Mismatch of basic units as a parameter of estimating a deflected mode of power transmission lines (PTL)
A. A. Kudlay
Orenburg State University
Annotation: This article is devoted to an estimation of the reliability of PTL steel towers. Nowadays, a durability of the existing towers is mainly exhausted, but their replacement involves high material costs. According to the author’s observations, in most cases steel towers are in a good working condition and their service life can be prolonged. At the same time the author found out the presence of relative displacements of basic units of tetrahedral towers that cause (due to some static indeterminateness of the scheme) additional internal effects. The calculations done with the help of the program complexes have showed that in some cases under adverse weather conditions a loss of tower stability can take place despite full correspondences of towers to the project requirements. Corrections to the existing normative documents are suggested to be done.
Keywords: overhead power transmission lines, tower, a deflected mode, height difference, a heeling, mismatch of units.
Pages: 79-86.
Link for citation: Kudlay, A. A. Mismatch of basic units as a parameter of estimating a deflected mode of power transmission lines (PTL). – Text : electronic. – In: Metal Constructions. – 2007. – Vol. 13, N 2. – Р. 79-86. – URL: https://donnasa.ru/publish_house/journals/mk/2007-2/06_kudlaj.pdf (date of access: 03.07.2024). (in Russian)
Vol. 13, N 2 (2007)Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture