Prefabricated bridge deck slab, cable-stayed bridge and construction method thereof

Abstract

The invention relates to a prefabricated bridge deck slab, a cable-stayed bridge and a construction method of the prefabricated bridge deck slab, and belongs to the technical field of bridge structures.The prefabricated bridge deck slab comprises a deck slab body, a net-shaped structure composed of first reinforcing steel bars and second reinforcing steel bars is arranged in the deck slab body, and a plurality of open grooves are formed in the two ends, in the extending direction of the first reinforcing steel bars, of the deck slab at intervals; the two ends of the first reinforcing steel bar extend to the exterior of the panel, and the two ends of the first reinforcing steel bar are both bent by theta degrees anticlockwise or clockwise; reinforcing steel bar grooves used for containing reinforcing steel bars are formed in the two ends, in the extending direction of the second reinforcing steel bars, of the face plate at intervals, and the reinforcing steel bar grooves are formed between every two adjacent second reinforcing steel bars. According to the panel, the problem of steel bar interference when two panels are spliced can be avoided, and only one panel mold is needed for machining.

Description

technical field [0001] The invention belongs to the technical field of bridge structures, and in particular relates to a prefabricated bridge deck, a cable-stayed bridge and a construction method thereof. Background technique [0002] For long-span cable-stayed bridges or suspension bridges, the method of cantilever hoisting or cantilever pouring is generally used for construction. The main girder generally adopts a steel box girder or π-shaped concrete girder with a full section. Large; the overall cost of the steel box girder is high, and the hoisting of the entire section of the cantilever has high requirements on the transfer equipment and hoisting equipment, and the construction site often does not have the conditions for large-section transportation. In order to solve the aforementioned problems of heavy concrete girders and high cost of steel box girders, steel-concrete composite girder bridge structures emerged as the times require. Steel-concrete composite beams us...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a prefabricated bridge deck, a cable-stayed bridge and its construction method. The deck can avoid the problem of reinforcement interference when two decks are spliced ​​together, and only one deck mold is needed can be processed

Images