Overturn-preventing wind generating set foundation ring well stressed

Abstract

The invention discloses an overturn-preventing wind generating set foundation ring well stressed. The overturn-preventing wind generating set foundation ring well stressed comprises a steel cylinder. An upper flange is arranged on the top of the steel cylinder, a lower flange is arranged on the bottom of the steel cylinder, and the part, below the upper flange, of the steel cylinder is buried in concrete. A reinforcing ring is arranged in the part, located inside surface-layer concrete, of the outer wall of the steel cylinder, and a plurality of upper sheet stiffening ribs are uniformly arranged below the reinforcing ring and along the outer wall of the steel cylinder. A plurality of lower sheet stiffening ribs are uniformly arranged above the lower flange and along the outer wall of the steel cylinder. Lower flange anchor bolts are in bolt connection with the lower flange through holes uniformly formed in the lower flange. Cylinder body studs are uniformly arranged on the outer wall of the part, buried in the concrete, of the steel cylinder according to calculation. By arranging the reinforcing ring, the stiffening ribs, the cylinder body studs, the lower flange anchor bolts and the like, the wind generating set foundation ring can well prevent partial failure of the concrete, sliding and overturning.

Description

technical field [0001] The invention belongs to the foundation ring of wind power generators, and in particular relates to a foundation ring with good stress and anti-overturning for inland and offshore fan units. Background technique [0002] At present, with the massive construction of onshore wind turbines, engineering quality accidents occur from time to time. The vast majority of engineering accidents are caused by the long-term wind load of the wind turbine foundation. The foundation ring concrete near the main wind direction (due to construction reasons, the quality of the surface concrete is often poor) is prone to cracking or local crushing, forming cracks, resulting in Fan oscillates. If the swinging fan is not treated in time, as time goes by, due to the accumulated shear fatigue, impact and rain erosion of the concrete, the concrete cracks around the main wind direction of the foundation ring will continue to extend outward and downward, and the swing of the fan...

AI Technical Summary

Problems solved by technology

[0003] The traditional wind turbine foundation ring design fails to fully consider that the damage of the wind turbine foundation may be caused by local cracking and crushing of the surface concrete, and swaying occurs after the cracks are formed, and no effective measures are taken in the structure to reduce the cracking and local crushing of the concrete And improve the wind turbine's ability to resist overturning

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