The non-stationary cross-correlation coefficients in the seismic analysis of MDOF structural systems

✍ Scribed by Giovanni Falsone; Fabio Neri

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 110 KB
• Volume: 32
• Category: Article
• ISSN: 0098-8847
• DOI: 10.1002/eqe.319

✦ Synopsis

Abstract

A method concerning the evaluation, in a very compact form, of the non‐stationary modal cross‐correlation coefficients of MDOF structural systems subjected to seismic excitations is presented. It is available both in the case when the excitation is considered as a white‐noise process and when it is considered as a filtered process. The evaluation of these coefficients is required when a transient seismic analysis is performed by the use of the modal response spectrum approach. This is necessary when the strong‐motion phase of the earthquake is significantly short with respect to the fundamental period of the structure. Copyright © 2003 John Wiley & Sons, Ltd.