Connecting device for connecting concrete tower barrel and steel tower barrel

Abstract

The embodiment of the invention provides a connecting device for connecting a concrete tower barrel and a steel tower barrel, which relates to the technical field of the wind power generation, and solves the problems by utilizing the prior art to connect the concrete tower barrel and the steel tower barrel, the stress mechanism and the failure form on the junction are complicated, the safety is low, the cost is high and the stress of the concrete tower barrel is not uniform. In the connecting device, since a steel base plate and a grouting layer are arranged between the concrete tower barrel and the steel tower barrel, the stress area can be increased, the pressure from the steel tower barrel can be scattered, so that the pressure is more uniformly applied onto the concrete tower barrel, the concrete tower barrel is simple and uniform to stress, the unfavorable situation that the local pressure is large can be avoided, meanwhile no shearing force exists inside the concrete tower barrel, the nonuniform situation of the stress on the concrete tower barrel is avoided, and the safety is improved; and in addition, since the concrete tower barrel is connected with the steel tower barrel only by adopting the steel base plate and the grouting layer, the cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of wind power generation, in particular to a connecting device for connecting a concrete tower tube and a steel tower tube. Background technique [0002] The wind turbine tower formed by the combination of steel tower and concrete tower is a commonly used support structure for wind turbines. [0003] There are usually two connection methods between concrete tower and steel tower: embedded and bolted connection. [0004] Among them, the embedded type is specifically: a certain length of the bottom of the steel tower tube is pre-embedded into the concrete tower tube, and the inside of the concrete tower tube is fixedly connected with the concrete tower tube through a specific steel and concrete configuration method. In this connection method, the steel tower tube is embedded in the concrete tower tube structure to form a steel-concrete mixed structure, which has complex stress mechanisms and failure modes, and has low...

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a connection device for connecting concrete towers and steel towers, which solves the problem of complicated and safe stress mechanisms and damage forms at the joints when using the prior art to connect concrete towers and steel towers The problems of low reliability, high cost and uneven force on the concrete tower

Images