Lifetime prediction of wind loaded mast and towers with respect to lateral and longitudinal wind spectrum

0384006 - ÚTAM 2013 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Pospíšil, Stanislav - Lahodný, J. - Janata, V. - Urushadze, Shota - Král, Radomil - Hračov, Stanislav
Lifetime prediction of wind loaded mast and towers with respect to lateral and longitudinal wind spectrum.
Engineering Mechanics 2012. Prague: ITAM AS CR, v. v. i., 2012 - (Náprstek, J.; Fischer, C.), s. 1041-1048. ISBN 978-80-86246-39-0.
[Engineering Mechanics 2012 /18./. Svratka (CZ), 14.05.2012-17.05.2012]
Grant CEP: GA ČR(CZ) GA103/09/0094; GA MPO(CZ) FR-TI3/654
Institucionální podpora: RVO:68378297
Klíčová slova: lifetime prediction * masts * towers * fatigue * wind
Kód oboru RIV: JM - Inženýrské stavitelství

The paper deals with a theoretical lifetime prediction of telecommunication towers, guyed masts and antenna’s cantilevers and comparison with the long-term measurements. A simple and practical calculation method is presented. The wind load is described taking into account the probability distribution function of the mean velocity and corresponding wind pressures. The dynamic response of structure caused by the turbulence uses wind models for both longitudinal and lateral direction. Structural response takes into account the contribution of more vibration modes. Based upon this knowledge, the number of cycles for certain time period together with the residual time life prediction of antennas cantilevers and cables was determined.
Trvalý link: http://hdl.handle.net/11104/0213773