Construction method of pre-stressed pipeline on wet joint section of precast concrete component

Abstract

The invention provides a construction method of a pre-stressed pipeline on a wet joint section of a precast concrete component. The construction method comprises the following steps: mounting and fixing a pre-stressed pipeline embedded section before the precast concrete component is poured with concrete and mounting plugs at the two ends; tightly plugging inner stoppers of plugs into the pre-stressed pipeline embedded section and enabling the outer sides of plug caps to be flush with a precast concrete component formwork; after the concrete is initially set, pulling out the plugs at the end parts of the pre-stressed pipeline embedded section to form joint parts of the pre-stressed pipeline; respectively connecting pre-stressed pipeline connecting sections with the joint parts of the pre-stressed pipeline embedded section at the two ends, sealing the peripheries of the pre-stressed pipeline at the joint parts with a structural adhesive to complete the connection of the pre-stressed pipeline; pouring the wet joint section with concrete to form a whole. The construction method provided by the invention has the beneficial effects that the two ends of the pre-stressed pipeline are built-in without exposure, so that end dies can be prevented from being opened when the precast component is poured; the situations f root fracture and breakage easily appearing in the construction process of a traditional exposed pre-stressed pipeline can be effectively prevented, so that the risk of blocking the pre-stressed pipeline is reduced.

Description

technical field [0001] The technical field of bridge construction of the present invention relates to a construction method of a prestressed pipeline. Background technique [0002] Due to the rapid development of long-span bridges, it is often necessary to connect prestressed pipes, so the connection of prestressed pipes is widely used in the construction of long-span bridges. The connection method of the traditional prestressed pipeline has the advantages of simple and convenient construction, but there are also problems that the end mold needs to be opened because the prestressed pipeline is too long, and it is easy to break and rupture during the construction process. The rupture of the prestressed pipeline will lead to pipe plugging . For traditional exposed prestressed pipelines, the roots are prone to breakage and rupture during the construction process, and the prestressed pipelines are often connected by drilling holes, which is likely to cause structural damage, an...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the present invention provides a construction method for prestressed pipes in the wet joints of prefabricated concrete components to solve the problem of opening holes in the end molds in the wet joints of traditional prefabricated concrete components. Broken, cracked, blocked tubes, etc.

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