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Superposition of Modal Responses in Spectral Analysis

Tanja Kalaman
Vladimir Sigmund

Puni tekst: hrvatski pdf 368 Kb

str. 17-24

preuzimanja: 5.039



Modal analysis is a standard method for a structure earthquake response analysis. The combination of various response modes is not standardized and there are three most often used methods of modal superposition: ABS, SRSS and CQC. Exact results of seismic response are obtained by time history analysis, we using a set of representative earthquakes. In order to evaluate the validity of different superposition methods, were defined building models that cover a broad range of interest regarding stiffness (and its distribution along the height and in floor) and their response time histories were analyzed for a set of ground motions that represent soft and stiff ground. The suggestions for everyday use were outlined.

Ključne riječi

spectral analysis, time history, model structures, response combination rules

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Podaci na drugim jezicima: hrvatski

Posjeta: 6.187 *