箱形梁具有自重轻用料省刚度好,外形轻巧美观等优点,在钢筋混凝土梁桥及预应力混凝土梁桥中得到广泛应用。但是由于箱形梁的内模常用木模制作,混凝土采取分次中断浇筑工艺,从而耗费木材多,工艺繁而流程长。针对以上存在问题,有关设计、施工、建设单位 Box girder has the advantages of light weight and light weight, good appearance and light appearance, etc., which are widely used in reinforced concrete girder bridge and prestressed concrete girder bridge. However, since the internal mold of the box girder is usually made of wood mold, the concrete is subjected to the steps of interrupting the pouring process at a time, thereby consuming more wood and having more complicated processes and longer processes. For the above problems, the design, construction, construction units