Test method for wind resistance of transmission towers

A capability test and transmission tower technology, applied in the field of testing, can solve the problem of large error in the test of the wind resistance capacity of transmission towers, and achieve the effect of saving workload

Inactive Publication Date: 2019-02-15
苏州浦立特刀具科技有限公司
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  • Abstract
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Problems solved by technology

Thus ignoring the influence of the interaction between the foundation and the foot of the tower
Although for low-rise buildings on relatively hard foundations, it can be considered reas...

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  • Test method for wind resistance of transmission towers
  • Test method for wind resistance of transmission towers

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Embodiment Construction

[0022] The method for testing the wind resistance capability of transmission towers provided by the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] The invention provides a method for testing the wind resistance capacity of a power transmission tower, which is simpler after combining four independent foundations of the power transmission tower into an integral foundation. Before simplification, the four foundations need to be simulated separately. After simplification, only one foundation needs to be simulated, simplifying the complexity and saving the workload.

[0024] Such as figure 1 As shown, the present invention provides a transmission tower wind resistance test method using the "mass-elasticity-resistance" model, which is to regard the foundation and foundation system as quality steel blocks supported by springs and dampers, and then the springs, dampers Together with the mass rigid block, the...

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Abstract

The invention provides a test method for wind resistance of transmission towers. A 'mass-elasticity-resistance' model is adopted. A foundation and a basis system are regarded as mass steel blocks on spring and damper supports, and the spring, the damper and the mass steel blocks constitute a dynamic motion system together. The static stiffness of the foundation soil is simulated by the stiffness of the spring, and the radiation damping and material damping of the foundation soil are simulated by the damping of the damper. The stiffness coefficient and damping coefficient of the actual soil aredetermined by doing statistics of the physical properties of the soil and the parameters such as the shear modulus. According to the method, the four independent foundations of a transmission power are combined into a whole foundation, so that the structure is simpler. Before simplification, the four foundations need to be simulated separately. After simplification, only one foundation needs to be simulated. The operation is made simpler, and the workload is saved.

Description

technical field [0001] The invention relates to the field of testing, in particular to a method for testing the wind resistance capability of transmission towers. Background technique [0002] At present, when carrying out the wind resistance design of the transmission tower, the influence of the deformation of the foundation, foundation and other parts is not considered, but the tower foot of the transmission tower and the foundation are assumed to be rigidly connected. Thus, the influence of the interaction between the foundation and the tower foot is ignored. Although for low-rise buildings on relatively hard foundations, it can be considered reasonable to treat them as foundation-fixed supports, but for relatively heavy structures on relatively soft foundations, the error in testing the wind resistance of transmission towers is relatively large. [0003] Under the action of wind load, the deformation of the foundation and the foundation will affect the natural vibration...

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Application Information

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IPC IPC(8): G01M5/00G01M13/00G01M9/06G01M9/08
CPCG01M5/0058G01M5/0066G01M9/06G01M9/08G01M13/00
Inventor 李秋霞
Owner 苏州浦立特刀具科技有限公司
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