Pier bottom swivel construction method and system for double-thin-walled pier

Abstract

The invention provides a pier bottom swivel construction method for a double-thin-walled pier. The method includes the steps of firstly, building foundation piles, a lower bearing platform and an upper bearing platform, wherein a swivel ball hinge is arranged between the lower bearing platform and the upper bearing platform; secondly, pouring and forming the double-thin-walled pier and a girder, wherein during the pouring and forming of the double-thin-walled pier, a temporary support structure is arranged between the two pier walls of the double-thin-walled pier; thirdly, performing swivel construction through the swivel ball hinge; fourthly, after the swivel construction is completed, removing the temporary support structure. The method has the advantages that by arranging the temporarysupport structure between the two pier walls of the double-thin-walled pier, the torsional rigidity of the double-thin-walled pier is increased during the swivel construction; the temporary support structure is removed after the swivel construction is completed, so that the flexibility of the double-thin-walled pier during bridge operation is guaranteed; the method guarantees the safety during theswivel construction and bridge operation at the same time and effectively achieves the torsion resistance of the swivel bridge flexible thin-walled pier and a girder root.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a pier bottom swivel construction method and system for double thin-walled bridge piers. Background technique [0002] With the development of urban traffic in our country, bridges, as the hub of urban traffic, play a pivotal role. Double thin-walled piers are the most commonly used piers for large and medium-span highway bridges in my country at the present stage. It has high flexural stiffness and low thrust stiffness, which can effectively reduce secondary internal forces caused by temperature, concrete creep, and pier displacement. The bridge construction of the existing double-thin-walled piers generally adopts hanging baskets for segmental construction, and it is necessary to set hanging baskets at the bottom of the beam during the construction process. During the segmental construction of the hanging basket, objects may fall into the water, which w...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pier bottom swivel construction method for double thin-walled pier, so that the structure can not only ensure the necessary flexibility during the operation of the pier, but also ensure the necessary rigidity during the construction of the pier swivel, effectively solving the problem of the flexibility of the swivel bridge. Torsional Problems of Thin-walled Piers and Beam Roots

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