High-stability tower drum foundation ring with uniform stress

Abstract

The present application relates to a kind of high stability tower drum foundation ring of uniform stress, including foundation ring body;The outer side wall of the foundation ring body is fixed with the trapezoidal circular table ring of longitudinal section being right trapezoidal structure;The upper end of the trapezoidal circular table ring is provided with the positioning ring of being set in the outer side wall of foundation ring body;The outer side wall of the positioning ring is provided with bolt for connecting fixed trapezoidal circular table ring at equal interval;The inclined surface of the trapezoidal circular table ring is provided with U-shaped groove staggered with the bolt at equal angle, and the U-shaped groove is provided with reinforcing steel for fixing foundation ring.In the cooperation of positioning ring and trapezoidal circular table ring, the setting of U-shaped groove is used to fix reinforcing steel, and the stability of reinforcing steel connection is enhanced by positioning ring fixed U-shaped groove, the effect that the adjacent reinforcing steel end angle is mutually connected to form whole and fixes foundation ring body, avoid the stress concentration phenomenon generated due to opening.

Description

TECHNICAL FIELD

[0001] The present application relates to a wind power tower foundation ring, in particular to a high stability tower foundation ring with uniform stress. BACKGROUND

[0002] The wind power tower is the tower of wind power generation, which is the basic component of wind turbine generator system, mainly playing the role of supporting and heightening in the wind turbine generator system, and the foundation ring under the tower bears huge vertical pressure and lateral bending moment. The upper end of the traditional foundation ring is connected with the bottom of the generator tower through a flange, and the upper part of the foundation ring is radially holed to allow the steel bars to pass through, and then is embedded in the concrete foundation for fixation. Because of the hole in the upper part of the foundation ring, the connection strength is reduced, and stress concentration phenomenon occurs at the hole, accelerating the structure fatigue. SUMMARY

[0003] In view of the problems existing in the prior art, the present application provides a high stability tower foundation ring with uniform stress, which can effectively solve the problems existing in the prior art.

[0004] The technical scheme of the present application is as follows:

[0005] A high stability tower foundation ring with uniform stress, comprising a foundation ring body, the upper end of the foundation ring body is provided with a flange for connecting the tower section, and the lower end is fixedly connected with a fixed bottom plate; the outer side wall of the foundation ring body is fixedly connected with a trapezoidal circular ring with a straight trapezoidal structure in longitudinal section; the upper end of the trapezoidal circular ring is provided with a positioning ring sleeved on the outer side wall of the foundation ring body, and the positioning ring and the trapezoidal circular ring form a streamlined annular ring; the outer side wall of the positioning ring is provided with bolts for connecting and fixing the trapezoidal circular ring at equal intervals; the inclined surface of the trapezoidal circular ring is provided with U-shaped grooves at equal angles, and the U-shaped grooves are provided with steel bars for fixing the foundation ring; the U-shaped grooves and the bolts are arranged staggered, and the foundation ring body is fixedly connected with a triangular reinforcing plate below the U-shaped grooves.

[0006] The direction of the bolt is perpendicular to the direction of the foundation ring body.

[0007] The advantages of the present application are as follows:

[0008] The foundation ring body of the present application is not provided with an opening, and the strength of the foundation ring body is not reduced. By cooperating the positioning ring with the trapezoidal circular ring, the U-shaped grooves are used to fix the steel bars, and the positioning ring is used to fix the U-shaped grooves, thereby enhancing the stability of the steel bar connection. The adjacent steel bar end angles are connected to form a whole to fix the foundation ring body, thereby avoiding the stress concentration phenomenon caused by the opening. The triangular reinforcing plate is fixed below the U-shaped grooves to increase the strength and stability of the foundation ring body with the U-shaped grooves, and to improve the contact area between the foundation ring and the concrete to improve the firmness. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structural diagram of the application.

[0010] Figure 2 It is the explosion view of the annular ring.

[0011] Figure 3 It is Figure 2 The partial enlarged view.

