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Seismic demand in medium‐ and long‐period structures
Author(s) -
Fajfar Peter,
Vidic Tomaž,
Fischinger Matej
Publication year - 1989
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290180805
Subject(s) - structural engineering , parametric statistics , range (aeronautics) , structural system , seismic analysis , geology , mathematics , engineering , statistics , aerospace engineering
Based on the results of an extensive parametric study of elastic and inelastic response of SDOF systems, in which the most important structural parameters were varied and ground motions of very different characteristics were taken into account, simple formulae for determining the seismic demand in SDOF systems with natural periods in the medium‐ and long‐period range are proposed. Seismic demand is expressed in terms of the mean values of maximum relative displacements and maximum input energy. These results can be used to provide rough estimates of structural behaviour when different damage models are applied. As well as this, the proposed formulae can be used to construct design spectra of the Newmark‐Hall type.