| Titre | Seismic motions compatible with the NBCC 2005 Uniform Hazard Spectrum for Quebec City |
| |
| Auteur | Nastev, M ; Lin,
L; Naumoski, N |
| Source | Comptes rendus du congrès annuel 2008 de la SCGC
/Proceedings of the CSCE 2008 Annual Conference; 2008, 10p. |
| Image |  |
| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20070631 |
| Réunion | Congrès annuel 2008 de la SCGC / CSCE 2008 Annual Conference; Québec; CA; juin 10-13, 2008 |
| Document | livre |
| Lang. | anglais |
| Media | papier |
| Province | Québec |
| SNRC | 21L/14; 21M; 21N; 22D |
| Région | Charlevoix; Laurentides; Saguenay |
| Lat/Long OENS | -72.0000 -68.5000 48.5000 46.7500 |
| Sujets | risque sismique; réseau sismique; séismologie; séismologie des secousses fortes; géophysique |
| Illustrations | histogrammes; cartes de localisation; graphiques |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 01 01 |
| Résumé | (disponible en anglais seulement)
The Geological Survey of Canada is carrying out a microzonation study of Quebec City as a part of comprehensive geohazards assessment project in Eastern Canada.
One of the major objectives of the study is to determine the amplitude and frequency characteristics of the seismic motions at the ground surface. This paper discusses the characteristics of strong seismic motions recorded within a radius of about
150 km from Quebec City, and the applied approach for the selection of representative seismic motions compatible with the uniform hazard spectrum for soil class B as specified in the National Building Code of Canada. In total 102 horizontal and 51
vertical seismic records obtained during 12 earthquakes were used. The considered parameters and the characteristics of the motions include: peak ground motions, frequency content, strong motion duration, acceleration response spectra, and
relationships between horizontal and vertical acceleration response spectra. Two sets of representative seismic motions were then selected. The first set of 10 records consists of recorded motions scaled such that their 5% damped acceleration
response spectra envelope the uniform hazard spectrum within the frequency range of interest for the microzonation study. The second set consists of acceleration time histories of seismic motions that match closely the uniform hazard spectrum. These
were obtained by modifying the records of the first set. Both data sets will be used in the next steps of the study for the analysis of the dynamic response of typical surficial sediment profiles in the study area. |
| GEOSCAN ID | 225023 |
|
|