A Construction Technology of Wet Joint Connection Structure of Prefabricated Bridge Deck

Abstract

The invention discloses a construction process of a prefabricated bridge deck wet joint connection structure. Firstly, welding studs, steel plates and reinforcement rings are combined into an integral structure, and then the welding studs are connected with a bridge deck, so that the steel plate has the welding stud side and the steel bar suspension ring. The bottom surface of the concrete slab is attached, epoxy mortar is laid on the other side of the steel plate, the steel plate is attached to the bottom surface of the other bridge deck, and finally the overall structure is exposed through the steel bars and the ends of the bridge deck on both sides by welding or binding. The pre-embedded steel bars are connected to combine the two adjacent bridge decks with the wet joint connection structure of the prefabricated bridge decks into a whole, and the bottom of the wet joint between the two adjacent bridge decks is completely sealed by the steel plate. Compared with the prior art, the present invention reduces the process of formwork installation and removal during the wet joint construction of the traditional prefabricated bridge deck on site, speeds up the construction speed, ensures the connection quality of the wet joint, and improves the quality of the wet joint. The bearing capacity of the structure increases the safety reserve of the structure.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction process of a prefabricated bridge deck wet joint connection structure. Background technique [0002] In steel-concrete composite beams, in order to reduce the impact of concrete shrinkage on the bridge force, the method of prefabricating the concrete bridge deck and storing it for more than 6 months is usually used to allow the concrete bridge deck to shrink freely in the early stage, and then install the bridge deck to the steel beam superior. After the concrete bridge deck is placed on the steel girder, there are joints between two adjacent bridge decks, and concrete needs to be poured on the joints on site to connect the two adjacent concrete decks into one. When pouring concrete, the prior art usually adopts the construction technology of supporting formwork at wet joints, but it is extremely inconvenient and dangerous to support formwork under the...

AI Technical Summary

Problems solved by technology

When pouring concrete, the existing technology usually adopts the construction technology of supporting formwork at wet joints, but it is extremely inconvenient to support formwork under the bridge deck when crossing deep valleys and water environments, and there is a high risk

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