Foundation ring, and processing and construction method thereof

Abstract

The invention discloses a foundation ring and a processing and construction method thereof. The foundation ring is used for connecting a tower tube with a foundation and comprises a ring body, a top flange, a bottom flange and a plurality of steel bar connectors. The upper end of the ring body is fixedly connected with the top flange. The tower tube is fixedly mounted through the top flange. The lower end of the ring body is fixedly connected with the bottom flange. The plurality of steel bar connectors. Are fixed to the wall of the ring body and used for being in screwed connection with and being fixed to steel bars. During foundation pouring, the bottom flange, the ring body connected with the bottom flange, the steel bar connectors on the ring body and the steel bars connected with thesteel bar connectors are buried in concrete and finally integrated with a foundation, connection of the foundation ring and the foundation is realized, and the foundation ring is anchored. Through thefoundation ring provided by the invention, there is no need to form holes in the ring body, so that connection operation between the ring body and the steel bars is easy and efficient, and the foundation ring and the foundation are convenient to repair and maintain.

Description

technical field [0001] The invention belongs to the technical field of wind power installations, and in particular relates to a foundation ring and its processing and construction methods. Background technique [0002] In recent years, my country's wind power installed capacity has developed rapidly. Since 2012, my country's wind power installed capacity has been at the forefront of the world. The tower and the foundation are the supporting structures of the wind turbine, and the effective connection between the tower and the foundation is the guarantee for the coordinated work of the upper and lower structures of the wind turbine. At present, the foundation of wind turbines and towers are mainly connected by foundation rings or prestressed anchor bolts. The foundation rings are easy to install and construct, and are widely used in onshore wind turbine foundations. [0003] The lower part of the traditional foundation ring is embedded in the foundation made of steel bars an...

AI Technical Summary

Problems solved by technology

[0004] As an important structure connecting the tower and the foundation, there are many problems in the process of construction and use of the traditional foundation ring. The overlap at the center of the ring makes the operation of piercing the bar difficult; during the long-term fatigue load during the foundation work, the perforated steel bar produces fatigue deformation, shear failure occurs at the pierced bar hole, and even breaks into three sections, which also causes loose concrete around the perforated bar Damage; when the foundation waterproof fails, cracks appear between the foundation ring and the foundation concrete, and the expansion of the cracks accelerates the destruction of the perforated steel bars and surrounding concrete

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