Reinforcing structure with anchoring end steel bars in connection of precast beam and bridge deck slab

Abstract

The invention discloses a reinforcing structure of reinforcing steel bars with anchoring ends in connection of a precast beam and a bridge deck slab, belongs to the field of bridge structures, and mainly solves the problem that the precast bridge deck slab and the precast beam are separated from each other when being subjected to shearing force. According to the main reinforcing structure, high-strength anchoring end reinforcing steel bars coated with epoxy resin glue penetrate through reserved inserts installed at the two ends of a prefabricated bridge deck slab shear groove, then the high-strength anchoring end reinforcing steel bars are placed on the inserts of the prefabricated beam middle shear groove, and after the position is checked to be qualified, self-compacting ultrahigh-strength concrete is poured; and the high-strength steel bars with the anchoring ends, the inserts in the prefabricated bridge deck slabs and the inserts in the main beams are effectively combined into a whole. According to the prefabricated bridge deck slab and prefabricated beam connecting structure, the prefabricated bridge deck slab and the prefabricated beam are connected into a whole, the overallrigidity of combination is improved, the shear capacity is improved, and the prefabricated bridge deck slab and prefabricated beam connecting structure has the advantages of being high in constructionspeed, safe, reliable, high in economic benefit and the like.

Description

technical field [0001] The invention relates to a reinforcing structure of steel bars with anchoring ends in the connection of prefabricated girders and bridge decks, belonging to the field of bridge structures. Background technique [0002] With the development and progress of technology, the bridge prefabrication method is more and more widely used in the design and construction of various bridge projects. Compared with other methods, the construction technology of prefabricated assembly method is economically cheaper, convenient and fast in terms of construction efficiency, and has become one of the priority design schemes and construction methods in bridge construction. In the current stage of bridge construction projects, prefabricated splicing technology still has many technical weak links. The study found that the premature separation of beams and slabs during the use of the combined components of prefabricated bridge decks and prefabricated beams weakened the beams. ...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a reinforcement structure with anchorage end steel bars in the connection between prefabricated beam and bridge deck. It is not easy to separate under the shear force, which greatly improves the stiffness and shear resistance of the plate-beam composite member, and has the characteristics of safety, reliability and convenient construction.

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