Theoretical and experimental study of coupled rocking-swivelling model of guyed mast shaft

0456253 - ÚTAM 2016 RIV FR eng J - Journal Article
Urushadze, Shota - Pirner, Miroš - Fischer, Ondřej
Theoretical and experimental study of coupled rocking-swivelling model of guyed mast shaft.
MATEC Web of Conferences. Roč. 24, October (2015), s. 09006. ISSN 2261-236X.
[International Conference on Experimental Vibration Analysis for Civil Engineering Structures EVACES’15, /6./. Dübendorf, 19.10.2015-21.10.2015]
R&D Projects: GA ČR(CZ) GC13-34405J
Institutional support: RVO:68378297
Keywords : guyed mast shaft * swivelling * wind-excited vibration
Subject RIV: JM - Building Engineering
https://doi.org/10.1051/matecconf/20152409006

Systematic monitoring of rotational vibration (both torsion and swivelling) of guyed mast shafts has been performed in ITAM since 2005. The occurrence of this phenomenon is conditioned by the fact that the guy ropes are attached to the construction of the shaft, i.e. out of its axis. The simple static calculation model serves for making the proof of the occurrence of the torsional moment, affecting the shaft, which is guyed by three ropes. The exact theoretical solution of the real phenomenon assumes the introduction of dynamics of guy ropes, which vibrate in 3D shapes during the shaft’s movement along the orbit and it´s torsion (swivelling).
Permanent Link: http://hdl.handle.net/11104/0256846