Bridge deck wet joint structure adopting T-head steel bars and construction method of bridge deck wet joint structure

Abstract

The invention provides a bridge deck wet joint structure adopting T-head steel bars and a construction method of the bridge deck wet joint structure. The bridge deck wet joint structure comprises a plurality of precast concrete bridge decks erected on girders; a plurality of T-head steel bars are pre-buried in the precast concrete bridge decks at the sides close to wet joints; the extending partsof the T-head steel bars are T-head anchoring ends; the T-head anchoring ends between two adjacent precast concrete bridge decks are arranged in a staggered mode; projections of the corresponding T-head anchoring ends have overlapped length; and wet joint concrete is cast in the wet joints in situ, so that two adjacent precast concrete bridge decks can be connected into a whole. The construction method of the bridge deck wet joint structure comprises the steps of pre-burying the T-head steel bars, casting concrete, performing hoisting in place, casting wet joint concrete and the like. The bridge deck wet joint structure simplifies the construction steps, obviously reduces the great welding workload caused by the traditional design, reduces the construction cost, reduces the influence on the existing traffic, improves the construction efficiency, and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a bridge deck wet joint structure. Background technique [0002] In bridge construction, prefabricated steel-concrete composite beams are favored by bridge builders because they can give full play to the mechanical properties of steel and concrete, and are widely used in practical projects; steel-concrete composite bridges are made of steel The beam is combined with the concrete bridge deck. The concrete bridge deck can be prefabricated in blocks in the factory. After hoisting, it is combined with the steel beam through the shear connector at the wet joint position to form a steel-concrete composite beam as a whole. Prefabricated concrete small box girders and T-beams have been widely used in the construction of small and medium-span bridges in my country for a long time. Due to the mature design method and construction technology, the prefabricated concrete girders hav...

AI Technical Summary

Problems solved by technology

When the number of prefabricated concrete bridge decks or prefabricated concrete girders is large, there are the following problems: (1) the welding workload of wet joint reinforcement is huge, which increases the cost of materials, labor and time; (2) the welding of wet joint reinforcement The welding construction time is long, which has a great impact on the current traffic under the bridge; (3) The welding quality of the reserved steel bars is poor, and when the position of the reserved steel bars on the bridge deck is deviated, the position of the steel bars needs to be corrected before welding, and the construction process is cumbersome

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