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Forming mold and construction method for prefabricated hollowed-out concrete member

A technology for precasting concrete and forming molds, which is applied to molds, manufacturing tools, ceramic molding machines, etc., can solve the problems of difficult demoulding, inconvenient construction and installation, and difficulty in guaranteeing the dimensional accuracy of components, so as to increase the number of repeated demoulding and improve demoulding. The effect of mold efficiency and production cost reduction

Inactive Publication Date: 2021-07-02
上海鼎中新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, for super-large hollow concrete components, there are many defects in the existing super-large hollow component prefabricated molds, such as steel molds, aluminum molds and other metal molds with single decorative shapes, and because of their high rigidity, it is difficult to demould, and some are even unfeasible; For rubber molds such as silica gel and polyurethane glue, when the size is large, the elastic deformation will be large, and the error will be more than 10 mm. It is difficult to guarantee the dimensional accuracy of the components. For assembled prefabricated components, the accuracy is often required at the level of 1 to 3 mm. , the error is too large to cause inconvenience in construction and installation, etc.

Method used

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  • Forming mold and construction method for prefabricated hollowed-out concrete member
  • Forming mold and construction method for prefabricated hollowed-out concrete member
  • Forming mold and construction method for prefabricated hollowed-out concrete member

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Embodiment 1

[0096] The size of the concrete components required by Dongfang Lvzhou Station on Metro Line 17 is 3885mm wide, 9640mm long, and 300mm thick, which is a super-sized hollowed out concrete component. A plurality of modules are arranged to form a forming structure, so that the precast concrete pouring cavity conforms to the shape of the components to be prepared. The modules are provided with an inner core column and an outer mold layer in sequence from the inside to the outside. The material of the inner core column is steel, and the outer mold layer The material of the layer is polyurethane, and the contact surfaces of the two are combined with a slope. The slope angle of the side of the inner core column relative to the vertical direction is 5°, and the slope angle of the second vertical surface of the outer mold layer relative to the vertical direction is 5°. °, the inner stem and the outer mold layer are integrally formed to form mold 1#. In mold 1#, the module meets W≥u×S, ...

Embodiment 2

[0098] Construct super-sized hollow concrete components, arrange multiple modules to form a molding structure, so that the precast concrete pouring cavity conforms to the shape of the components to be prepared. The material is steel, and the material of the outer mold layer is polyurethane. The contact surface of the two is combined with a slope. The inclination angle in the vertical direction is 85°, and the inner stem and the outer mold layer are integrally formed to form mold 2#. In mold 2#, the module meets W≥u×S, u is 3. After pouring concrete in the prefabricated concrete pouring cavity between adjacent modules, curing and demoulding are carried out to obtain the required oversized prefabricated hollow concrete component.

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Abstract

The invention provides a forming mold for a prefabricated hollowed-out concrete member. The forming mold comprises a working platform and a forming structure located on the working platform, wherein the forming structure comprises a plurality of modules, each module comprises an inner core column, the side face of each inner core column is wrapped with an outer mold wrapping layer, and the adjacent modules are spaced to form prefabricated concrete pouring cavities. The invention further provides a construction method for the prefabricated hollowed-out concrete member. According to the forming mold and the construction method for the prefabricated hollowed-out concrete member, the problems that an existing mold for preparing an oversized hollowed-out concrete member is extremely difficult to demold or the member is fractured due to the conditions of complex rib distribution, non-prestress and the like formed by a curved hollowed-out shape of the member can be solved, and the prepared concrete member is high in dimensional precision and low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of concrete moulds, and relates to a forming mold for a prefabricated hollow concrete component and a construction method thereof, in particular to a forming mold for a prefabricated ultra-large hollow concrete component and a construction method for the prefabricated ultra-large hollow concrete component. Background technique [0002] Prefabricated concrete components are building components prefabricated in factories with concrete as the basic material, including beams, slabs, columns, and decorative panels for interior and exterior use. Prefabricated concrete components need molds during the prefabrication process. The existing concrete component prefabrication process is usually poured in a fixed mold. After the concrete is formed, the formwork is removed, and then the mold is assembled again for subsequent component pouring. [0003] However, for super-large hollow concrete components, there are many de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/18B28B7/00B28B7/34
CPCB28B7/18B28B7/0014B28B7/348B28B7/34
Inventor 陈新华戎雪坤矫民宋明阳
Owner 上海鼎中新材料有限公司
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