Ground-motion hazard values for Northern Algeria

This study examines distinctive features of ground motion parameters in northern Algeria. An initial computation of seismic hazard in terms of horizontal peak ground acceleration (PGA) and spectral acceleration (SA) at different periods, damped at 5%, is carried out for three different types of soil...

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Detalles Bibliográficos
Autores: Hamdache, M., Peláez, J.A., Talbi, A., Mobarki, M., López Casado, C.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Universidad de Jaén
Repositorio:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/6900
Acceso en línea:https://doi.org/10.1007/s00024-011-0333-z
https://hdl.handle.net/10953/6900
Access Level:acceso abierto
Palabra clave:Seismic hazard
Uniform hazard spectra
Elastic design spectra
Spectral acceleration
Peak ground acceleration
55
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spelling Ground-motion hazard values for Northern AlgeriaHamdache, M.Peláez, J.A.Talbi, A.Mobarki, M.López Casado, C.Seismic hazardUniform hazard spectraElastic design spectraSpectral accelerationPeak ground acceleration55This study examines distinctive features of ground motion parameters in northern Algeria. An initial computation of seismic hazard in terms of horizontal peak ground acceleration (PGA) and spectral acceleration (SA) at different periods, damped at 5%, is carried out for three different types of soils (rock, stiff soils and soft soils) for return periods of 100 and 475 years. In addition, uniform hazard spectra (UHS) are computed for these two return periods at several locations in the region. Then, the UHS computed for different soil types are proposed as a starting point to define elastic design spectra for building-code purposes. We have used the well-known Newmark-Hall approach. As proposed in the most recent International Building Codes, the SA (0.2 s) value is used to establish the spectral region for lower periods (region controlled by acceleration), whereas the SA (1.0 s) value is used to establish the spectral region for intermediate periods (region controlled by velocity). We also obtained important relations, dependent on site condition, between SA (0.2 s), SA (1.0 s) or SAmax values, and the PGA, for both return periods of 100 and 475 years. Other relationships between PGA or SAmax values have also been derived for return periods of 100 and 475 years, in this case independent of site condition.This research was supported by the Algerian C.R.A.A.G. and the Spanish Seismic Hazard and Active Tectonics research group.Springer Nature202620262012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1007/s00024-011-0333-zhttps://hdl.handle.net/10953/6900reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaéninstname:Universidad de JaénInglésPure and Applied GeophysicsCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccessoai:ruja.ujaen.es:10953/69002026-06-24T12:41:07Z
dc.title.none.fl_str_mv Ground-motion hazard values for Northern Algeria
title Ground-motion hazard values for Northern Algeria
spellingShingle Ground-motion hazard values for Northern Algeria
Hamdache, M.
Seismic hazard
Uniform hazard spectra
Elastic design spectra
Spectral acceleration
Peak ground acceleration
55
title_short Ground-motion hazard values for Northern Algeria
title_full Ground-motion hazard values for Northern Algeria
title_fullStr Ground-motion hazard values for Northern Algeria
title_full_unstemmed Ground-motion hazard values for Northern Algeria
title_sort Ground-motion hazard values for Northern Algeria
dc.creator.none.fl_str_mv Hamdache, M.
Peláez, J.A.
Talbi, A.
Mobarki, M.
López Casado, C.
author Hamdache, M.
author_facet Hamdache, M.
Peláez, J.A.
Talbi, A.
Mobarki, M.
López Casado, C.
author_role author
author2 Peláez, J.A.
Talbi, A.
Mobarki, M.
López Casado, C.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Seismic hazard
Uniform hazard spectra
Elastic design spectra
Spectral acceleration
Peak ground acceleration
55
topic Seismic hazard
Uniform hazard spectra
Elastic design spectra
Spectral acceleration
Peak ground acceleration
55
description This study examines distinctive features of ground motion parameters in northern Algeria. An initial computation of seismic hazard in terms of horizontal peak ground acceleration (PGA) and spectral acceleration (SA) at different periods, damped at 5%, is carried out for three different types of soils (rock, stiff soils and soft soils) for return periods of 100 and 475 years. In addition, uniform hazard spectra (UHS) are computed for these two return periods at several locations in the region. Then, the UHS computed for different soil types are proposed as a starting point to define elastic design spectra for building-code purposes. We have used the well-known Newmark-Hall approach. As proposed in the most recent International Building Codes, the SA (0.2 s) value is used to establish the spectral region for lower periods (region controlled by acceleration), whereas the SA (1.0 s) value is used to establish the spectral region for intermediate periods (region controlled by velocity). We also obtained important relations, dependent on site condition, between SA (0.2 s), SA (1.0 s) or SAmax values, and the PGA, for both return periods of 100 and 475 years. Other relationships between PGA or SAmax values have also been derived for return periods of 100 and 475 years, in this case independent of site condition.
publishDate 2012
dc.date.none.fl_str_mv 2012
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1007/s00024-011-0333-z
https://hdl.handle.net/10953/6900
url https://doi.org/10.1007/s00024-011-0333-z
https://hdl.handle.net/10953/6900
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Pure and Applied Geophysics
dc.rights.none.fl_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
instname:Universidad de Jaén
instname_str Universidad de Jaén
reponame_str RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
collection RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
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