Construction process of wet joint connecting structure of prefabricated bridge deck slab

Abstract

The invention discloses a construction process of a wet joint connecting structure of a prefabricated bridge deck slab. The construction process is characterized in that firstly, a welding nail, a steel plate and a steel bar lifting ring are combined into an integral structure, the welding nail is connected with the bridge deck slab, a welding nail side of the steel plate is attached to a bottom surface of a concrete plate, epoxy mortar is laid on the other side of the steel plate, the steel plate is attached to a bottom surface of the other bridge deck slab, and finally, the overall structureis connected with the embedded steel bars exposed out of ends of bridge decks on two sides through steel bars in a welding or binding mode, the two adjacent bridge deck slabs and the prefabricated bridge deck wet joint connecting structure are combined into a whole, and the bottom of a wet joint between the two adjacent bridge deck slabs is completely sealed by the steel plate. Compared with theprior art, the construction process is advantaged in that procedures of mounting and dismounting the formwork during wet joint construction of a traditional prefabricated bridge deck slab on site arereduced, the construction speed is increased, the connection quality of the wet joint is guaranteed, the bearing capacity of the structure at the wet joint is improved, and the safety reserve of the structure is increased.

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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