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Sensitivity of Structural Response to Wind Turbulence Characteristics
Denoël, Vincent
2011In Marcuso, Russell J. (Ed.) Turbulence: Theory, Types and Simulation - Series: Physics Research and Technology
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Keywords :
non Gaussian; Bispectrum; correlation
Abstract :
[en] Civil engineering structures that are built in the atmospheric boundary layer have to be designed according to the gusty winds they are likely to withstand during their lifetime. Traditionally statistical characteristics of the wind turbulence -as standard deviation of and correlation between turbulence components, frequency content, etc. - are provided to structural engineers by meteorologists. The first dialogue between these two communities dates back to 1960's when they agreed on a list of necessary statistical characteristics of turbulence that need to be observed and measured to feed the structural models available at that time. In the framework of advanced wind loading models developed recently, it turns out that this basic list of statistical characteristics of turbulence is no longer sufficient. In this chapter, we point out some quantities that would need to be measured and others that are already measured but require a more precise estimation. This need is justified by analyzing the sensitivity, to these quantities, of the structural response to an advanced Wind loading model. After having introduced the need for advanced modeling of the wind loading, and eventually thus of the wind turbulence, a nonlinear non-Gaussian quasi-steady loading model is presented. Then the model is rigorously analyzed with cumbersome mathematics and statistics, with the permanent background aim at estimation of the influence of the turbulence properties. Final results are however presented in a concise way in order to pave the way for the future dialogue between engineers and meteorologists, and so build up the advanced design procedures that will presumably be used during the coming decades.
Disciplines :
Civil engineering
Author, co-author :
Denoël, Vincent  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse sous actions aléatoires en génie civil
Language :
English
Title :
Sensitivity of Structural Response to Wind Turbulence Characteristics
Publication date :
2011
Main work title :
Turbulence: Theory, Types and Simulation - Series: Physics Research and Technology
Editor :
Marcuso, Russell J.
Publisher :
Nova Publishers
ISBN/EAN :
978-1-61761-735-5
Pages :
32
Peer reviewed :
Peer reviewed
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