Construction method of embedded connection structure between pier and foundation

Abstract

The invention discloses a construction method of an embedded connection structure between a bridge pier and a foundation, wherein the connection structure includes a corbel and an enlarged head arranged at the bottom of the bridge pier, and a corbel and an enlarged head arranged in the foundation are adapted to the enlarged head. The mouth of the cup, the enlarged head is inserted into the mouth of the cup, and the corbel is in contact with the top surface of the foundation, and concrete is poured between the enlarged head and the mouth of the cup; the construction method includes prefabricating the first The assembly part and the second assembly part; stake out the first assembly part at the design position; hoist the bridge pier, push the enlarged head of the bridge pier into the cup of the foundation from the side; align the limit tenon of the second assembly part with the first assembly The limit hole of the part makes the second assembly part and the first assembly part connected and fixed; the concrete is poured, and the pier and the foundation are poured into a whole, thereby completing the prefabricated assembly.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a construction method of an embedded connection structure between a bridge pier and a foundation. Background technique [0002] The design of the connection structure between the pier and the foundation has an important influence on the safety, durability and construction difficulty of the fully prefabricated bridge structure. The connection structure between the existing prefabricated pier and the foundation mainly includes the plug-in column foot consolidation method and the foundation bolt connection method. [0003] Such as figure 1 As shown, the plug-in column foot consolidation method is to pre-embed the steel plug-in member 3 in the pier 1 and the foundation 2, and reproduce the poured concrete wet joint. Usually, the cross-sectional area of ​​the steel plug-in member 3 decreases successively from top to bottom, that is, the overall form is in the form of a re...

AI Technical Summary

Problems solved by technology

Usually, the cross-sectional area of ​​the steel plug-in member 3 decreases successively from top to bottom, that is, the overall form is in the form of a reduced head. Although this connection method facilitates the direct insertion of the pier 1 into the foundation 2, it still has stability. and the problem of poor pull-out resistance

However, the anchor bolt connection method has the problems that the structural integrity is not as good as that of the cast-in-place concrete method, the requirements for the embedded precision of the anchor bolts are high, and the fatigue resistance and durability are relatively poor.

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