According to the extradosed cable-stayed bridge
continuous beam integrated three-purpose
support system structure and the construction method, steel
pipe stand columns are arranged on the widened bearing platform foundations on the front side and the rear side of a
pier body to serve as temporary consolidation supports, foundation treatment is reduced, the requirement for
bearing capacity can be met, and in the temporary consolidation lengthening process, climbing cones and I-shaped steel are pre-buried in the
pier body, so that the construction cost is reduced, and the construction efficiency is improved. The method comprises the following steps: forming a first-layer frame body for
pier cap construction by a climbing cone and a temporary consolidation steel
pipe upright post, lengthening the steel
pipe upright post after pier cap construction is completed, laying I-shaped steel and a disc buckle bracket on the first-layer frame body to construct a second-layer bracket body of a 0 # block, firstly removing the 0 # block frame body after the 0 # block construction is completed, and then removing the frame body of the pier cap through a discharging block. And finally, only the steel pipe stand columns are reserved for temporary consolidation of
hanging basket construction. The problems that according to a traditional method, construction of pier caps and 0 # blocks is difficult to complete through a conventional
support system, and no temporary consolidation space exists are solved. Belongs to the field of extradosed cable-stayed bridge construction.