Author(s)

J. Naprstek & 0. Fischer

Abstract

A combined analytical - numerical method of solving to the nonstationary random response of large system excited by seismic movement J. Naprstek, 0. Fischer Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic Vysehradskd 49, 128 49 Praha 2, Czech Republic ABSTRACT so,FT ™y •"** *"*"" t° ^«mic movement has pduct of a'"tT '" *""• ™* ™*™°* ^ been defined „ a matrl f /, "**V»^P™«« *«"*** i» time and space modulated by tToi of th T *T*"*- ™* «**™ » b-ed on the decomposi- rpLat on rf h lT "^ " "'" "^"^ ^^"^1 and the subsequent separation of its deterministic component; the response results as a nonsta- " ** "" ™^»' ^ *^ structure. INTRODUCTION however, neglect entire, the random not take into account their variations during their propagation in the sub- base from one part of the foundations to another, being based merely on the spectral curve of excitation. Thus the loa

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