English：

At present, in the beam-arch composite bridge structure using the “first beam and then arch”method, due to the need for the anchoring of the suspender, concrete beams are mostly set up on theflange of the beam body, but the beam structure and the cantilever casting section cannot besynchronized. Corresponding, resulting in problems such as the concrete of the beam segment cannot bepoured synchronously, and the hanging basket system cannot be moved forward due to obstruction. Basedon a continuous steel arch bridge project, the local push-pull improvement and optimization of thehanging basket side formwork structure is carried out. The hanging basket side formwork structure locatedin the beam area is adjusted to three formwork structures with push-pull combination, which is supportedby additional support longitudinal beams. The steel formwork is added to the truss structure as the sideformwork and bottom formwork of the beam, and the pulley is used to realize the lateral movement of thestructure. This technology realizes the switching of the formwork in the beam area, the synchronouspouring of the suspender anchoring beam and the cantilever casting stage, and the barrier-freelongitudinal movement of the hanging basket system, which solves the problem of synchronous pouring ofthe beam segment, shortens the segment cycle and reduces the frequency of hanging basket installationand disassembly.