滑车组拖拉就位。使用此法,机具简单,无需重型装吊机械,架梁稳妥,施工迅速。但此法仅适于 In the bridge construction, the commonly used method of drag beam is to fight the beam on the shore, and then along the bridge midline from one side of the bridge to drag the beam, sometimes using the porous link drag method. When dragging the roller between the roller set up, with the winch through the trolley group drag in place. Use this method, the machine is simple, without heavy equipment hoisting machinery, Liang Liang safe, rapid construction. But this method is only suitable