Light-material hollow floor system internal mould

Abstract

The invention discloses a beamless hollow floor system internal mould. The internal mould consists of: 1, a light material, 2, a hollow core, 3, a wrapping layer, and 4, a reinforced layer; and plugs are arranged at the two ends of the internal mould. The light-material body of the internal mould is a light material with the hollow core; and when conditions permit, the light-material body can also be solid. The shapes of the internal mould comprise polygons, combinations of straight lines and arc lines, circles or ellipses. The hard reinforced layer is coated or bonded to the upper surface or / and the side surface of the light material; the wrapping layer is wound or coated on the periphery of the light material. When a late-period hardening material such as a cement mortar material is adopted, the reinforced layer can be cancelled. The internal mould saves materials, and has low cost, light weight, and very high economic performance and applicability.

Description

Technical field [0001] The invention belongs to the technical field of general building structures. Background technique [0002] Since the early 1990s, in the field of construction and bridge structure engineering in my country, the engineering application and related research of cast-in-place concrete floors have gradually increased. The cast-in-place concrete hollow floor is a floor that forms a cavity in the floor slab by pouring concrete on site after placing the embedded inner formwork. The "inner mold" is an object embedded in the cast-in-situ concrete hollow floor to form a cavity and not taken out, and the "inner mold" does not participate in the structural force. When the concrete is formed and reaches the design strength, the inner mold has completed its "working mission". [0003] At present, several types of filling "inner molds" for concrete floors have been developed in China and related patents have been applied for. The materials used are roughly metal mat...

AI Technical Summary

Problems solved by technology

If it is directly filled with lightweight foaming materials, firstly, the surface of the material itself is soft, and it is easy to deform if the external force is too large; secondly, hard metal scratches are likely to produce debris that pollutes the construction environment, and even affects the quality of concrete pouring; lightweight foaming materials are solid Filling body, its production cost is also higher

Images