Abstract
In order to evaluate soil effects in the urban area of Barcelona, the Nakamura’s technique has been used to estimate the predominant periods of soils. Noise measurements for 195 sites were performed using a strong motion accelerograph and a velocimeter. In this work, the resulting preliminary map of predominant periods is presented. The obtained predominant periods are coherent with the geological and geotechnical features of the area. The analysis of the information has allowed the distinctions among several types of soil and underlying materials. A predominant period of about 0.06 s is evaluated for sites located over outcrop Paleozoic rock in the Tibidabo-Collserola Mountains. For sites consisting of material named tricycle, that is the most extensive and also the most heterogeneous zone, predominant period range from 0.10 s up to 2.0 s depending on the thickness of the surface materials and the kind and thickness of the underlying materials. In the Besós river two zones are observed: the riverside with periods between 0.50 s and 0.83 s and a second area with periods between 1.0 and 2.1 s. In the Llobregat river delta the obtained periods are quite homogeneous with values around 0.72 s. Other predominant periods are found in some tertiary rock outcrop.
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References
AFPS French Association for Earthquake Engineering (1995), Guidelines for Seismic Microzonation Studies. Paris.
Alfaro, A. (1997), Estimación de Períodos Predominantes de los Suelos de Barcelona a partir de Microtremors, M.Sc. Thesis, Technical University of Catalonia, Barcelona. España. Informe ICC No. GS091–97.
Barchiesi, A. (1997), Influencia de los Parámetros Geotécnicos sobre los Efectos Dinámicos Locales en Barcelona, M.Sc. Thesis, Technical University of Catalonia, Barcelona. España.
Candela, L. (1983), Cartografía Geotécnica Automática. Aplicación al Llano de Barcelona. Ph.D. Thesis, Universidad de Granada, Granada. España.
CEHOPU (1995), Puertos españoles en la Historia, Centro de estudios y experimentación de Obras Públicas, Ministerio de Obras Públicas, Transportes y Medio Ambiente, Madrid.
Cid, X. (1996), Estimació dels paràmetres Dinàmics dels òls,Procediment i Aplicació a Barcelona, M.Sc. Thesis, Technical University of Catalonia, Barcelona. España, Informe ICC No. GS084–96.
Cid, X. (1998), Zonación sismica de la ciudad de Barcelona basada en métodos de simulación numérica de efectos locales. Ph.D. Thesis, Universitat Politècnica de Cataluna. Barcelona.
Cid, X., Goula, X., Figueras, S., Susagna, T., Casas, A., and Roca, T. (2001), Seismic Zonation of Barcelona base on Preliminary Numerical Simulation of Site Effects, Pure appl. geophys., this issue.
Chavarria, L. (1997), Manuals de programes per a l’anàlisis freqüencial i temporal d’enregistrements sismics digitatats, Informe SGC no. GS93/97.
Fäh, D., Rüttener, E., Noack, T., and Kruspan, P. (1997), Microzonation of the city of Basel, J. Seismol. 1, 87–102.
Figueras, S., Schmidt, V., Susagna, T., Fleta, J., Goula, X., and Roca, A. (1995), Preliminary study of microzonation of Barcelona (Spain). In Proc. Fifth Internat. Conf. on Seismic Zonation,October 17–19, Nice, France, pp. 731–738.
Goula, X., Susagna, T., Figueras, S., Cid, J., Alfaro, A., and Barchiesi, A. (1998), Comparison of numerical simulation and microtremor measurement for the analysis of site effects in the city of Barcelona, Spain. In Proc. Eleven European Conf. on Earthquake Engineering, September, Paris.
Gutierrez, F. (1996), Evaluación de los Efectos de Sitio mediante el use de microtremors y Simulación 1D: Una aplicación a Microzonation Sismica, M.Sc. Thesis, Technical University of Catalonia, Barcelona. España, Informe ICC No. GS086–96.
Idriss, I. M., and Sun, J. I. (1992), Shake9l: A Computer Program for Conducting Equivalent Linear Seismic Response Analyses of Horizontally Layered Soil Deposits. Center for Geotechnical Modeling Departament of Civil and Environmental Engineering. University of California. Davis, California.
Kanai, K., and Tanaka, T. (1958), Self-levelling Vibrograph, Bull. Earthquake Res. Institute 36, 359–368.
Kanai, K., and Tanaka, T. (1961), On Microtremors VIII, Bull. Earthquake Res. Institute 39, 97–114.
Kennett, B. L., and Stewart, G. S. (1978), Seismic Waves in a Stratified Half-space, Geophys. J. Roy. Astr. Soc. 57, 557–583.
Lachet, C., and Bard, P. Y. (1994), Numerical and Theoretical Investigations on the Possibilities and Limitations of Nakamura’s Technique, J. Phys. Earth 42, 377–397.
Lázaro, R., Pinto, V., Rivero, L., Roca, J. L., and Casas, A. (1998), Gravity Anomaly Map of Barcelona as a Tool for Determining Structural Framework and Depth to Basement in Relation to Seismic Microzonation of an Urban Area, European Geophysical Society,XXIII General Assembly, Nice, Annales Geophysicae, supplement IV to Volume 16. p. C 1206.
López, L. (1996), Estimación de la amplificación de suelos a partir de registros de microtremors. Puesta a punto del método de Nakamura, M.Sc. Thesis, Technical University of Catalonia, Barcelona. España. Informe ICC No. GS081–96.
Nakamura, Y. (1989), A Method for Dynamic Characteristics Estimation of Surface Using Microtremor on the Ground Surface, Quarterly Report of Railway Tech Res. Inst. 30, 1.
Navarro, M., Sánchez, J., Alfaro, A., Pujades, L., and Canas, J. (1997), Primera rampart de densifacación, Microzonation Sismica de Barcelona, Departamento de Fisica. Universidad de Almería, Technical University of Catalonia, Barcelona, España.
Schmidt, V. (1994), Estudio Preliminar de la microzonación de Barcelona, M.Sc. Thesis, Technical University of Catalonia, Barcelona, España.
Teves-Costa, P., Costa Nunes, J. A., Senos, L., Oliveira Carlos, and Ramalhete, D. (1995), Predominant Frequencies of soil formations in the Town of Lisbon using microtremor measurements. In Proc. Fifth Internat. Conf. on Seismic Zonation, October 17–19, Nice, France, pp. 1683–1690.
Teves-Costa, P., and Senos, L. (1996), Natural Frequencies of the Alluvium Deposits in the Lower Tagus Valley, Paper 739, Eleven World Conf. on Earthquake Engin. ISBN 0 08 042822 3.
Ventayol, A., Albaiges, J., Cortal, J., Gallart, F., López, C., López, J., and Santaularia, J. eds. (1978), Mapa Geotécnico de Barcelona, Badalona, Esplugues, L’Hospitalet, Sant Adrià, Santa Coloma. Barcelona.
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Alfaro, A. et al. (2002). Preliminary Map of Soil’s Predominant Periods in Barcelona Using Microtremors. In: Roca, A., Oliveira, C. (eds) Earthquake Microzoning. Pageoph Topical Volumes. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8177-7_13
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DOI: https://doi.org/10.1007/978-3-0348-8177-7_13
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