WIT Press

Non-stationary Random Seismic Response Solved Using Generalised Correlation Method

Price

Free (open access)

Paper DOI

10.2495/ERES960221

Volume

23

Pages

10

Published

1996

Size

843 kb

Author(s)

J. Naprstek & O. Fischer

Abstract

The paper presents a further continuation of the authors' effort to solve the problem of seimsic response of large structures, taking into account that the seismic excitation is not synchronous in all the supports. The excitation is considered as non-stationary random process, the structure as a discretised system which can be solved by FEM, with non-proportional damping. The approach of stochastic mechanics is applied, using mostly the correlation procedure, as results also the stochastic description of the response, viz. its mean values and dispersals (RMS), are obtained. 1 Introduction Seismic excitation can be considered as a mixture of strongly nonstation- ary stochastic and deterministic processes, as a rule; in the case of large structures with dis

Keywords