Bearing capacity and reinforcement analysis of a high voltage substation framework with lightning rods
[1]Dynasty,Zhao Guifeng,Liu Ran,et al.Bearing capacity and reinforcement analysis of a high voltage substation framework with lightning rods[J].Journal of Zhengzhou University (Engineering Science),2020,41(03):85-90.[doi:10.13705/j.issn.1671-6833.2019.02.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
41
Number of periods:
2020 03
Page number:
85-90
Column:
Public date:
2020-07-29
- Title:
- Bearing capacity and reinforcement analysis of a high voltage substation framework with lightning rods
- Keywords:
- Frame lightning rod structure; Static bearing capacity; wind-induced dynamic response; intersecting node
- CLC:
- -
- Abstract:
- finite element model of a typical substation framework with lightning rods was established by using ANSYS software. The static bearing capacity and wind-induced dynamic response analysis were carried out under the design load combination conditions. The results show that the stress concentration phenomenon is easy to occur due to the structural defects in the T type tubular joint of the typical substation structure with lightning rods, and it can be effectively relieved by installing stiffening ribs in the T type tubular joint area. Furthermore, the lightning rod designed by the current standard static method is unsafe. In actual design, it is suggested that the results of the pseudo static method be multiplied by a dynamic amplification factor of less than 1.6 to take into account the adverse effects of the pulsating wind on the structure
- References:
- -
- Similar References:
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Last Update:
2020-07-29
