A construction method for prestressed pipes in wet joints of prefabricated concrete components

Abstract

A construction method for a prestressed pipeline in a wet joint of a prefabricated concrete component, comprising: installing and fixing the prestressed pipeline pre-buried section of the prefabricated concrete component before pouring concrete, and installing plugs at both ends; the plugs are tightly plugged into the prestressed In the pre-embedded section of the pipeline, the outer side of the plug cap is flush with the formwork of the prefabricated concrete component; after the initial setting of the concrete, the plug at the end of the pre-stressed pipeline embedded section is pulled out to form the joint part of the prestressed pipeline; the prestressed pipeline The connecting sections are respectively connected to the joints of the embedded sections of the prestressed pipes at both ends, and the surrounding parts of the prestressed pipes are sealed with structural glue to complete the connection of the prestressed pipes; the concrete of the wet joints is poured to form a whole. The invention prevents the two ends of the pre-embedded prestressed pipe from being exposed, which can avoid the opening of the end mold when the prefabricated component is poured; it can effectively prevent the traditional exposed prestressed pipe from being easily broken and broken at the root during the construction process, and reduce the pressure on the prestressed pipe. Risk of pipe blockage.

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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