A bridge deck wet joint joint and its construction method and application

Abstract

The invention belongs to the technical field of bridge engineering, and particularly relates to a bridge deck wet joint connector and a construction method and application thereof. The structure of the joint is as follows: the joint is cylindrical; bent steel bars, long straight steel bars and short straight steel bars are arranged on the side wall of the prefabricated bridge deck slab, wherein one end of each of the long straight reinforcing steel bars and the short straight reinforcing steel bars is fixed in the prefabricated bridge deck slab; the long straight steel bars and the short straight steel bars are distributed in a staggered manner along the length direction of the wet joint; the bent reinforcing steel bar comprises a lower-layer straight reinforcing steel bar section, a bentarc reinforcing steel bar section and an upper-layer straight reinforcing steel bar section; one end of the lower-layer straight steel bar section is fixed in the prefabricated bridge deck slab, the two ends of the bent arc-shaped steel bar section are connected with the lower-layer straight steel bar section and the upper-layer straight steel bar section respectively, the lower-layer straight steel bar section is longer than the upper-layer straight steel bar section, and the upper-layer straight steel bar section, the long straight steel bars and the short straight steel bars are fixed together to form a whole. According to the wet joint connector, the construction difficulty can be remarkably reduced, the construction progress can be accelerated, and the relative position of the bridgedeck slab can be conveniently adjusted.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a bridge deck wet joint joint, a construction method and application thereof. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and it is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] Wet joints refer to prefabricated prestressed concrete beams divided into pieces, cantilever assembled into large-span continuous beams, and cast-in-place concrete is used between beams to connect beams into a whole. In the structural form of prefabricated composite bridges, prefabricated The panel wet joint is the key to affect the field assembly speed and the mechanical performance of the structure. At present,...

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Problems solved by technology

However, the inventor has found in long-term engineering practice that the existing wet joints in the form of such straight steel bars have the problem of difficult welding and binding of the lower steel bars during construction; both ends of the U-shaped steel bars are all anchored to the In the panel, the rigidity is high. If the relative position of the prefabricated bridge deck needs to be adjusted, the U-shaped steel bars are difficult to bend. This requires that the positioning of the prefabricated bridge deck needs to be very precise, but it is difficult to guarantee this every time in actual engineering. accuracy, which has a great impact on the progress of the project

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