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Device and method for releasing a stressing strand

A technology of stress relief and tension cable, applied in the field of tension cable stress relief, which can solve the problems of cost risk, danger of personnel and buildings, etc.

Inactive Publication Date: 2021-09-21
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, on the one hand, a clear danger to persons and buildings and, on the other hand, a cost risk can arise

Method used

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  • Device and method for releasing a stressing strand
  • Device and method for releasing a stressing strand
  • Device and method for releasing a stressing strand

Examples

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Embodiment Construction

[0052] figure 1 A schematic diagram of a wind energy facility is shown. The wind energy installation 100 has a tower 102 and a pod 104 on the tower 102 . An aerodynamic rotor 106 with three rotor blades 108 and a fairing 110 is arranged on the nacelle 104 . The aerodynamic rotor 106 is set in rotational motion by the wind during operation of the wind energy installation, so that the electric rotor or rotating part of the generator is also turned, which is directly or indirectly coupled to the aerodynamic rotor 106 . A generator is provided in the pod 104 and generates electrical power. The pitch angle of the rotor blade 108 is changed by a pitch motor on the rotor root of the respective rotor blade 108 .

[0053] The towers 102 are prestressed concrete towers which have externally guided tensioning elements in the interior of the towers 102 , which each have a plurality of tensioning cables. In order to stress-relieve such tensioning cables, devices for stress-relieving te...

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Abstract

The invention relates to a device (200, 300) and a method (1000) for releasing a stressing strand, in particular a stressing strand (400) of a prestressed tower, preferably a prestressed concrete tower (102) of a wind turbine (100). The invention also relates to a method for dismantling a prestressed tower and to the use of a device (200, 300). The device (200, 300) comprises: a first anchoring unit (210, 310) having a first stressing strand receptacle (213, 313) for a first portion of the stressing strand (400); a second anchoring unit (220, 320) having a second stressing strand receptacle (223, 323) for a second portion of the stressing strand (400); and a lifting unit (240, 340) which is designed to modify a distance (A1, A2) between the first and second anchoring unit (210, 220, 310, 320).

Description

technical field [0001] The invention relates to a device and a method for stress relief of tension cables, in particular tension cables of a prestressed tower, preferably a prestressed concrete tower of a wind energy installation. The invention also relates to a method for dismantling a prestressing tower and the use of the device and a method for stress relief of tensioning cables. Background technique [0002] In concrete buildings which are under heavy loads, tensioning elements are often used in order to prestress the building. In this case, in particular, externally guided tensioning elements are also used which do not extend within the concrete element, for example in the interior of a concrete cladding pipe, but adjoin or adjoin the concrete element Stretch. Especially in the case of towers consisting of or having concrete, externally guided tensioning elements are used. For example, the tower can be manufactured from cast-in-place concrete or assembled from prefab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/16E04G21/12
CPCE04H12/16Y02E10/72F05B2230/70E04G21/121
Inventor 拉尔斯·戈特沙尔克
Owner WOBBEN PROPERTIES GMBH
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