Prefabricated superposed reinforced concrete bridge pier structure

Abstract

A precast assembled superposed reinforced concrete bridge pier structure includes precast reinforced concrete pier pieces, steel frame, cast-in-place core concrete, The precast reinforced concrete bridge pier piece is a pre-cast reinforced concrete thin-wall sheet material of ultra-high performance concrete whose compressive strength is greater than 100MPa, A plurality of precast reinforced concrete pier pieces are arranged along the circumferential outer edge of the pier section to overlap each other, The overlap of two precast reinforced concrete bridge pier pieces is poured into the post-pouring laminated area, and the concrete wraps and pre-embedded connecting bars are connected with two adjacent precast reinforced concrete bridge pier pieces, so that hollow pier hollow columns are integrally formed in the circumferential direction, and cast-in-situ core concrete is filled into the inner cavity of the hollow pier columns and formed into an integral whole with the hollow pier columns. The invention is a composite bridge pier structure, adopts the technology of combining precasting and cast-in-situ, ensures the integrity of the reinforced concrete precast bridge pier, and has theadvantages of high on-site mechanization degree, short construction period and good integrity.

Description

technical field [0001] The invention relates to a bridge pier structure, in particular to a prefabricated and assembled superimposed reinforced concrete bridge pier structure, which belongs to the technical field of civil engineering structures. Background technique [0002] At present, most of the pier construction in my country's bridge construction adopts the construction technology of pouring in situ. This method has the advantages of simple construction and mature construction technology, so it is widely used in the construction of small and medium bridge piers. However, this construction method has a long construction period and many wet operations on site, which has a great impact on the surrounding environment and directly affects the traffic capacity of local roads. In addition, the cast-in-place construction of bridge piers leads to huge consumption of formwork and supports for the project, which greatly increases the construction cost of the project and violates t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a reinforced concrete superimposed bridge pier structure, in order to solve the shortcomings of the current cast-in-place bridge pier structure, such as long construction period and high energy consumption, as well as the shortcomings of the existing prefabricated bridge pier structure connection integrity, using prefabricated reinforced concrete Bridge piers provide formwork skeletons for on-site pouring of bridge piers, reserve post-cast superimposition areas and complete circumferential splicing, and form superimposed structures with cast-in-place core concrete to ensure the integrity of reinforced concrete prefabricated piers, and the degree of on-site mechanization of the structure High, short construction period, good integrity

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