Ultra-high performance concrete prefabricated hollow bridge deck slab with longitudinal and transverse ribs and construction method of ultra-high performance concrete prefabricated hollow bridge deck slab

Abstract

The invention relates to an ultra-high performance concrete prefabricated hollow bridge deck slab with longitudinal and transverse ribs and a construction method of the ultra-high performance concreteprefabricated hollow bridge deck slab. The bridge deck slab is characterized in that the ultra-high performance concrete prefabricated hollow bridge deck slab with the longitudinal and transverse ribs comprises a top board, a bottom board and the beam ribs arranged criss-cross between the top board and the bottom board, the middle longitudinal and transverse beam ribs are crossed to form a hollowstructure, common reinforcing steel bar meshes transversely and longitudinally woven from common reinforcing steel bars are arranged in the top board and the bottom board, and prestress reinforcing steel bar meshes woven from prestress reinforcing steel bars and hoops are arranged in the beam ribs. The dead weight of a common concrete bridge deck slab can be effectively reduced, the span of the bridge deck slab is increased, the number of supporting structures or lower structures is reduced, the manufacturing cost is reduced, the quality and durability of the bridge deck slab are improved, the mechanical property and economic benefits are good, and application prospects are quite wide.

Description

Technical field: [0001] The invention relates to the technical field of civil engineering, and relates to an ultra-high-performance concrete prefabricated hollow bridge deck structure with longitudinal and transverse ribs. Background technique: [0002] The bridge deck is an important part of the bridge structure, and its durability directly affects the durability and service life of the bridge structure. With the continuous increase of traffic volume and heavy vehicles, as well as the impact of the environment, ordinary reinforced concrete bridge decks usually have problems such as transverse cracking, partial cracking or corrosion, and steel corrosion soon after operation, which seriously affects the service life of the bridge. Especially in long-span bridges, there are a large number of bridge decks. Due to the heavy weight of the structure itself, the load-bearing efficiency of the overall structure is not high, and the construction is also difficult. At the same time, t...

AI Technical Summary

Problems solved by technology

The reason is that the strength of the ordinary concrete bridge deck is low, and the required cross-section is relatively large, which makes the self-heavy

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