Wet joint construction for the connection between prefabricated bridge pier columns and cover beams

Abstract

The invention discloses a wet joint structure for prefabrication and splicing of a joint part between a bridge pier column and a cover beam. The wet joint structure comprises a steel plate, cushion blocks, through holes and a cast-in-place concrete layer, wherein the steel plate is embedded in the top face of the bridge pier column, the cushion blocks are arranged between the bridge pier column and the cover beam in a cushioned mode, and the through holes are formed in the cover beam. The cushion blocks are fixedly arranged on the steel plate. The joint part between the bridge pier column and the cover beam is filled with the cast-in-place concrete layer. One port of each through hole is communicated with the cast-in-place concrete layer. The steel plate and the cushion blocks are wrapped inside the cast-in-place concrete layer. The wet joint structure is quick and convenient to construct, low in requirement for construction accuracy, low in construction difficulty and capable of reserving a large adjustment scope for site construction and meeting the requirement for structural stress; an adjustable scope is large, the bridge pier column and the cover beam can be integrated well in a prefabricating and splicing mode, and the rigidity, strength and stability required in the process of erecting the cover beam can be achieved.

Description

Technical field [0001] The invention relates to the technical field of bridge connection structure design, in particular to a wet joint structure used for the connection part of a prefabricated bridge pier column and a cap beam. Background technique [0002] At present, for bridge piers that are assembled by prefabrication, the joint structure of the prefabricated column and the prefabricated cap beam usually adopts the dry joint type with prestressed steel bars through, the epoxy resin bonding type with prestressed steel bars or ordinary steel bars through and the joint structure of ordinary steel bars through There are three types of high-strength mortar cushion. [0003] The above-mentioned three connection structures have higher requirements for construction accuracy. Because the interface between the prefabricated column and the prefabricated cap beam is directly attached or set with a cushion layer of 1 to 2 cm, the room for adjustment is relatively small. When the construct...

AI Technical Summary

Problems solved by technology

When the construction accuracy is limited or the structural force requires a large section of cast-in-place adjustment section between the prefabricated column and the prefabricated cover beam, the above three connection structures cannot directly realize the connection between the prefabricated components, and the existing ones need to be further improved. Type of connection structure

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