Manufacturing process of digitally shaped concrete slabs and shells

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...

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

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