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2006, № 9



Mironov S.V., Kudlay A.A. ABOUT DEPENDENCE OF STEEL TOWERS RELIABILITY OF ELECTRICITY TRANSMISSION LINES FROM ERROR OF ITS REFERENCE NODES VERTICAL MARKS This article is devoted to the appraisal of steel towers reliability of electricity transmission lines. At the present time temporal resource of existing towers is depleted at many cases, but its changing connects with large financial expense. According to the authors’ observations steel towers are able to work at many cases and term of its service can be prolonged. At the same time the authors reveal the presence of relative displacement of four-legged bearings leading (on account of statical indeterminable of scheme) to additional internal force birth. Calculations made with using program complexes Lira and SCAD show that in some cases bearings steadiness loss can be possible at adverse weather conditions, notwithstanding on complete bearings accordance to the project demands. The authors suggest making corrections at existing normative documents.

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Authors: Mironov S.V., Kudlay A.A.

Year: 2006


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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