Method for reinforcing fan foundation through additionally-arranged horizontal steel bars

A technology of wind turbine foundation and horizontal steel bar, which is applied in foundation structure engineering, foundation structure repair, construction, etc., can solve problems such as insufficient bearing capacity of wind turbine foundation, achieve stress reduction, increase embedding depth, expand pressure surface and The effect of moment arm length

Inactive Publication Date: 2017-05-10
CHANGAN UNIV
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a wind turbine foundation reinforcement method by adding hori

Method used

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  • Method for reinforcing fan foundation through additionally-arranged horizontal steel bars
  • Method for reinforcing fan foundation through additionally-arranged horizontal steel bars

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[0018] The present invention will be further explained below in conjunction with the drawings:

[0019] See figure 1 with figure 2 Shown: a method for reinforcing the foundation of a fan with horizontal reinforcement. The fan foundation includes a foundation ring 6 and original concrete 1; the original concrete 1 is wrapped on the sides and bottom of the foundation ring 6, and the height of the original concrete 1 is low At the height of the base ring 6;

[0020] The lower end of the base ring 6 is provided with a lower base flange 3, and the side wall of the base ring is provided with an upper base flange 5 above the transverse steel mesh 9.

[0021] The base ring 6 is welded with a number of thick steel bars 7 in a circle.

[0022] The thick steel bars 7 are provided with several layers, and each layer is provided with a number of thick steel bars 7.

[0023] The reinforcement method includes the following steps:

[0024] 1) A circle of longitudinal steel mesh 8 is erected around th...

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Abstract

The invention discloses a method for reinforcing a fan foundation through additionally-arranged horizontal steel bars. The fan foundation comprises a foundation ring and original concrete. The side faces and the bottom of the foundation ring are wrapped with the original concrete, and the original concrete is lower than the foundation ring. According to the method for reinforcing the fan foundation through the additionally-arranged horizontal steel bars, the multiple layers of horizontal thick steel bars are arranged in new concrete, the buried depth of the foundation ring is increased, connection between the foundation ring and the foundation concrete is enhanced, the stress surface and the force arm length of the concrete under the effects of lateral bending moment and horizontal force are increased, and the stress in the horizontal direction is reduced; and the stress sectional area of the foundation is enlarged through the new concrete provided with a reinforcing mesh, and the bearing capacity of the fan foundation is improved.

Description

technical field [0001] The invention belongs to the field of wind farm building foundations, in particular to a wind turbine foundation reinforcement method for adding horizontal steel bars Background technique [0002] In my country, the codes for foundation design of wind turbines are not perfect. The foundation design of wind turbines generally refers to the relevant codes of construction, electric power and other industries. The wind farm project in the early stage has been stipulated, but no solution has been proposed for the foundation of the wind turbine unit that has been built. The support system of wind turbines belongs to high-rise buildings in structure, but unlike other high-rise buildings, the load conditions of the foundation of large wind turbines are more complicated. Due to the particularity of the force, the stability of the foundation is required to be high. This particularity has resulted in the conservative or unsafe design of the foundations of many b...

Claims

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Application Information

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IPC IPC(8): E02D37/00E02D27/42
CPCE02D27/425E02D37/00
Inventor 李宇李琛吴桂楠付曜杨赐
Owner CHANGAN UNIV
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