Quickly-installed steel-concrete combined beam bridge and construction method thereof

Abstract

The invention discloses a quickly-installed steel-concrete combined beam bridge and a construction method thereof. The steel-concrete combined beam bridge comprises steel-concrete combined beams, andannular lap-joint steel bars are arranged on the four edges of each concrete bridge deck; and cut-through steel bars penetrate into the annular lap-joint steel bars between every two adjacent concretebridge decks, longitudinal and transverse wet joints are poured with high-performance concrete, and bottom plates of the longitudinal adjacent steel beams are connected through splicing steel platesand high-strength bolts. The construction method mainly comprises the steps that the steel-concrete combined beams are prefabricated and hoisted in places; and the cut-through steel bars penetrate into the annular lap-joint steel bars of the transverse and longitudinal adjacent concrete bridge decks, the transverse and longitudinal wet joints are poured with the high-performance concrete, and thebottom plates of the longitudinal adjacent steel beams are connected through the splicing steel plates and the high-strength bolts. The quickly-installed steel-concrete combined beam bridge and the construction method thereof have the advantages that industrialized production is achieved, and the beam quality is reliable; traditional time-consuming and labor-consuming steel bar welding connectionfor the longitudinal and transverse joints among the concrete bridge decks is abandoned; and construction is convenient and fast, and little influence is generated on existing traffic.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and relates to a fast-installed steel-concrete composite girder bridge and a construction method thereof. Background technique [0002] With the development of cities and the improvement of people's living standards, the number of large-scale urban vehicles has increased rapidly year by year, which makes urban traffic face enormous pressure. On this basis, if it is necessary to continue to speed up the construction of urban express roads and build elevated bridge structures, it is necessary to consider the impact on existing traffic during the construction of bridge structures. The bridge structure with fast construction speed and less impact on ground traffic will become the first choice for bridge construction in the future. [0003] Usually, the bridge elevated structure can choose hollow slab girder, T girder, small box girder, steel-concrete composite girder and concrete large bo...

AI Technical Summary

Problems solved by technology

The prefabricated concrete bridge deck needs to be welded at the upper flange of the steel girder, and the cast-in-place concrete bridge deck needs to be reinforced and cast-in-place on the steel beam, which also cannot achieve rapid construction

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