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All-direction prestressing force antifatigue composite steel structure wind tower and installing method thereof

A prestressed, steel structure technology, applied in the installation/support of wind turbine configuration, wind power generation, etc., can solve the problems of low fatigue allowable stress range, low material utilization rate, etc., to achieve extended fatigue life, convenient construction, and materials used little effect

Pending Publication Date: 2017-03-29
QINGDAO SINOSTRO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to fatigue problems in wind power tower structures, for welded structures, the fatigue allowable stress range is low and the utilization rate of materials is low

Method used

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  • All-direction prestressing force antifatigue composite steel structure wind tower and installing method thereof
  • All-direction prestressing force antifatigue composite steel structure wind tower and installing method thereof
  • All-direction prestressing force antifatigue composite steel structure wind tower and installing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] refer to Figure 1-Figure 4 , the omnidirectional prestressed anti-fatigue combined steel structure wind tower of this embodiment adopts a concrete transition section, and the wind tower includes a steel structure tower tube 7, a concrete transition section 6, a lattice tower frame and a base part 9, and the steel structure The tower tube is fixed in the concrete transition section 6, the concrete transition section 6 is located at the top of the lattice tower, and the lattice tower is installed on the foundation part 9, and the lattice tower includes a tower column 1, a prestressed Double steel strand 2, inclined bar 3, cross bar 4, and diaphragm 5. The prestressed double steel strand 2 penetrates from the bottom of the tower column 1 to the top, the bottom end is anchored in the base part 9, and the top end is tensioned and fixed on the At the top of the pylon, the oblique rods are fixed crosswise on the pylon, and the cross bars and diaphragms are fixed on the pylon ...

Embodiment 2

[0028] refer to Figure 5 , as the jacket in the offshore wind turbine foundation, after the construction is completed according to Step 1 to Step 3 of Embodiment 1, piles 13 are driven at the foot of the tower.

Embodiment 3

[0030] refer to Figure 4 , Figure 6-Figure 9 , the omnidirectional prestressed anti-fatigue combined steel structure wind tower of the present embodiment adopts a steel structure transition section, which includes a steel structure tower tube 7, a steel structure transition section 16, a lattice tower frame and a base portion 9, and the steel structure The structural tower 7 is connected to the top of the steel structure transition section 16, and the steel structure transition section 16 is located on the top of the lattice tower, and the lattice tower is installed on the foundation part 9, and the lattice tower includes tower columns 1. Prestressed double steel strand 2, inclined bar 3, cross bar 4, and diaphragm 5. The prestressed double steel strand 2 penetrates from the bottom of the tower column 1 to the top, and the bottom end is anchored to the cable of the base part 9 In the anchoring section 14 , the top end is tensioned and fixed on the top of the tower column 1 ...

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Abstract

The invention discloses an all-direction prestressing force antifatigue composite steel structure wind tower and an installing method thereof. The wind tower comprises a steel structure tower tube, a transition section, a lattice tower frame and basic portions. The steel structure tower tube is fixed in the transition section, the transition section is located at the top of the lattice tower frame, and the lattice tower frame is arranged on the basic portions; the lattice tower frame comprises a tower pillar, prestressing force double steel stranded wires, oblique rods, horizontal rods and diaphragms, and the prestressing force double steel stranded wires penetrate through the tower pillar from the bottom to the top of the tower pillar; bottom ends of the prestressing force double steel stranded wires are fixed in the basic portions in an anchor mode, and the tops of the prestressing force double steel stranded wires are fixed on the top of the tower pillar in a stretch-draw mode; and the oblique rods are fixed on the tower pillar in an intersectional mode, and the horizontal rods and the diaphragms are fixed on the tower pillar in a spaced mode. The structure is reasonable, the force-carrying capability is reliable; and prestressing force is imposed on all sides, the fatigue life is prolonged, material consumption is little, and the construction through the installing method is convenient.

Description

technical field [0001] The invention belongs to the technical field of wind power generation towers, and in particular relates to an omnidirectional prestressed anti-fatigue combined steel structure wind tower and an installation method thereof. Background technique [0002] With the increase of wind power projects in our country, some wind farms with better wind resources have been gradually developed. In order to make better use of wind resources at higher places, wind power towers are gradually developing towards taller towers. Theoretical studies have proved that when the height of the wind power tower exceeds 100 meters, the structural advantages of the combination of the lattice tower and the tower tube are prominent. This structural form can greatly save materials, solve problems such as expensive transportation costs, and thus save engineering costs. . However, due to the fatigue problem in the wind power tower structure, for the welded structure, the fatigue allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/20
CPCY02E10/728Y02E10/72
Inventor 王同华吕兆华
Owner QINGDAO SINOSTRO TECH CO LTD
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