Steel-concrete combined structure type hidden cover beam structure system and construction method thereof

Abstract

The invention discloses a steel-concrete combined structure type hidden cover beam structure system and a construction method thereof. The hidden cover beam structure system comprises a small prefabricated box beam and a cast-in-place hidden cover beam, and the splicing position between the small prefabricated box beam and the cast-in-place hidden cover beam is connected through a steel-concrete combined structure. The steel-concrete combined structure comprises a cast-in-place concrete connecting structure and a steel connecting structure. The steel connecting structure comprises a box beam overhanging pre-embedded steel plate and a cover beam connecting steel plate; one end of the box beam overhanging pre-embedded steel plate is pre-embedded in the small prefabricated box beam, and the other end of the box beam overhanging pre-embedded steel plate extends out of an anchor sealing plate arranged in the small prefabricated box beam; one end of the cover beam connecting steel plate is connected with the steel framework main body structure of the cast-in-place hidden cover beam, and the other end of the cover beam connecting steel plate can be welded and fixed with the extending end of the box beam pre-embedded plate; and at least part of the steel connecting structure or the whole steel connecting structure is embedded in the cast-in-place concrete connecting structure. The problems of bearing capacity, deformation and durability between the small prefabricated box beam and the cast-in-place hidden cover beam are effectively solved.

Description

technical field [0001] The invention discloses a steel-concrete composite structure concealed cover beam structure system and a construction method thereof, belonging to the field of civil engineering design. Background technique [0002] Driven by national strategic guidance and social and industrial development needs, bridge construction technology is developing in the direction of assembly, industrialization, and standardization. In the construction of elevated urban expressways, prefabricated structures are gradually replacing cast-in-place structures. On the one hand, under the same span, the concrete consumption of the prefabricated small box girder is only 50% of that of the cast-in-place box girder; in soft soil areas, the construction cost of the prefabricated small box girder scheme is less than 75% of that of the cast-in-place box girder (substructure The amount of work is reduced, and the cost of on-site foundation treatment is cancelled) (the estimated index pe...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a steel-concrete composite structure concealed cover beam structure system and its construction method, so as to increase the overall height of the viaduct, satisfy the partial clearance of the bridge, and effectively solve the problem of prefabricated small box girders and existing bridges. Problems of Bearing Capacity, Deformation and Durability Between Pouring Concealed Cover Beams

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