Reinforcing device and reinforcing method for wind turbine foundation concrete pillar

Abstract

The invention discloses a reinforcing device for a wind turbine foundation concrete pillar, and belongs to the field of wind turbine foundation reinforcement. The reinforcing device comprises a splittype steel ring arranged on the periphery of the concrete pillar, the split type steel ring comprises at least two arc-shaped sections, every two adjacent arc-shaped sections are fastened and connected through a corresponding flange and a corresponding bolt, the steel ring fastened and connected together applies confining pressure to the outer side of the pillar to reinforce the pillar, the innerradius of the steel ring is slightly smaller than the outer radius of the pillar, and the height of the steel ring is equal to the pillar height. The invention further discloses a reinforcing method of the wind turbine foundation concrete pillar. According to the device and the method, through confining pressure loading of the split type steel ring on the concrete pillar, the circumferential tensile stress in the concrete pillar is effectively reduced, generation and expansion of pillar cracks are effectively inhibited, the bonding performance of steel bars and concrete can further be enhanced, the problem that the concrete pillar is prone to cracking and grout emitting is thoroughly solved, and a reliable guarantee is provided for normal operation of a wind turbine. The reinforcing methoddoes not need to damage an existing wind turbine foundation structure, construction is efficient, and manpower and time cost are saved.

Description

technical field [0001] The invention relates to the technical field of wind turbine foundation reinforcement, in particular to a reinforcement device and a reinforcement method for a wind turbine foundation concrete column. Background technique [0002] The foundation forms of onshore wind power generators can basically be divided into foundation ring type and pretensioned anchor bolt type, both of which include concrete pillars arranged outside the foundation ring or pretensioned anchor bolts. The problems of the concrete platform column are as follows: ①The concrete of the platform column is easy to crack, resulting in a gap between the foundation ring or the anchor bolt and the concrete. The larger the gap, the more destructive the dynamic load of the fan operation is to the foundation concrete; When the surface is damaged, the waterproof seal of the pillar is also destroyed, rainwater seeps down along the side of the foundation ring, and mixes with the ground concrete to...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a reinforcement device for the concrete pillar of the wind turbine foundation, so that it can fundamentally solve the problem that the concrete pillar is easy to crack and leak, and thoroughly strengthen the foundation of the wind turbine, so as to provide reliable guarantee for the normal operation of the wind power generating set. Thereby overcoming the deficiencies of the existing fan foundation

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