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Title:
PREFABRICATED COMPONENT, END TENSIONING DEVICE OF PREFABRICATED COMPONENT, AND TENSIONING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/021523
Kind Code:
A1
Abstract:
Disclosed are a prefabricated component, an end tensioning device of a prefabricated component, and a tensioning method. The prefabricated component comprises a concrete main body and a prestressed steel bar. The prestressed steel bar is located at the interior of the concrete main body and extends along the axial direction of the concrete main body. An end of the concrete main body has a sinking platform. An end of the prestressed steel bar is located in the sinking platform. The interior of the sinking platform is filled with an anticorrosive material so as to wrap the prestressed steel bar located in the sinking platform. The sinking platform at the end of the prefabricated component forms a chamber, and the end of the prestressed steel bar is sunk into the sinking platform at the end of the prefabricated component. The chamber in the sinking platform is filled with an anti-corrosion material, such that after the maintenance of the prefabricated component has reached a standard strength, a completely sufficient protective layer is provided for the steel bar at the end of the prefabricated component. Therefore, the anti-corrosion performance of the end of the prefabricated component can be ensured and the concrete durability of the end of the prefabricated component is significantly increased, such that the protective layer of the steel bar reaches the national standard, thus overcoming gaps in a standard and gaps in technology.

Inventors:
LI QUANMIN (CN)
Application Number:
PCT/CN2020/111860
Publication Date:
February 03, 2022
Filing Date:
August 27, 2020
Export Citation:
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Assignee:
NANJING JULI INTELLIGENT MANUFACTURING TECH INSTITUTE CO LTD (CN)
International Classes:
B28B23/04
Foreign References:
CN101614013A2009-12-30
CN1727599A2006-02-01
CN203357662U2013-12-25
CN108284509A2018-07-17
CN210216171U2020-03-31
CN103556624A2014-02-05
JP2017013379A2017-01-19
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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