Cast-in-place ultra-high performance concrete (UHPC) combined shielding shell

A combined shielding and ultra-high-performance technology, which is applied in the direction of protective buildings/shelters, building types, buildings, etc., can solve the problems of difficult construction, high construction and operation and maintenance costs, and long construction period, so as to maintain the overall Stress performance, reduce damage, not easy to break

Inactive Publication Date: 2021-06-25
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the same protection effect, the thickness of the reinforced concrete (RC) shielding shell is relatively large and the construction period is long, while the thickness of the steel plate-concrete (SC) shielding wall is small, but the construction is difficult and the construction and operation and maintenance costs are high

Method used

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  • Cast-in-place ultra-high performance concrete (UHPC) combined shielding shell
  • Cast-in-place ultra-high performance concrete (UHPC) combined shielding shell

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Embodiment

[0022] Such as figure 1 with figure 2 As shown, the cast-in-place combined shielding shell of the present invention includes a UHPC layer 1, a rigid non-disassembly formwork 2, an RC layer 3 and a back crack-proof panel 4; the rigid non-disassembly formwork 2 is arranged on the UHPC layer 1 and the RC layer 3, it is used as the separation zone between UHPC layer 1 and RC layer 3 during construction; The rooms are connected to each other through connectors 9 (i.e. civil structural construction measures).

[0023] The stud 5 is welded on the back anti-crack panel 4 for connecting the back anti-crack panel 5 and the RC layer 3; the stud 5 can be made of high-strength carbon steel or low-alloy steel.

[0024] The UHPC layer 1 is poured with ultra-high performance concrete, and the UHPC layer 1 is equipped with structural steel bars 8 .

[0025] The RC layer 3 is poured with ordinary strength concrete, and the RC layer 3 is equipped with RC layer main reinforcement 6 and RC lay...

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Abstract

The invention aims to disclose a cast-in-place ultra-high performance concrete (UHPC) combined shielding shell. The cast-in-place ultra-high performance concrete (UHPC) combined shielding shell comprises a UHPC layer, a stiff non-dismantling formwork, an RC layer and a back anti-cracking panel; the stiff non-dismantling formwork is arranged between the UHPC layer and the RC layer, and the RC layer is arranged between the UHPC layer and the back anti-cracking panel; and the RC layer and the UHPC layer are connected and fixed with each other through a connecting piece. Compared with the prior art, the cast-in-place ultra-high performance concrete (UHPC) combined shielding shell has the advantages that the UHPC layer has high strength and toughness and is not prone to being broken and splashing under high-speed impact, the back anti-cracking panel avoids back scab pieces, the overall stress performance of an impacted part can be well maintained, then damage of impact of a flying object to a main body structure is reduced, and the purpose of the cast-in-place ultra-high performance concrete (UHPC) combined shielding shell is achieved.

Description

technical field [0001] The invention relates to a cast-in-place ultra-high performance concrete (UHPC) combined shielding shell, in particular to a cast-in-place ultra-high performance concrete (UHPC)-reinforced concrete (RC)-back anti-crack panel combined shielding shell. Background technique [0002] In order to deal with the threat of large missiles, buildings with special protection requirements generally use shielding shells on the surface to protect the main structure. Taking a nuclear power plant as an example, in order to protect the reactor from external events (large missile impact, tornado, etc.), it is necessary to set up a containment shell (ie shielding shell) outside the reactor. Common nuclear power plant reactor outer shielding shells include: traditional reinforced concrete (RC) shielding shells and steel plate-concrete (SC) shielding walls that have been widely used in recent years. In order to achieve the same protection effect, the thickness of the rein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H9/00E04B1/92
CPCE04H9/00E04B1/92
Inventor 程书剑郑明光李成李韶平豆燚
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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