Refinement of a dynamic factor of dead-end support of optl 110 kv for action of the pulse component of wind loading
A. V. Tanasoglo
Donbas National Academy of Civil Engineering and Architecture
Annotation: There is analyzed dynamic calculation of a metal dead-end support of overhead power transmission lines (OPTL) 110 kV for action of the pulse component of wind loading. The purpose of dynamic calculation of metal supports of OPTL for wind influence is the analysis of the established fluctuations of a support in a wind flow. Thus characteristics of central displacements, internal forces and stresses are defined in finite elements (lattices and belts) separately from action of average and pulse components of wind loading. There is given a design procedure and design dynamic data of a rod of equivalent stiffness. An attention is given to the basic problems which can occur during the transition from a support spatial pattern model to the rod of equal cross section. There are considered a number of problems connected with a refined specification of a dynamic factor. On the base of design and extension of the results there was thoroughly compared received dynamic factors on sections of a dead-end support with dynamic factors of a rod of equivalent stiffness for action of the pulse component of wind loading.
Keywords: overhead power transmission line, metal support, dynamic factor, spatial model, rod of equivalent stiffness.
Pages: 135-145.
Link for citation: Tanasoglo, A. V. Refinement of a dynamic factor of dead-end support of optl 110 kv for action of the pulse component of wind loading. – Text : electronic. – In: Metal Constructions. – 2012. – Том 18, № 2. – Р. 135-145. – URL: https://donnasa.ru/publish_house/journals/mk/2012-2/05_tanasoglo.pdf (date of access: 03.07.2024). (in Russian)
Том 18, № 2 (2012)Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture