A review of load models for the prediction of footfall-induced vibration in structures

Fernández Martínez, Javier; Hermanns, Lutz Karl Heinz; Alarcón Álvarez, Enrique y Fraile de Lerma, Alberto (2013). A review of load models for the prediction of footfall-induced vibration in structures. En: "11th International Conference on Vibration Problems", 09/09/2013-12/09/2013, Lisboa (Portugal).

Descripción

Título: A review of load models for the prediction of footfall-induced vibration in structures
Autor/es:
  • Fernández Martínez, Javier
  • Hermanns, Lutz Karl Heinz
  • Alarcón Álvarez, Enrique
  • Fraile de Lerma, Alberto
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 11th International Conference on Vibration Problems
Fechas del Evento: 09/09/2013-12/09/2013
Lugar del Evento: Lisboa (Portugal)
Título del Libro: 11th International Conference on Vibration Problems
Fecha: 2013
Materias:
Palabras Clave Informales: Crowd-induced Dynamic Load, Dynamic Test, Experimental Identification,Modal Analysis
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Crowd induced dynamic loading in large structures, such as gymnasiums or stadium, is usually modelled as a series of harmonic loads which are defined in terms of their Fourier coefficients. Different values of these coefficients that were obtained from full scale measurements can be found in codes. Recently, an alternative has been proposed, based on random generation of load time histories that take into account phase lag among individuals inside the crowd. This paper presents the testing done on a structure designed to be a gymnasium. Two series of dynamic test were performed on the gym slab. For the first test an electrodynamic shaker was placed at several locations and during the second one people located inside a marked area bounced and jumped guided by different metronome rates. A finite element model (FEM) is presented and a comparison of numerically predicted and experimentally observed vibration modes and frequencies has been used to assess its validity. The second group of measurements will be compared with predictions made using the FEM model and three alternatives for crowd induced load modelling.

Más información

ID de Registro: 30789
Identificador DC: http://oa.upm.es/30789/
Identificador OAI: oai:oa.upm.es:30789
URL Oficial: http://www.icoev.org/index.php/icovp-2013
Depositado por: Biblioteca ETSI Industriales
Depositado el: 03 Sep 2014 10:48
Ultima Modificación: 22 Abr 2016 01:03
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