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Efficient and accurate method for calculating the stochastic seismic response of a nonproportionally damped structure / Wei Guo in Journal of structural engineering, Vol. 139 N° 3 (Mars 2013) 

Public ISBD [article]  in Journal of structural engineering > Vol. 139 N° 3 (Mars 2013) . - pp. 472–477 Titre : Efficient and accurate method for calculating the stochastic seismic response of a nonproportionally damped structure Type de document : texte imprimé Auteurs : Wei Guo, Auteur ; Zhi-wu Yu, Auteur ; Zhen Guo, Auteur Année de publication : 2013 Article en page(s) : pp. 472–477 Note générale : structural engineering Langues : Anglais (eng) Mots-clés : damping;  excitation;  seismic  effects;  stochastic  processes;  structural  response Résumé : In the case of nonproportionally damped structures, the forced decoupling method is often adopted in approximate analysis. However, it generally cannot satisfy the precision requirements for practical engineering. Taking this into account, methods to calculate the stochastic seismic response of nonproportionally damped structures are systematically studied in this paper. Based on the pseudoexcitation method, an efficient and accurate iteration method with the advantages of high computational efficiency and iteration convergence is also proposed. This new method is preferred for practical engineering because of real expressions. Finally, a numerical example is carried out to verify the properties and advantages of the proposed method. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000655 [article] Efficient and accurate method for calculating the stochastic seismic response of a nonproportionally damped structure [texte imprimé] / Wei Guo, Auteur ; Zhi-wu Yu, Auteur ; Zhen Guo, Auteur . - 2013 . - pp. 472–477. structural engineering Langues : Anglais (eng) in Journal of structural engineering > Vol. 139 N° 3 (Mars 2013) . - pp. 472–477 Mots-clés : damping;  excitation;  seismic  effects;  stochastic  processes;  structural  response Résumé : In the case of nonproportionally damped structures, the forced decoupling method is often adopted in approximate analysis. However, it generally cannot satisfy the precision requirements for practical engineering. Taking this into account, methods to calculate the stochastic seismic response of nonproportionally damped structures are systematically studied in this paper. Based on the pseudoexcitation method, an efficient and accurate iteration method with the advantages of high computational efficiency and iteration convergence is also proposed. This new method is preferred for practical engineering because of real expressions. Finally, a numerical example is carried out to verify the properties and advantages of the proposed method. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000655