Assembly-type composite tube sea-water sea-sand concrete bridge pier and manufacturing method

Abstract

The invention discloses an assembly-type composite tube sea-water sea-sand concrete bridge pier. The structure of the bridge pier is composed of multiple composite tube sea-water sea-sand concrete column segments (100) which can be stacked, and the composite tube sea-water sea-sand concrete column segments (100) are connected into an entirety through back-tension prestressing force. The assembly-type composite tube sea-water sea-sand concrete bridge pier is characterized in that the composite tube sea-water sea-sand concrete bridge pier column segments are formed by composite tubes (1), sea-water sea-sand concrete (2), corrugated pipes (3), prestressing ribs (4) and anti-shear ribs (7), one or more pairs of protruding ribs (6) and grooves (5) are arranged between seams of every two composite tube sea-water sea-sand concrete bridge pier column segments, and the protruding ribs (6) and the grooves (5) are glued through a cementing material; each composite tube sea-water sea-sand concretebridge pier column segment (100) is provided with the corresponding corrugated pipe (3) in the height direction, and one or more prestressing ribs (4) penetrate through the corrugated pipes (3) of each column segment. The assembly-type composite tube sea-water sea-sand concrete bridge pier has the advantages that the bridge pier is good in durability, high in bearing capacity and good in corrosion resistance, the materials are easy to take, and the bridge pier is beneficial to sustainable development; meanwhile, the structure of the assembly-type composite tube sea-water sea-sand concrete bridge pier has the advantages that the structure can be prefabricated and transported in a large scale, is convenient to mount, short in construction period, low in energy consumption and little in environmental pollution, and can be suitable for marine engineering structural construction.

Description

technical field [0001] The invention belongs to the technical field of civil engineering structures, and in particular relates to an assembled composite pipe seawater sea sand concrete bridge pier and a manufacturing method thereof. Background technique [0002] In recent years, with the continuous development of material science and the progress of bridge design technology, the pursuit of short construction period, high efficiency, high quality and low pollution has become a new development trend in bridge construction. In our country, the prefabrication technology of the bridge superstructure is quite mature, but the prefabrication of the substructure is still in the preliminary stage, and the experience in the assembly of bridge piers is insufficient. Compared with the traditional cast-in-place construction method, the prefabricated bridge pier has the advantages of small construction area, less environmental pollution, short construction period and high safety. [0003]...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a prefabricated composite pipe seawater sea sand concrete bridge pier and its manufacturing method. The prefabricated pier structure solves the problems of traditional cast-in-place construction pier with large ground area, long construction period, serious environmental pollution, poor safety and low efficiency. and other defects, the composite seawater sea sand concrete pier structure, using fiber reinforced composite (FRP), fundamentally avoids the corrosion of ordinary steel pipe concrete in humid and high chloride ion concentration environments, and solves the problem of easy buckling of steel pipes and durable structures Poor sex and other technical defects

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