New Intensive Construction Technology of Highway Prefabricated Box Girder

Abstract

The invention discloses a novel intensive construction technology for a highway precast box beam. The technology comprises the following steps that a movable beam manufacturing pedestal enters a reinforcing steel bar binding region; bottom and web reinforcing steel bars are bound; the pedestal enters a concrete cast region; an external mold is pushed in place; an inner mold is installed; top platereinforcing steel bars are bound; a top plate prestress pipeline; an anchorage device and an end mold are installed; a beam concrete is poured; the inner mold and an outer mold are disassembled in sequence; the pedestal enters a translation region; a translation platform drives the movable beam manufacturing pedestal to move transversely; the movable beam manufacturing pedestal enters a maintenance tension region; a beam body is maintained; tensioning and pulse pressing are performed; anchor sealing is performed at the beam end, and plug concrete is poured; the beam is moved. The constructionwork of the precast box beam is sequentially provided with a production line construction mode according to the construction sequence, during the working procedure after construction, the previous working procedures are performed all the time, and intensive construction is performed, so that the construction efficiency is sufficiently improved, workers at each working procedure only needs to be responsible for the quality of the working procedure, the professional degree of workers is increased, and the construction quality is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of road and bridge construction, and in particular relates to a novel intensive construction process of prefabricated box girders for highways. Background technique [0002] The existing common construction method of highway prefabricated box girder is to assemble the steel skeleton on the production base in sequence, install the inner and outer molds, pour, remove the inner and outer molds, maintain, stretch and grout. The processing and production process of prefabricated box girder is complete in the same area. It is necessary to wait for the completion of the previous process before starting the next process. It is often necessary for workers to switch types of work repeatedly. It is difficult for different workers to play their professionalism and the production quality of box girder is difficult to guarantee. And the construction efficiency is low. Contents of the invention [0003] In order to solv...

AI Technical Summary

Problems solved by technology

The processing and production process of prefabricated box girder is complete in the same area. It is necessary to wait for the completion of the previous process before starting the next process. It is often necessary for workers to switch types of work repeatedly. It is difficult for different workers to play their professionalism and the production quality of box girder is difficult to guarantee. And the construction efficiency is low

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