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

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

Description

Title: A review of load models for the prediction of footfall-induced vibration in structures
Author/s:
  • Fernández Martínez, Javier
  • Hermanns, Lutz Karl Heinz
  • Alarcón Álvarez, Enrique
  • Fraile de Lerma, Alberto
Item Type: Presentation at Congress or Conference (Article)
Event Title: 11th International Conference on Vibration Problems
Event Dates: 09/09/2013-12/09/2013
Event Location: Lisboa (Portugal)
Title of Book: 11th International Conference on Vibration Problems
Date: 2013
Subjects:
Freetext Keywords: Crowd-induced Dynamic Load, Dynamic Test, Experimental Identification,Modal Analysis
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 30789
DC Identifier: http://oa.upm.es/30789/
OAI Identifier: oai:oa.upm.es:30789
Official URL: http://www.icoev.org/index.php/icovp-2013
Deposited by: Biblioteca ETSI Industriales
Deposited on: 03 Sep 2014 10:48
Last Modified: 22 Apr 2016 01:03
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