Prefabricated assembled bridge deck plate dry joint connection structure and implementation method

Abstract

The invention discloses a prefabricated assembled bridge deck plate dry joint connection structure and an implementation method and belongs to the field of bridge engineering. The prefabricated assembled bridge deck plate dry joint connection structure comprises prefabricated assembled type bridge deck plates, a top reserved pre-stressing hole channel, a top pre-stressing tendon, a top anchorage device, a top spacer, a bottom reserved pre-stressing hole channel, a bottom pre-stressing tendon, a bottom anchorage device, a bottom spacer and a water stop. The top pre-stressing tendon and the bottom pre-stressing tendon are stretched by mounting the spacers and the anchorage devices, so that top parts and bottom parts of the adjacent prefabricated bridge deck plates are connected together. Inaddition, the bottom reserved pre-stressing hole channel, the bottom pre-stressing tendon, the bottom anchorage device and the bottom spacer can be replaced with a bottom embedded part, a bottom steelplate and nuts; the bottom steel plate is fixed by mounting the nuts so as to reduce the workload for stretching the pre-stressing tendons. According to the prefabricated assembled bridge deck platedry joint connection structure and the implementation method disclosed by the invention, the design is simple, the cast-in-place concrete is not needed, the mounting is convenient and rapid, the construction of the full prefabricated bridge is implemented, and the structure has the characteristics of being repairable, and easy to replace and update.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a dry joint connection structure and implementation method of a prefabricated and assembled bridge deck. Background technique [0002] The current status of bridge construction in my country is mainly manifested in the situation that on-site pouring is the main part, and some prefabrication is auxiliary. The traditional cast-in-place bridge construction technology requires a large number of formwork to be built on site, binding steel bars, and pouring and curing concrete during the construction process. Big trouble. Secondly, pouring on site has higher requirements on construction conditions, construction climate and labor costs. my country is in the period of large-scale construction of transportation infrastructure. Prefabricated industrialized bridge construction technology has attracted the attention of many owners in recent years due to its high component precis...

AI Technical Summary

Problems solved by technology

[0004] For the research on the prefabricated assembly technology of bridge decks, most scholars propose to use the connection structure of wet joints to improve the integrity of the bridge deck joints. Especially for cross-sea bridges, harsh weather conditions at sea and limited construction space have greatly limited the use of wet joint connection structures

Secondly, the proposed joint construction form cannot meet the requirements of resisting positive (negative) bending moment, shearing force and tensile force at the same time

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