Concrete core slab prefabricated internal mold, assembling frame and assembling method

Abstract

The invention discloses a concrete core slab prefabricated internal mold, an assembling frame and an assembling method for improving the prefabricating efficiency of the concrete core slabs. The prefabricated internal mold comprises a steel pipe, a support frame and outer wrapping cloth, wherein the steel pipe is arranged at the periphery of the support frame, the corners of the support frame are tied up with the steel pipe in a fixed manner, and the outer wrapping cloth is wrapped outside the steel pipe and is tied up and fixed; when the assembling frame is used, the quantity of the assembling frame and the length of the steel pipe are determined according to the length of the concrete core slab, and the concrete core slab prefabricated internal mold are manufactured segmentally; the steel pipe splicing operation is convenient, the steel pipe is easy to replace and maintain, the material selection is convenient and the manufacture cost is low; the concrete core slab prefabricated internal mold can be assembled simply and rapidly, especially the internal mold can be conveniently and rapidly disassembled without needing operators to enter the internal mold to operate, therefore, the labor force is saved, the project progress is accelerated, the production safety is ensured, the concrete core slab prefabricating efficiency is remarkably improved and the production cost is reduced.

Description

technical field [0001] The invention relates to a prefabricated tool and process for concrete hollow slabs for bridge construction, in particular to a prefabricated inner mold for concrete hollow slabs, an assembly frame and an assembly method, which improve the prefabrication efficiency of concrete hollow slabs. Background technique [0002] With the popularization and continuous improvement of concrete hollow slab prefabrication technology, the progress of hollow slab prefabrication is also getting faster and faster, and the assembly process of hollow slab internal formwork is also tending to be diversified, but the steel plate internal formwork is more commonly used at present. The inner mold of the steel plate is assembled in sections, and each section is provided with two bolts on the left and right, and the sections are fixed with bolts to form an integral inner mold with the same size and length as the concrete hollow slab, which is hoisted by a gantry crane or a crane...

AI Technical Summary

Problems solved by technology

Although this kind of steel plate inner mold process is very mature, there are still many disadvantages: 1. The steel plate inner mold itself has a large weight. During the assembly and dismantling process, more labor and machinery are required, and there are potential safety hazards for workers during operation.

2. Because the inner formwork of the steel plate is self-heavy, during the overall hoisting process, it is easy to squeeze the web reinforcement skeleton when lowering the formwork to deform and destroy the reinforcement protection layer pad, resulting in uneven thickness of the poured hollow slab product protection layer

3. When a piece of steel formwork deforms greatly, it cannot be repaired and flattened, and must be replaced separately, which increases the production cost

4. It takes a long time for the steel plate inner formwork to be assembled, hoisted, and dismantled, which affects the progress of the project and increases the cost of the project

5. The inner cavity of the hollow plate is generally 30cm-90cm, and the workers cannot work normally inside

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