Lifetime prediction of towers with respect to lateral and longitudinal wind load

0431145 - ÚTAM 2015 RIV ES eng J - Journal Article
Pospíšil, Stanislav - Hračov, Stanislav - Lahodný, J. - Janata, V. - Urushadze, Shota
Lifetime prediction of towers with respect to lateral and longitudinal wind load.
Journal of the International Association for Shell and Spatial Structures. Roč. 55, č. 2 (2014), s. 117-126. ISSN 1028-365X
R&D Projects: GA MPO(CZ) FR-TI3/654; GA ČR(CZ) GA103/09/0094; GA ČR(CZ) GP13-41574P
Institutional support: RVO:68378297
Keywords : lifetime prediction * spectrum * towers * wind load * fatigue
Subject RIV: JM - Building Engineering
http://www.iass-structures.org/index.cfm/journal.article?aID=702

The paper deals with the theoretical lifetime prediction of telecommunication towers and antenna’s cantilevers and the comparison with the measurements and numerical solution. A relatively 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 mean mechanical stresses. 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, measured or calculated if the structure is not accessible for any reason. Based upon this knowledge, the number of cycles for certain time period together with the residual life prediction of structure can be determined.
Permanent Link: http://hdl.handle.net/11104/0235761