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Manufacturing process of concrete board shell with shape being digitally generated

A manufacturing process, concrete technology, applied in the field of digital raw concrete slab and shell manufacturing process, can solve the problems of reducing the bearing capacity of components, destroying structural safety, discounting tensile performance and bending resistance, and achieving the elimination of slab shells The effect of reducing the bearing capacity, reducing the amount of cement, and improving the strength of concrete

Active Publication Date: 2018-12-14
江苏东南结构防灾工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing concrete slab and shell components have the disadvantages of heavy weight, large volume, poor anti-crack and anti-seepage functions, etc., resulting in increased costs in production, transportation, installation, maintenance, safety, etc. and labor-intensive
In addition, special-shaped concrete slab shells in long-span spaces (such as the roof shell of the Serpentine Exhibition Hall, etc.) are difficult to manufacture, and they are made by using the method of externally hooking the building skin, which cannot be used as a load-bearing member
[0003] In addition, most of the existing concrete slabs and shells are reinforced concrete structures, but under long-term unfavorable natural environments and operating conditions, construction, use, and environmental conditions cause structural cracks, and the concrete gradually loses protection for the internal steel bars. When harmful corrosive gases When entering the interior of the structure, the acidic substance combined with water will corrode the steel bar, resulting in the degradation of the mechanical properties of the steel bar, the damage of the concrete section performance, and the decrease of the bonding performance between the steel bar and the concrete, thereby reducing the bearing capacity of the component and directly affecting the use of the component Safety
At the same time, when the concrete is exposed to the outside, it will be carbonized by carbon dioxide in the air, and the protective effect of the concrete on the internal steel will gradually be lost. When the concrete around the steel is completely carbonized, the steel will gradually corrode and expand, which will also damage the structure. Safety, its tensile performance and bending resistance will be greatly reduced

Method used

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  • Manufacturing process of concrete board shell with shape being digitally generated
  • Manufacturing process of concrete board shell with shape being digitally generated
  • Manufacturing process of concrete board shell with shape being digitally generated

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] The digital raw concrete slab and shell manufacturing process of this embodiment is used to generate figure 1 The arched shell structure shown includes the following steps:

[0025] 1) Modeling the formwork support 2 of the plate shell, manufacturing and installing the formwork support 2 of the plate shell by using digital modeling technology, and the final formed formwork support 2 is composed of several support units connected to each other.

[0026] After the design shape of the plate shell is known, the shape of the formwork support can be easily obtained through the existing technology, for example, it can be obtained according to the predetermined thickness extending downward and inward from the lower surface of the plate shell.

[0027] Formwork supports of almost any shape can be generated by digital prototyping technology, such as Figure 4 The profiled shape shown. The bracket units are preferably Y-shaped units, and the bracket units are connected to each o...

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PUM

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Abstract

The invention relates to a manufacturing process of a concrete board shell with the shape being digitally generated, which comprises the steps of 1) modeling a template support of the board shell, andmanufacturing and installing the template support of the board shell by using a digital shape generating technology, wherein the finally formed template support is formed by mutually connecting a plurality of support units; 2) laying a fabric template above or below the template support, wherein the fabric template is fixed with the template support; 3) laying a carbon fiber grid above the template support to serve as ribs; and 4) spraying concrete to the template support to generate a concrete board shell. The manufacturing process not only has the advantages of simple manufacturing and lowcost, but also is particularly applicable to special-shaped concrete board shells with a large-span space.

Description

technical field [0001] The invention relates to a manufacturing process of digitally shaped concrete slabs and shells, which belongs to the technical field of concrete structures. Background technique [0002] Existing concrete slab and shell components have disadvantages such as heavy weight, large volume, and poor anti-crack and anti-seepage functions, which result in increased costs in manufacturing, transportation, installation, maintenance, and safety, and are laborious and labor-intensive. In addition, special-shaped concrete slab shells in large-span spaces (such as the roof shell of the Serpentine Exhibition Hall, etc.) are difficult to manufacture, and they are made by using the method of externally mounting the building skin, which cannot be used as a load-bearing member. [0003] In addition, most of the existing concrete slabs and shells are reinforced concrete structures, but under long-term unfavorable natural environments and operating conditions, construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/342E04G11/36E04G11/48E04G9/08
CPCE04B1/342E04G9/08E04G11/36E04G11/48
Inventor 夏瑾
Owner 江苏东南结构防灾工程有限公司
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