Fully prefabricated reinforced concrete bridge assembly structure and connecting method for same

Abstract

The invention discloses a fully prefabricated reinforced concrete bridge assembly structure and a connecting method for the same. The fully prefabricated reinforced concrete bridge assembly structure is characterized by comprising prefabricated piles, prefabricated floor collar beams, prefabricated pier studs, prefabricated capping beams, prefabricated longitudinal beams, prefabricated composite bottom plates and prefabricated anti-collision barriers. The connecting method includes connecting the tops of the prefabricated piles with the bottoms of the prefabricated floor collar beams; upwardly connecting the prefabricated floor collar beams with the prefabricated pier studs; upwardly connecting the prefabricated pier studs with the prefabricated capping beams; erecting the prefabricated longitudinal beams on the prefabricated capping beams via bridge supports or fixing ends; supporting the prefabricated composite bottom plates on the prefabricated longitudinal beams, tying reinforcing steel bars of a bridge deck on the prefabricated composite bottom plates and integrally casting concrete on a site to form the bridge deck; mounting the prefabricated anti-collision barriers on the bridge deck. The fully prefabricated reinforced concrete bridge assembly structure and the connecting method have the advantages that components, except for the bridge deck, of the fully prefabricated reinforced concrete bridge assembly structure are of prefabricated structures, so that the bridge prefabricated rate can be greatly increased; common construction labor consumption can be reduced to the greatest extent, and the labor productivity can be improved; the construction period of the fully prefabricated structure can be greatly shortened, the bridge building cost can be reduced, and the bridge construction quality can be improved.

Description

technical field [0001] The invention relates to the field of prefabricated bridge structures, in particular to a prefabricated pile, a prefabricated bottom tie beam, a prefabricated pier column, a prefabricated cover beam, a prefabricated longitudinal beam, a prefabricated laminated floor, a prefabricated anti-collision barrier, and a bridge deck (cast-in-place) The assembly system and connection structure composed of such components, the reinforced concrete bridge and its assembly connection method constructed by this assembly system and connection structure. Background technique [0002] The existing technology of prefabricated bridge structures is limited to widely used prefabricated simply supported beams (including hollow slab girders, T-shaped beams, etc.) The fully prefabricated reinforced concrete bridge structure composed of prefabricated components such as beams, prefabricated pier columns, prefabricated cap beams, prefabricated longitudinal girders, bridge decks (...

AI Technical Summary

Problems solved by technology

Most of the existing large-scale bridge pile foundation construction technical solutions are cast-in-situ piles. Because the concrete is poured underwater, there are many quality defects in the pile body, and the steel bars are easy to corrode, which leads to a reduction in the life of the pile foundation. Prefabricated piles can ensure the thickness of the protective layer of steel bars and the quality of concrete pouring , can well solve the problems existing in cast-in-situ piles

Existing construction technologies for tie girders, bridge piers, and cover girders all adopt formwork cast-in-place schemes. The construction period is long, and the large amount of formwork used leads to increased costs, and the thickness of the protective layer of steel bars is difficult to control.

Existing bridge girders (including hollow slab girders and T-beams) have all adopted prefabricated construction methods, but they all have certain limitations. Prefabricated hollow slabs are only suitable for bridges with small spans, and T-beams have wet joint construction often lead to quality defects

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