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A modular prestressed concrete shell and modular shell assembly method

A prestressed and modularized technology, applied in the direction of walls, buildings, building reinforcements, etc., can solve the problems of high construction difficulty, high dismantling difficulty, high cost, etc., to reduce the difficulty and cost of decommissioning, reduce the risk of high-altitude operations on site, and easily The effect of demolition

Active Publication Date: 2019-10-08
中广核工程有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a modularized prestressed concrete shell for the problems of high difficulty in site construction, long construction period, high cost and great difficulty in dismantling when the shell is decommissioned. The concrete shell optimizes the existing integrally poured prestressed concrete shell, so that the optimized concrete shell can speed up the on-site construction progress, reduce the engineering cost, and reduce the risk of high-altitude operations on site. Difficulty and cost of decommissioning

Method used

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  • A modular prestressed concrete shell and modular shell assembly method
  • A modular prestressed concrete shell and modular shell assembly method
  • A modular prestressed concrete shell and modular shell assembly method

Examples

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Embodiment 1

[0037] Such as figure 2 As shown, the modular prestressed concrete shell includes: a bottom plate 1 and a dome 2, and also includes several cylinder shell modules 3, each of which has a main body portion 31 and is arranged on the main body portion 31 The connecting portion 32 on the peripheral surface; the dome 2 and each of the main body parts 31 are provided with at least one set of prestressing tendon tunnels 4 for allowing the prestressing tendons 5 to pass through; the periphery of each of the main body parts 31 The connecting portion 32 on the peripheral surface is plugged with the connecting portion 32 on the outer peripheral surface of another adjacent main body portion 31, and is plugged into the prestressing tendon tunnel 4 of each of the main body portions 31. Stress ribs 5 connect each adjacent main body portion 31, so that several cylinder shell modules 3 are combined and fastened to form a cylinder, one side of the cylinder is poured and connected with the botto...

Embodiment 2

[0048] Such as Figure 5 As shown, Embodiment 2 of the present invention provides a method for assembling a modular prestressed concrete shell, including the following steps:

[0049] S1, pouring the shell bottom plate 1 and the dome 2 of the reinforced concrete structure;

[0050] S2. According to the design size of the shell, the size of each shell shell module 3 is obtained and factory prefabricated;

[0051] S3. Connect each cylinder shell module 3 with the adjacent cylinder shell modules 3 horizontally end-to-end through the connecting portion 31 and the prestressed ribs 5, and fill the splicing gap between the cylinder shell modules 3 with waterproofing , anti-corrosion materials, forming several layers of annular module circles;

[0052] S4. Vertically splice several layers of ring-shaped module circles through the connecting portion 31 of each cylinder shell module 3 and the prestressed ribs 5, and fill the splicing gap between the cylinder shell modules 3 with water...

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Abstract

The invention discloses a modular prestressed concrete shell body comprising a base plate and a dome which are poured in site and further comprising a plurality of cylinder body shell body modules. A connecting part on the peripheral surface of a main body part of each cylinder body shell body module and a connecting part of a main body part of the corresponding adjacent cylinder body shell body module are inserted mutually and connected through prestressed bars of prestressed bar hole channels in the main body parts of the cylinder body shell body modules to enable the multiple cylinder body shell body modules to be combined to form a cylinder body. One side of the cylinder body is connected with the base plate in a pouring mode, and the other side of the cylinder body is connected with the dome through the prestressed bars inserted into the prestressed bar hole channels in the cylinder body and the dome in a penetrating mode. The invention further discloses a modular prestressed concrete shell body assembling method. Through the modular prestressed concrete shell body, the problem that an existing shell body is high in site construction difficulty, long in construction period and large in dismantling difficulty at the time of decommissioning.

Description

technical field [0001] The invention relates to a concrete shell, in particular to a modular prestressed concrete shell and a modular shell assembly method, which belong to the technical field of civil engineering and are mainly used in shells in engineering construction, such as nuclear island safety shells Or liquefied natural gas (LNG) storage shell. Background technique [0002] In engineering construction, prestressed concrete shells are generally used to provide protective barriers for equipment and structures inside the shells, such as nuclear island containment shells, etc.; or directly as storage containers, such as LNG shells. Usually, this kind of shell should not only be able to resist external impact, protect the internal equipment or structures of the shell, but also bear a certain internal pressure of the shell. Therefore, the existing shell usually adopts a prestressed concrete structure, that is, after the shell concrete is poured, the prestressed tendons a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B2/56E04B1/32E04C5/10
Inventor 蔡鹤松
Owner 中广核工程有限公司
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