下承式移动模架利用桥梁端部、墩旁支腿作为支撑系统,在两墩之间原位现浇简支箱梁。工程实际中,经常会出现桥梁中间跨为连续梁结构,这在一定程度上限制了移动模架的使用范围,而如何实现移动模架纵移过三跨连续箱梁的施工技术,是一个很值得研讨的技术问题。 Under the mobile frame by the use of bridge ends, pier next to the legs as a support system, in situ between the two piers cast-in-place simple box girder. In engineering practice, the middle span of the bridge often appears as a continuous beam structure, which limits the scope of use of the movable formwork to a certain extent. However, how to realize the construction technology of moving the formwork longitudinally across the three-span continuous box girder is a very important Worth to discuss the technical issues.