Internal mold and supporting system of double-variable-pitch hollow plate beam

Abstract

The invention provides an internal mold and supporting system of a double-variable-pitch hollow plate beam, comprising two parts including an internal mold and a supporting structure, wherein the supporting structure is fixedly supported in the internal mold to form a hollow cavity of the double-variable-pitch hollow plate beam; the internal mold is composed of a top plane mold, a left upper corner mold, a right upper corner mold, a bottom plane mold, a left lower corner mold and a right lower corner mold and is of a cuboid cavity shell body; a corner angle is of an inclined-plane chamfered angle and mold opening parts at the two ends are bent inwards to form a variable-pitch plane structure; the supporting structure is composed of upper horizontal rods, lower horizontal rods, a transverse supporting rod and a vertical supporting rod; the upper horizontal rods are in hinged connection with the lower horizontal rods through the vertical supporting rod; the two adjacent upper horizontal rods or the two adjacent lower horizontal rods are in hinged connection through the transverse supporting rod. The internal mold and supporting system of the double-variable-pitch hollow plate beam has the beneficial effects that the molding yield and the construction efficiency are improved and the construction cost is reduced; the product can be easily drawn out from a mold opening and a template is low in damage degree, is completely preserved and can be repeatedly utilized for a plurality of times; the construction cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of formwork equipment for road engineering, and in particular relates to an inner mold and a support system for pouring deformed hollow concrete slab beams. Background technique [0002] Concrete slab beams used in expressway road construction are hollow slab beams. With the improvement of road bearing capacity requirements in expressway construction, structural improvements have been made to the concrete hollow slab beams used in the project. Hollow slab beams are made of It becomes a hollow slab beam with variable joint surface, which increases the bearing capacity of the hollow slab. Due to the change of the structure of the hollow slab beam, the internal cavity structure of the hollow slab girder has changed, and the drawing inner formwork used to cast the hollow slab girder before cannot be used because the size of the closing part of the inner cavity changes. After completion, the inner formwork was s...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the problem that the inner formwork of double-variable hollow slab girders is difficult to dismantle and the construction cost is high, and to provide a variable-section ho

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