Circular-section concrete supporting structure of fabricated wind turbine generator

A technology for wind turbines and supporting structures, which is applied in the installation/support of wind turbine configuration, wind power generation, etc., can solve the problem that the construction quality of the sealing strip cannot be checked visually, affects the construction quality and construction progress, and damages the structural integrity, etc. problems, to achieve the effect of reducing machining accuracy requirements, enhancing survivability, and improving assembly efficiency

Pending Publication Date: 2021-02-26
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to reduce the transportation size and hoisting weight, the concrete tower usually needs to be prefabricated in pieces in the factory and assembled on site, but the resulting horizontal joints and vertical joints not only destroy the integrity of the structure, but also affect the construction. Quality and Cons

Method used

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  • Circular-section concrete supporting structure of fabricated wind turbine generator
  • Circular-section concrete supporting structure of fabricated wind turbine generator
  • Circular-section concrete supporting structure of fabricated wind turbine generator

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Experimental program
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Embodiment Construction

[0023] Such as Figure 1-6 As shown, the circular cross-section concrete support structure of the prefabricated wind turbine of the present invention, when the cross-section of the tower tube is large, the tower tube can be divided into multiple structural units along the ring direction for prefabrication, and when the height of the tower tube is large, it can be The tower is divided into multiple structural units along the longitudinal direction for prefabrication. The structural unit includes a concrete tower section 1, an upper flange 2 and a lower flange 3 with the same structure, a plurality of longitudinal steel bars 4 connecting the upper flange 2 and the lower flange 3, a plurality of high-strength Bolt 5, prestressed steel strand 6 located at the upper part of the tower section, prestressed steel strand 7 located at the lower part of the tower section, the upper flange 2, the lower flange 3 and the longitudinal reinforcement 4 are integrally cast in the factory, The ...

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Abstract

The invention discloses a circular-section concrete supporting structure of a fabricated wind turbine generator. The circular-section concrete supporting structure comprises at least one structural unit, wherein each structural unit comprises a concrete tower section, tower section inner longitudinal steel bars, an upper flange plate, a lower flange plate, an upper prestressed steel strand, a lower prestressed steel strand and high-strength bolts; the tower section inner longitudinal steel bars, the upper flange plates and the lower flange plates are integrally cast to form an integral frame;concrete is poured between the upper flange plates and the lower flange plates and wraps the tower section inner longitudinal steel bars; a plurality of structural units are annularly connected through the upper prestressed steel strands and the lower prestressed steel strands in a pre-tensioning mode; and a plurality of structural units are vertically connected through the upper flange plates andthe lower flange plates by means of the high-strength bolts to form a conical whole. According to the circular-section concrete supporting structure, the integrity and installation of a concrete tower are effectively improved while the requirements for factory fragment prefabrication and on-site integral assembly are met.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a circular section concrete support structure of an assembled wind turbine. Background technique [0002] my country has become the world's largest carbon dioxide emitter since 2007, and the ever-increasing energy demand has conflicted with the severe task of energy conservation and emission reduction. my country has abundant onshore wind energy resources, and the development of wind power energy has become an important part of the national energy structure transformation strategy. In order to obtain stable power generation, wind turbines are erected high in the sky through support structures. In recent years, the unit capacity, hub height, and wind rotor diameter of wind power structures have been gradually increased. The traditional conical steel tower support structure is increasingly difficult to meet the trend of large-scale development of wind power structures due to its limi...

Claims

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Application Information

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IPC IPC(8): F03D13/20
CPCF03D13/20Y02E10/72Y02E10/728
Inventor 黄小刚任为李守振王宇航
Owner CHONGQING UNIV
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