Wind Disaster Vulnerability Study of High-Rise Lightning Rods in Substations

ZHANG Junfeng; JIA Jilong; DONG Xinsheng; GUAN Pinwu

doi:10.13204/j.gyjzG22011406

Volume 53 Issue 4

Apr. 2023

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ZHANG Junfeng, JIA Jilong, DONG Xinsheng, GUAN Pinwu. Wind Disaster Vulnerability Study of High-Rise Lightning Rods in Substations[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(4): 41-45. doi: 10.13204/j.gyjzG22011406

Citation:

ZHANG Junfeng, JIA Jilong, DONG Xinsheng, GUAN Pinwu. Wind Disaster Vulnerability Study of High-Rise Lightning Rods in Substations[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(4): 41-45. doi: 10.13204/j.gyjzG22011406

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Wind Disaster Vulnerability Study of High-Rise Lightning Rods in Substations

doi: 10.13204/j.gyjzG22011406

1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. Xinjiang Electric Power Research Institute, Urumqi 830011, China

Received Date: 2022-01-14
Available Online: 2023-07-01

Abstract

Abstract

Wind disaster vulnerability study was carried out to evaluate the reliability of high-rise lightning rods in substations, due to the accidents induced by wind storms, in which a representative high-rise lightning rod was selected as an example. Latin hypercube sampling and fluctuating wind field simulation were adopted to generate structure samples and wind velocity history samples to incorporate their randomness simultaneously. Static pushover analysis and incremental dynamic time-history analysis, both considering the material nonlinearity, were conducted to obtain the static and dynamic responses respectively. The performance quantized values of four different damage levels were determined according to the top displacement. The valuerability curve was obtained through regression analysis of structural response requiements and load intensity, as well as the vulnarability function, so as to clarify the wind resistance of the structure. In addition, the regression analysis method was discussed in the fitting of the structural response requrements and load intensity, it was found that the double logarithmic form was more reasonable.
- lightning rod,
- wind disaster vulnerability,
- performance level quanitification,
- regression analysis method

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References(25)

References

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