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Glass fiber mesh reinforced concrete permanent column formwork and preparation method thereof

A technology for reinforcing concrete and glass fiber, applied in the directions of columns, piers, pillars, etc., can solve the problems of inability to prepare columns with complex shapes without dismantling templates, doubtful effects on durability, and low cost, so as to reduce the difficulty of formwork and manufacturing. cycle, improve the overall mechanical performance, and facilitate the effect of preparation

Inactive Publication Date: 2018-11-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reinforcement cage is placed in ultra-high-performance concrete, and the core is plain concrete. Therefore, the ultra-high-performance concrete layer is relatively thick, and the cost is not low. The minimum protective layer of steel reinf

Method used

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  • Glass fiber mesh reinforced concrete permanent column formwork and preparation method thereof
  • Glass fiber mesh reinforced concrete permanent column formwork and preparation method thereof
  • Glass fiber mesh reinforced concrete permanent column formwork and preparation method thereof

Examples

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preparation example Construction

[0050] The present invention also provides a method for preparing a glass fiber mesh reinforced concrete demolition-free column form, the preparation method comprising the following steps:

[0051] 1) According to the column design information, determine the shape parameters of the free column formwork and the parameters of the glass fiber mesh 2;

[0052] 2) Obtain the geometric parameters of inversion mold 3 and outversion mold 4 according to the shape parameter design of the free formwork;

[0053] 3) Utilize the additive manufacturing technology to make the inversion mold 3, and then fix the glass fiber grid 2 on the inversion mold 3;

[0054] 4) Utilize the additive manufacturing technology to make the eversion mold 4, which is combined with the inversion mold 3 to form a whole;

[0055] 5) Pouring ultra-high performance concrete between the inward-turning form 3 and the outward-turning form 4;

[0056] 6) Maintain and remove the formwork to obtain the glass fiber grid ...

Embodiment 1

[0063] A kind of glass fiber grid reinforced concrete free column formwork (such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown), the demolition-free column formwork includes a hollow ultra-high performance concrete layer 1 and a glass fiber grid 2 built in the wall of the hollow ultra-high performance concrete layer 1, and the shape of the hollow ultra-high performance concrete layer 1 is a hollow elliptical cylinder , the diameter of the upper bottom surface is smaller than that of the lower bottom surface, the thickness is 20mm, the slump spread is 750mm, the 28d compressive strength is 148.1MPa, and the flexural strength is 18.4MPa; A rectangular parallelepiped shear bump 11 of 6mm;

[0064] In the first wall of the hollow ultra-high-performance concrete layer, a layer of glass fiber grid 2 is arranged along the circumferential direction of the layer wall, and the mesh distance of the glass fiber grid 2 is 10 mm.

[0065] A kind of pr...

Embodiment 2

[0082] A glass fiber grid reinforced concrete demolition-free column formwork, the demolition-free column formwork includes a hollow ultra-high performance concrete layer 1 and a glass fiber grid 2 built in the hollow ultra-high performance concrete layer 1 wall, the hollow ultra-high performance concrete layer The shape of the concrete layer 1 is a hollow square column with a thickness of 30 mm, a slump expansion of 550 mm, a 28d compressive strength of 120 MPa, and a flexural strength of 15.1 MPa; the inner surface of the hollow ultra-high performance concrete layer 1 has a height of 10mm hemispherical shear bump 11;

[0083] In the first wall of the hollow ultra-high performance concrete layer, two layers of glass fiber mesh 2 are arranged along the circumferential direction of the layer wall, the distance between the two layers is 10mm, and the mesh distance of the glass fiber mesh 2 is 12mm.

[0084] A kind of preparation method of glass fiber grid reinforced concrete fre...

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Abstract

The invention discloses a glass fiber mesh reinforced concrete permanent column formwork and a preparation method thereof. The permanent column formwork comprises a hollow ultra-high performance concrete layer and a glass fiber mesh, and shearing resistance convex blocks are arranged at the inner surface of the hollow ultra-high performance concrete layer. The preparation method of the glass fibermesh reinforced concrete permanent column formwork includes the steps that 1) a shape parameter and a glass fiber mesh parameter of the permanent column formwork are determined according to the column design information; 2) the geometric parameters of an inside turning mould and an outside turning mould are designed and obtained according to the shape parameter of the permanent column formwork; 3) the inside turning mould is manufactured by using additive manufacturing technology, and then the glass fiber mesh is fixed on the inside turning mould; 4) the outside turning mould is manufacturedby using the additive manufacturing technology, and then the outside turning mould is combined with the inside turning mould to form a whole; 5) ultra-high performance concrete is poured between the inside turning mould and the outside turning mould; and 6) maintaining and mould demolishing are carried out to obtain the glass fiber mesh reinforced concrete permanent column formwork. The permanentcolumn formwork is suitable for the manufacture of curving columns of personalized buildings, the integrity is good, the cost is low, the durability is excellent, and manufacturing is convenient.

Description

technical field [0001] The invention relates to a glass fiber grid reinforced concrete demolition-free column form and a preparation method thereof, belonging to the technical field of composite column structures in civil engineering. Background technique [0002] In recent years, the rapid development of China's economy has further improved the aesthetic level of the people. Traditional and regular architectural styles are difficult to meet the requirements of urban diversification, and the pursuit of individuality in architecture has become a new demand. Some high-level architects, represented by Zaha Hadid, are good at bold use of space and geometric structures and are highly respected in the domestic market. The Guangzhou Grand Theater and Nanjing Youth Olympic Center are all representative works of this type of architectural personality. Curves are an important means for architects to express their design concepts. In the traditional cast-in-place construction method, h...

Claims

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Application Information

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IPC IPC(8): E04C3/34B33Y80/00
CPCB33Y80/00E04C3/34
Inventor 周臻张逸王永泉田会文
Owner SOUTHEAST UNIV
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