Fully prefabricated reinforced concrete bridge assembly structure and its connection method

Abstract

The invention discloses a fully prefabricated assembled reinforced concrete bridge assembly structure and its connection method, which is characterized by comprising prefabricated piles, prefabricated bottom tie beams, prefabricated pier columns, prefabricated cover beams, prefabricated longitudinal beams, prefabricated laminated floor and prefabricated Hit the fence, the pile top of the prefabricated pile is connected to the bottom of the prefabricated bottom tie beam; the prefabricated bottom tie beam is connected upward to the prefabricated pier column; the prefabricated pier column is upwardly connected to the prefabricated cap beam; The end frame stands on the prefabricated cover beam; the prefabricated laminated floor is supported on the prefabricated longitudinal beam, and the bridge deck steel bar is bound on the prefabricated laminated floor to make the bridge deck through integral casting of concrete; the prefabricated anti-collision barrier is installed on the bridge above the panel. The present invention is a prefabricated structure except for the cast-in-place bridge deck, which will greatly improve the assembly rate of the bridge; can minimize the general construction labor and improve labor productivity; the fully prefabricated structure of the present invention can greatly shorten the construction period and reduce the bridge construction cost. Improve the quality of bridge construction.

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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