| Titre | Effects of soil behaviour modelling on the seismic response of representative soils in the Quebec City region |
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| Auteur | Nastev, M ; Lin,
L; Naumoski, N; Perret, D; Parent, M; Lamarche, L |
| Source | Proceedings of the Canadian Society for Civil Engineering (CSCE) 2008 Annual General Meeting and Conference/Comptes rendus du Congrès annuel 2008 de la SCGC; 2008, 10p. |
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| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20070633 |
| Réunion | Canadian Society for Civil Engineering (CSCE) 2008 Annual General Meeting and Conference; Quebec City; CA; juin 10-13, 2008 |
| Document | livre |
| Lang. | anglais |
| Media | papier |
| Province | Québec |
| SNRC | 21L/14 |
| Lat/Long OENS | -71.5000 -71.0000 47.0000 46.7500 |
| Sujets | sols; types pédologiques; études pédologiques; propriétés du sol; mécanique des sols; profils pédologiques; interpretations sismiques; sismicité; modèles sismiques; risque sismique; modèles sismiques;
établissement de modèles; pédologie; géophysique |
| Illustrations | graphiques; graphiques; tableaux |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 01 01 |
| Résumé | (disponible en anglais seulement)
This paper describes results from an investigation, which is a part of a comprehensive microzonation study of the Quebec City region. To investigate the effects
of soil behaviour modelling on the seismic response, the computer program SHAKE91 was used. Five typical soil profiles with total thickness ranging between 10 and 80 m were considered. The soil dynamic properties were defined using field measurements
and data reported in the literature. The horizontally to sub-horizontally layered soil deposits were modelled as one-dimensional soil column subjected to horizontal earthquake motion at the base. The seismic motions were defined using sets of
synthetic and recorded accelerograms. Given the uncertainties of the intensity of the seismic motions and their effects on the soil amplification, a number of analyses were conducted by applying various intensity levels. Compared to the scaled
accelerograms, the computed soil response is higher in the case of synthetic accelerograms with the exception of the period range between 0.03 and 0.1s. The site class D spectrum is generally more conservative than the spectral accelerations at soil
surface generated by both data sets. The synthetic accelerograms yield higher spectral values only beyond 0.1 ~ 0.2 s and in relatively narrow ranges centered mainly at the fundamental site frequencies of the soil profiles. |
| GEOSCAN ID | 225025 |
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