Bridge cantilevered sidewalk slab formwork system and construction method

Abstract

The invention discloses a formwork system of a bridge cantilever sidewalk slab. The formwork system comprises an arched combination internal mold and a cantilever combination mold, wherein a cantilever combination mold tensioning device is arranged externally in the longitudinal direction of the cantilever combination mold, a cantilever combination mold suspending device is arranged on the upper side of the cantilever combination mold, a walking combination is arranged between one end of a cross beam and one transverse end of a T-shaped beam combination, suspension rods are arranged in the transverse direction of the T-shaped beam combination, every three suspension rods is set as one row, and multiple rows of suspension rods are arranged in a matrix manner in the longitudinal direction of the T-shaped beam combination. A construction method comprises steps as follows: A, mold installation; B, mold dismounting; C, cross beam walking. The device is compact in structure, the method is simple and easy, two ends of the cross beam are balanced on the basis of the lever principle, safety in construction of concrete pouring of the bridge cantilever sidewalk slab is guaranteed, and the reliability of connection between the bridge cantilever sidewalk slab and the T-shaped beam combination is improved. Formwork joints cannot be staggered, so that the straight degree of the bridge cantilever sidewalk slab in the length direction is increased, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a bridge sidewalk slab formwork system, in particular to a bridge sidewalk slab formwork system in which the sidewalk slab protrudes from the edge of a T-shaped beam assembly. It belongs to the technical field of bridge construction. Background technique [0002] The cast-in-place sidewalk slabs of conventional bridges are mainly constructed by the bracket method and the suspension method. For the cast-in-place sidewalk slab technology of small concrete structures, the construction consumes more manpower and time in the process of formwork installation, removal, and reassembly. And the formwork joints are prone to misalignment, causing the sidewalk slabs to not be straight in the length direction. Contents of the invention [0003] The purpose of the present invention is to provide a formwork system for bridge cantilevered sidewalk slabs, which can speed up the construction progress and improve the continuous pouring quality...

AI Technical Summary

Problems solved by technology

[0002] The cast-in-place sidewalk slabs of conventional bridges are mainly constructed by the bracket method and the suspension method. For the cast-in-place sidewalk slab technology of small concrete structures, the construction consumes more manpower and time in the process of formwork installation, removal, and reassembly. And the formwork seams are prone to misalignment, resulting in sidewalk slabs that are not straight in the length direction

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