Post-cracking Behabiour of a Wind Turbine Concrete Tower

Rodríguez, Javier; Marti Rodriguez, Joaquin y Martinez Cutillas, Francisco J. (2010). Post-cracking Behabiour of a Wind Turbine Concrete Tower. En: "SCC SIMULIA Customer Conference 2010", 25/05/2010 - 27/05/2010, Rhode Island, EEUU.


Título: Post-cracking Behabiour of a Wind Turbine Concrete Tower
  • Rodríguez, Javier
  • Marti Rodriguez, Joaquin
  • Martinez Cutillas, Francisco J.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: SCC SIMULIA Customer Conference 2010
Fechas del Evento: 25/05/2010 - 27/05/2010
Lugar del Evento: Rhode Island, EEUU
Título del Libro: Proceedings of SCC SIMULIA Customer Conference 2010
Fecha: 2010
Palabras Clave Informales: wind turbine, concrete, cracking, natural frequency
Escuela: E.T.S.I. Minas (UPM) [antigua denominación]
Departamento: Ingeniería de Materiales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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The paper deals with the dynamic performance of a simply reinforced concrete tower built using prefabricated elements. The main uncertainty of this strategy stems from the possible cracking of the concrete and its implications on the stiffness, natural frequency and dynamic amplification of the tower. In 2006 an 80 m high prototype was built, supporting a 1.5 MW wind generator, carefully instrumented and test loaded to 80% of its design capacity. The prototype and installed instrumentation remained in operation for 3 years. Detailed calculations were carried out of the cracking induced in the concrete and its effects on the natural frequency of the tower, as a function of wind speed and orientation; the results were compared with the monitoring data. It is concluded that numerical modelling with Abaqus allowed good predictions and interpretations of the observed response of the tower. Also, simply reinforced concrete is shown to be a good option for high towers; if the structure is well designed, the natural frequency will not migrate to a point where its proximity to the forcing frequency will lead to unacceptable levels of the dynamic amplification.

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ID de Registro: 8961
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Depositado por: Memoria Investigacion
Depositado el: 06 Oct 2011 11:14
Ultima Modificación: 20 Abr 2016 17:34
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