A foundation ring and its processing and construction method

Abstract

The invention discloses a basic ring and its processing and construction methods. The foundation ring is used to connect the tower and the foundation, and includes a ring body, a top flange, a bottom flange, and several steel bar connectors. The upper end of the ring body is fixedly connected to the top flange, and the tower is fixedly installed through the top flange; the lower end of the ring body is fixedly connected to the bottom flange, and a number of steel bar connectors are fixed on the ring body wall of the ring body for connecting with the Reinforcement screw connection is fixed. During the foundation pouring process, the bottom flange, the ring body connected to the bottom flange, the steel bar connector on the ring body, and the steel bars connected by the steel bar connector are buried in the concrete, and finally become a whole with the foundation, realizing the foundation Connection of the ring to the foundation, anchoring the foundation ring. The foundation ring provided by the invention avoids the opening of the ring body, makes the connection operation between the ring body and the steel bar simple and efficient, and facilitates the repair and maintenance of the foundation ring and the foundation.

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

Images