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An inner ring prestressed assembled uhpc tower section for wind power structures

A prestressed and assembled technology, applied in the installation/support of wind turbine configuration, wind power generation, etc., can solve the problems of cumbersome installation and easy local defects, and achieve good integrity, convenient prefabrication and transportation, and convenient operation Effect

Active Publication Date: 2022-05-17
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bolts are often used to connect the pieces in this form, which has the problems of cumbersome installation and prone to local defects

Method used

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  • An inner ring prestressed assembled uhpc tower section for wind power structures
  • An inner ring prestressed assembled uhpc tower section for wind power structures
  • An inner ring prestressed assembled uhpc tower section for wind power structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment discloses an inner ring prestressed assembled UHPC tower section for wind power structures, see figure 1 , the wind power structure is mainly composed of a wind power structure tower 1 , a wind turbine blade 6 and a wind turbine cabin 7 .

[0041] see figure 2 , the tower section 2 is a section of the wind power structure tower 1, including several tower section segments 3 and several prestressed components 5.

[0042] see Figure 3 to Figure 9, the tower section segment 3 is the section that the tower section 2 is equally divided along the perimeter of the cross section, and can be equally divided into 2, 4 or 8 pieces, and this example is selected to be divided into 4 pieces; the tower section Segment 3 includes tower section segment wall 301 , connecting key 302 , connecting groove 303 , anchoring pipe body 304 , perforated steel plate 401 , steel pipe channel 402 and steel connecting sheet 403 . The tower segment segment wall 301 is the tube wall...

Embodiment 2

[0060] The main structure of this embodiment is the same as that of Embodiment 1, further, see Figure 11 , the plurality of anchor pipes 304 on the concave side of the tower segment 3 can be poured into a whole vertically, and the prestressed size and arrangement quantity of the high-performance steel strand 501 can be calculated according to the engineering requirements, and then anchored A steel tube channel 402 is preset in the tube body 304 .

[0061] The integrally poured anchor pipe body 304 can reduce the difficulty of making the formwork of the precast concrete tower section segment 3 standard parts.

Embodiment 3

[0063] The main structure of this embodiment is the same as that of Embodiment 2, further, refer to Figure 12 , multiple groups of anchoring tubes 304 are evenly arranged along the circumferential direction on a single tower section segment 3 .

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Abstract

The invention discloses an inner-ring prestressed assembled UHPC tower section for wind power structures, which includes several tower section segments and several prestressed components, and the tower section is composed of connecting keys on the edges of several tower section segments and The connection grooves are spliced ​​and formed into a whole by the annular prestress formed by tensioning the high-performance steel strands passing through the steel pipe channel. Among them, the tower segment is a standard component cast by ultra-high performance concrete (UHPC), and a steel skeleton is embedded in the body. The tower section of the present invention has excellent mechanical properties and strong integrity, is easy to standardize design and factory prefabrication, and is convenient for transportation and assembly construction; the prestressed components arranged on the inside of the tower can facilitate construction personnel to directly install and operate in the tower, which is practical Strong. The invention has the characteristics of excellent performance and convenient construction, and has good economic benefits and practical value.

Description

technical field [0001] The invention relates to the technical field of wind power structure towers, in particular to an inner ring prestressed assembled UHPC tower section for wind power structures. Background technique [0002] my country's social development has been rapid in recent decades, and it has now become the second largest country in the world in terms of GDP. However, behind the rapid development there are also serious environmental pollution problems, such as the greenhouse effect, smog, acid rain and so on. Today, the international situation is fiercely competitive, and global fossil energy storage can no longer meet the fierce development needs of various countries. At this juncture of the era, it is imperative to develop and utilize clean energy. In recent years, wind energy has been vigorously developed by countries all over the world due to its green, environmental protection and sustainable characteristics. Compared with other energy sources, wind energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D13/20F03D13/25
CPCF03D13/20F03D13/25Y02E10/728
Inventor 白久林李晨辉李文学王宇航周绪红
Owner CHONGQING UNIV