Combined box girder hydraulic internal mould

Abstract

The invention discloses a combined box girder hydraulic internal mold which comprises a template, a guide post, a main beam and a supporting base, wherein the template is connected with the guide post through a regulating post, the main beam is internally provided with a guide sleeve, the bottom of the main beam is provided with a guide rail, the guide post is arranged in the guide sleeve and can slide in the guide sleeve, a reverse idler wheel is arranged on the supporting base, and the main beam is placed on the reverse idler wheel through the guide rail and can slide on the reverse idler wheel for dragging the internal mould out of a beam body. The guide rail is arranged on the main beam, thus the step of additionally paving a mould transferring rail is reduced, and the working efficiency is improved. Meanwhile, different mould collecting modes are adopted for templates on different positions, which ensures that each section of template can meet the requirement for mould collection. The invention has the characteristics of convenience for operation and use, good forming quality of a box girder, high demoulding speed, high production efficiency and the like, and is suitable for designing various types of box girder internal moulds.

Description

technical field [0001] The invention relates to a combined box girder hydraulic internal mold. Background technique [0002] At present, domestic railways, highways and urban bridges are dominated by reinforced concrete structures, and bridge deck components are basically made by prefabrication. Taking the production of concrete box girder as an example, all formwork consists of inner formwork, outer formwork, bottom formwork, end formwork and console. Generally, the inner cavity of a box girder is designed to be in the shape of an inverted trumpet with a large middle and small ends. The main processes include mold assembly, grouting, and mold removal. Smaller, resulting in a small working space for workers, and before the inner mold is moved, it is necessary to lay a running track that pulls out the inner mold, which increases the labor intensity. Especially the combined box girder like Tongqiao (2008) 2227A type, the box girder itself has the characteristics of small inn...

AI Technical Summary

Problems solved by technology

Generally, the inner cavity of a box girder is designed to be in the shape of an inverted trumpet with a large middle and small ends. The main processes include mold assembly, grouting, and mold removal. Smaller, resulting in a small working space for workers, and before the inner mold is moved, it is necessary to lay a running track that pulls out the inner mold, which increases the labor intensity

Especially the combined box girder like Tongqiao (2008) 2227A type, the box girder itself has the characteristics of small inner cavity space and large variation range of the beam body section, so it is more difficult to improve the prefabrication of the box girder through hydraulic integral demoulding. efficiency and quality

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