Entry-free integral quick-release type box girder internal mold and mounting and dismounting method thereof

Abstract

The invention relates to a box girder internal mold, in particular to an entry-free integral quick-release type box girder internal mold. The internal mold comprises a left internal mold panel, a right internal mold panel and an internal mold supporting device arranged in the left internal mold panel and the right internal mold panel; each of the left internal mold panel and the right internal mold panel is formed by mutually hinging an upper internal mold plate and a lower internal mold plate; the internal mold supporting device further comprises a pull rod, an upper supporting rod and a lower supporting rod. One end of the upper supporting rod is hinged with the upper internal mold panel; the other end of the upper supporting rod is hinged with the pull rod; one end of the lower supporting rod is hinged with the lower internal mold template; and the other end of the lower supporting rod is hinged with the pull rod. According to the internal mold, operation can be effectively carriedout outside the box girder, the internal mold can be dismounted and separated, operation in a limited space inside the box girder is not needed, the working environment is greatly improved, occupational health is sufficiently guaranteed, and the safety coefficient is greatly increased.

Description

technical field [0001] The invention relates to an inner mold of a box girder, in particular to an inner mold of an integral quick-detachable box girder without entry. Background technique [0002] The traditional box girder internal formwork consists of several shaped steel forms and tongue and groove steel forms fixed with bolts to form a set of self-supporting formwork system with sufficient rigidity and strength. The cross-section of the tongue-and-groove steel formwork is trapezoidal, the contact surface with the concrete is the short side, and the inner side of the box girder is the long side. This shape provides a convenient opening for internal manual demolition. [0003] The process flow of the existing manual disassembly and installation construction technology is: remove the bolts → remove the top groove steel mold of the inner mold → remove the top adjacent panel → remove the adjacent side panel → remove the bottom panel → step by step from the inside to the outs...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional internal operation of the box girder belongs to the limited space operation, the internal high temperature, high humidity, less air flow, the operating environment is very harsh, and the safety risk is relatively large; the demoulding sequence must be removed one by one from top to bottom, with many procedures Low; the internal space of the box girder is small, and all steel molds are transported to the interior manually, which requires a large amount of work and difficult assembly

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