Prefabricated bridge deck slab wet joint connecting structure, prefabricated bridge and method

Abstract

The invention discloses a prefabricated bridge deck wet joint connecting structure, a prefabricated bridge and a method thereof. The technical proposal is as follows: prefabricating concrete bridge deck, a plurality of conical tooth grooves are formed in one side of the prefabricated concrete bridge deck and there is an annular connecting joint steel bar extending out from the end face of the prefabricated concrete bridge deck; the annular connecting joint steel bars between the two prefabricated concrete bridge decks are overlapped and staggered; transverse penetrating steel bars are arrangedon the inner sides and the outer sides of the annular connecting joint steel bars; concrete is filled between the oppositely-arranged conical tooth grooves to form a wet joint. The conical tooth grooves are formed in the connecting interface of the prefabricated concrete bridge deck slabs, the bridge deck slabs are connected through the annular steel bars. The invention has the advantages of simple structure, reasonable stress, reliable force transmission, capable of meeting various requirements of the concrete bridge deck slabs in the normal use and bearing capacity limit state; The on-sitepouring amount is small, and construction is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a prefabricated bridge deck wet joint connection structure, a prefabricated bridge and a method. Background technique [0002] With the continuous improvement and rapid development of my country's bridge construction level, prefabricated bridge technology has been widely used. Prefabricated bridges achieve rapid construction through factory prefabrication and on-site installation of components, which significantly improves the quality of bridge components and production and construction efficiency, and has attracted extensive attention from the engineering and academic circles. Among them, the prefabricated bridge deck system adopts factory-made steel girders and prefabricated concrete bridge decks, which are erected at the construction site. After the installation is completed, the vertical and horizontal joints of the cast-in-place bridge decks form an overall bridge...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a prefabricated bridge deck wet joint connection structure, prefabricated bridge and method, in which conical tooth grooves are provided at the connection interface of prefabricated concrete bridge decks and connected to the bridge decks through annular steel bar joints. The connection between them is simple, the force is reasonable and the force transmission is reliable, which can meet the various requirements of the concrete bridge deck under the normal use and limit state of the bearing capacity; the site pouring amount is small, the construction is convenient and fast, and it can effectively solve the existing Prominent problems such as concrete cracking, water leakage, and poor fatigue performance during long-term operation of precast concrete bridge deck wet joints

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