Large multi-rib prefabricated aqueduct formwork anti-deformation support device and construction method

Abstract

The invention provides a large-scale multi-ribbed prefabricated aqueduct formwork anti-deformation support device and construction method. The portal frame is fixedly connected to the outer mold, the beam of the portal frame is fixedly connected to the inner mold through a plurality of inner mold pull rods, and the bottom of the outer mold is provided with a bottom Bracket; between the outer mold and the inner mold, there are multiple pre-embedded tie bar screws; the top of the inner mold is provided with an inwardly bent bending part; the bottom of the inner mold rod is provided with a hook, and the hook hooks the inner The horizontal fence on the inside of the mold is fixedly connected with the horizontal fence, the inner mold tie rod passes through the bending part of the inner mold, and the inner mold tie rod also passes through the crossbeam and pad and is fixedly connected with the nut. The construction method includes the following steps: processing the formwork support device in the factory; adjusting the position of the inner mold and the outer mold to the design size, installing the columns and beams; installing the tie rods of the inner mold, pouring the tank body, and realizing the large-span multi-ribbed prefabricated aqueduct through the above steps The pouring size is accurate and there is no deformation. It overcomes the deformation of the multi-rib prefabricated aqueduct in the pouring process in the prior art.

Description

technical field [0001] The invention relates to the technical field of large-span aqueduct construction, in particular to a large-scale multi-rib prefabricated aqueduct formwork anti-deformation support device and a construction method that can be used in construction of water conservancy, hydropower, bridges and culverts, etc. Background technique [0002] In the engineering construction of highway bridges, water conservancy aqueducts and other fields, it is an increasingly mature technology and process for prefabricated tank body components to be prefabricated in the field and then hoisted and put into engineering use. Compared with bridges, the prefabrication technology of aqueducts in water conservancy projects is characterized by the fact that aqueducts are water-passing structures with high requirements for anti-seepage. Therefore, the dimensional accuracy of prefabricated components is strictly required. When prefabricating multi-rib prefabricated aqueduct structures, ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a large-scale multi-rib prefabricated aqueduct formwork anti-deformation support device and construction method, which can overcome the deformation of the multi-rib prefabricated aqueduct during the pouring process in the prior art, and is convenient for quick installation and disassembly, and can Effectively ensure that the formwork of the prefabricated aqueduct is not deformed, does not float up, and prevents lateral displacement. The structural size after pouring meets the design requirements, and the construction quality of the project is improved.

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