[0012] Figure 4 It is the partial sectional view of the annular ring. DETAILED DESCRIPTION

[0013] In order to facilitate the understanding of those skilled in the art, the structure of the application will be further described in detail in combination with the drawings:

[0014] Referring to Figures 1-4 A high-stability tower foundation ring with uniform stress, comprising a foundation ring body 1, the upper end of the foundation ring body 1 is provided with a flange 2 for connecting a tower section, and the lower end is fixedly connected with a solid bottom plate 3; the outer side wall of the foundation ring body 1 is fixedly connected with a trapezoidal circular cone ring 4 with a longitudinal section of a right trapezoidal structure; the upper end of the trapezoidal circular cone ring 4 is provided with a positioning ring 6 sleeved on the outer side wall of the foundation ring body 1, and the positioning ring 6 and the trapezoidal circular cone ring 4 form a streamlined annular ring 7; the outer side wall of the positioning ring 6 is provided with bolts 8 for connecting and fixing the trapezoidal circular cone ring 4 at equal intervals, and the bolts 8 are arranged in a direction perpendicular to the arrangement direction of the foundation ring body 1; U-shaped grooves 9 are arranged on the inclined surfaces of the trapezoidal circular cone ring 4 at equal angles, and steel bars 11 for fixing the foundation ring are arranged in the U-shaped grooves 9; the U-shaped grooves 9 are arranged staggered with the bolts 8, and the foundation ring body 1 is fixedly connected with a triangular reinforcing plate 10 below the U-shaped grooves 9.

[0015] The trapezoidal circular cone ring 4 is fixedly welded on the outer side wall of the foundation ring body 1, the steel bars 11 are V-shapedly bent and sleeved in the U-shaped grooves 9, and the two end angles of the steel bars 11 are respectively connected with the end angles of two adjacent steel bars 11; then the positioning ring 6 is sleeved above the trapezoidal circular cone ring 4, the bolt holes 12 of the two are aligned, and the bolts 8 are locked and fixed, and since the inclined surfaces of the trapezoidal circular cone ring 4 and the positioning ring 6 are in contact with each other, the steel bars 11 in the U-shaped grooves 9 are limited, avoiding the steel bars 11 from being separated from the U-shaped grooves 9. The triangular reinforcing plate 10 fixed below the U-shaped grooves 9 increases the strength and stability of the foundation ring body 1 with the U-shaped grooves, and improves the contact area between the foundation ring and the concrete to improve the firmness.

[0016] The present application does not set the opening, on the basis of not reducing the strength of the foundation ring body 1, through the cooperation of the positioning ring 6 and the trapezoidal circular table ring 4, the setting of the U-shaped groove 9 is used for fixing the steel bar 11, and the positioning ring 6 is fixed to the U-shaped groove 9, the stability of the steel bar 11 connection is enhanced, the adjacent steel bar 11 end angle is connected to form a whole to fix the effect of the foundation ring body 1, and the stress concentration phenomenon caused by the opening is avoided. And the annular ring 7 formed by the positioning ring 6 and the trapezoidal circular table ring 4 forms the reinforcing rib effect of the foundation ring body 1, which can increase the contact area with the concrete and improve the firmness.

[0017] The above description is only the preferred embodiment of the present application, and any equivalent changes and modifications made within the scope of the present application are included in the scope of the present application.

Claims

1. A highly stable tower foundation ring with uniform stress distribution, comprising a foundation ring body, wherein the upper end of the foundation ring body is provided with a flange for connecting a tower section, and the lower end is fixedly connected with a base plate; characterized in that: A trapezoidal frustum ring with a right-angled trapezoidal cross-section is fixed to the outer wall of the foundation ring. A positioning ring is fitted onto the upper end of the trapezoidal frustum ring, forming a streamlined annular ring with the trapezoidal frustum ring. Bolts for connecting and fixing the trapezoidal frustum ring are arranged at equal intervals on the outer wall of the positioning ring. U-shaped grooves are arranged at equal angles on the inclined surface of the trapezoidal frustum ring, and reinforcing bars for fixing the foundation ring are arranged within the U-shaped grooves. The U-shaped grooves are staggered from the bolts, and the foundation ring is positioned within the U-shaped grooves. A triangular reinforcing plate is fixedly attached to the bottom; the direction of the bolts is perpendicular to the direction of the base ring; the trapezoidal frustum is fixedly welded to the outer wall of the base ring, the reinforcing bar is V-bent and fitted into the U-shaped groove, and the two end corners of the reinforcing bar are respectively connected to the end corners of two adjacent reinforcing bars; then the positioning ring is fitted on the top of the trapezoidal frustum, the bolt holes of the two are aligned, and the bolts are locked and fixed. Due to the mutual contact of the inclined surfaces of the trapezoidal frustum and the positioning ring, the reinforcing bar in the U-shaped groove can be limited to prevent it from falling out of the U-shaped groove.

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