Guide pillar type hydraulic internal mold for straight web plate box girder

Abstract

The invention discloses a guide pillar type hydraulic internal mold for a straight web plate box girder. The internal mold comprises a template, a jacking guide pillar, a main girder, a supporting base, a telescopic supporting rod, sideward oil tanks and a jacking oil tank, wherein both sides above the main girder are provided with a sideward guide sleeve symmetrically; sideward guide pillars are sleeved in sideward guide sleeves; the end parts of the side guide pillars are fixedly arranged on the inner side of an upper movable template; the sideward oil tanks are parallelly arranged on the sideward guide sleeves; and the piston ends of the sideward oil tanks are also arranged on the inner side of the upper movable template. By the hydraulic internal mold, the template can be more quickly and conveniently assembled and disassembled, labor intensity is reduced, and the prefabrication construction period of the box girder is greatly reduced, so that production speed is ensured; and the mold is suitable for mass production of prefabricated box girders and can be popularized to be used for designing box girder internal molds of the same type.

Description

technical field [0001] The invention relates to a straight web box girder guide column type hydraulic internal mold. Background technique [0002] At present, the box girders designed and used in domestic high-speed railway construction mainly include two types: straight web and oblique web according to the structural form of the web. Straight web structures generally appear in single-line full-hole box girders and composite box girders. The width-to-height ratio of the inner cavity section is small, and the cross-sectional size of the beam body varies greatly. The section design of the formwork according to the traditional section method cannot The integral hydraulic demoulding is realized. Therefore, when the mold is released, it is necessary to manually disassemble part of the formwork to meet the needs of the mold release, which increases the labor intensity and affects the beam-making efficiency. Contents of the invention [0003] The purpose of the present invention...

AI Technical Summary

Problems solved by technology

Straight web structures generally appear in single-line full-hole box girders and composite box girders. The width-to-height ratio of the inner cavity section is small, and the cross-sectional size of the beam body varies greatly. The section design of the formwork according to the traditional section method cannot The integral hydraulic demoulding is realized, so when the mold is released, it is necessary to manually disassemble part of the formwork to meet the needs of the mold, which increases the labor intensity and affects the efficiency of beam making

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