Abstract (EN):
This paper considers the issues relating to the modelling and design of a latticed wind tower 150 meters high. Then a comparative study of the response of a latticed wind tower is presented when subjected to natural winds with and without a TMD. The actions considered during this type of tower design were the wind actions, combined with the action of ice, and the seismic actions. The lattice tall tower geometry was defined by the authors interacting with the metallic company Metalogalva (Trofa, Portugal). The geometry was to satisfy the required characteristics for the tower to support a wind turbine. The metallic calculations were achieved with by iteratively using Autodesk Robot Structural Analysis Professional, with a program to calculate the wind actions. The latter program was developed by the authors. As expected with this type of tower, the actions that conditioned the design were the wind action combined with ice. A simplified method for quantifying the dynamic action on these structures is adopted, with the purpose of studying techniques for vibration control of the alongwind response in terms of displacements and accelerations. © Civil-Comp Press, 2013.
Language:
English
Type (Professor's evaluation):
Scientific