Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6654
DC Field | Value | Language |
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dc.contributor.authorall | Massa, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia | en |
dc.contributor.authorall | Marzorati, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia | en |
dc.contributor.authorall | Ladina, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia | en |
dc.contributor.authorall | Lovati, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia | en |
dc.date.accessioned | 2011-01-14T08:18:21Z | en |
dc.date.available | 2011-01-14T08:18:21Z | en |
dc.date.issued | 2010-06 | en |
dc.identifier.uri | http://hdl.handle.net/2122/6654 | en |
dc.description.abstract | In this work we present and discuss the results of ambient seismic noise analyses computed at four sites where seismic stations, managed by the INGV (Italian Institute for Geophysics and Vulcanology) and the DPC (Italian Department of Civil Protection), are installed inside buildings. The experiments were performed considering different types of installation: sensor located at the bottom of a school, directly installed on rock (case 1); sensor located at the bottom of a medieval fortress, built on an isolate hill, directly installed on rock (case 2); sensor installed on the foundations of a medieval fortress, built on an isolate hill (case 3); sensor installed on the foundations of a school, built on alluvial deposits (case 4). Since recent works proposed the use of spectral ratio techniques to study the dynamic characterization of buildings, ambient seismic-noise measurements were performed for each site close to the stations (at the base of the structures), at the top of the structures and outside the buildings. In order to check the source of vibrations both horizontal to vertical spectral ratio (HVNR) and standard spectral ratio (SSR) techniques were applied. For all stations the results from ambient seismic noise were compared to those obtained from earthquakes (HVSR). In order to detect preferential directions of amplification, for each site average HVNRs and HVSRs were computed considering one azimuth for each set of 5°. We obtain different results for different types of installation: in cases 1 and 2, where the sensors are directly installed on rock, the vibrations of the structure do not affect the noise measures performed close to the stations, which show flat HVNR in the whole frequency range: in both cases the eigenfrequency of the building is given by the HVNR calculated from the measures performed at the top of the structure. In cases 3 and 4, where the sensors are installed on the foundations of the considered structures, both the amplification peaks between 5 and 9 Hz (case 3) and between 5.5 and 7 Hz (case 4) include the contribution of the free oscillations of the buildings. In particular, in case 4, HVNRs performed outside building highlight possible soil–structure resonance effects in case of an earthquake. | en |
dc.language.iso | English | en |
dc.publisher.name | Springer | en |
dc.relation.ispartof | Bulletin of Earthquake Engineering | en |
dc.relation.ispartofseries | 3/8(2010) | en |
dc.subject | site effect | en |
dc.subject | soil-structure interaction | en |
dc.subject | spectral ratio techniques | en |
dc.title | Urban seismic stations: soil–structure interaction assessment by spectral ratio analyses | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 723-738 | en |
dc.identifier.URL | http://www.springerlink.com/content/l710101122186581/ | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques | en |
dc.identifier.doi | 10.1007/s10518-009-9138-1 | en |
dc.relation.references | Gallipoli M. R., Mucciarelli M., Castro R. R., Monachesi G. And Contri P. (2003). Structure, soil structure response and effects on damage based on observations of horizontal to vertical spectral ratio of microtremors, Soil Dyn. Earthquake Eng., 24, 487-495. Gruppo di lavoro CPTI (2004). Catalogo Parametrico dei Terremoti Italiani, versione 2004 (CPTI04), INGV, Bologna (url: http://emidius.mi.ingv.it/CPTI04/). Gruppo di lavoro (2004). Redazione della mappa di pericolosità sismica prevista dall’ordinanza PCM 3274 del 20 Marzo 2003, Rapporto conclusivo per il Dipartimento della Protezione Civile, INGV, Milano-Roma, 65. Ivanovic S. S., Trifunac M. D. and Todorovska M. I. (2000). Ambient vibration tests on structures – a review, Bull. Ind. Soc. Earthq. Technol., 37, 165-197. Konno, K., and T. Ohmachi (1998). Ground-motion characteristics estimated from spectral ratio between horizontal and vertical components of microtremors, Bull. Seism. Soc. Am., 88, 228-241. Lermo J. and Chavez-Garcia F. (1993). Site effect evaluation using spectral ratio with only one station, Bull. Seism. Soc. Am., 83, 5, 1574-1594. Marzorati S. and Bindi D. (2006). Ambient noise levels in North-central Italy, Geochem. Geophys. Geosyst., 7, Q09010. Massa M., Lovati S., Di Giacomo D., Marzorati S., D’Alema E. and Augliera P. (2008). A microtremor survey in the area shocked by the Ml 5.2 Salò earthquake (North Italy): en empirical approach to determine the effects of ground motions, J. Earthq. Eng., in press. Mucciarelli M. and Gallipoli M. R. (2006). Estimete of frequency and damping for large sets of buildings in dense urban areas, First European Conference on Earthquake Engineering and Seismology, 3-8 September 2006, Geneve, Switzerland. Mucciarelli M., Masi A., Gallipoli M. R., Harabaglia P., Vona M., Ponzo F. And Dolce M. (2004). Analysis of RC building dynamic response and soil building resonance based on data recorded during a damaging earthquake (Molise, Italy, 2002), Bull. Seism. Soc. Am., 94, 5, 1943-1953. Mucciarelli M., Gallipoli M. R. And Arcieri M. (2003). The stability of horizontal to vertical spectral ratio by triggered noise and earthquake recordings, Bull. Seism. Soc. Am., 93, 1407-1412. Mucciarelli, M, and Monachesi G. (1999). The Bovec (Slovenia) earthquake, April 1998: preliminary quantitative association among damage, ground motion amplification and building frequencies, J. Earthq. Eng., 3, 317-327. Mucciarelli, M, and Monachesi G. (1998). A quick survey of local amplifications and their correlation with damage observed during the Umbro-Marchesan (Italy) earthquake of September 26, 1997, J. Earthq. Eng., 2, 325-337. Nakamura, Y. (1989). A method for dynamic characteristics estimations of subsurface using microtremors on the ground surface, Quarterly Rept. RTRI Japan 30, 25-33. Parolai S., Facke A., Richwalski S. M. and Stempniewski L. (2005). Assessing the vibrational frequencies of the Holweide Hospital in the city of Cologne (Germany) by means of ambient seismic noise analysis and FE modelling, Natural Hazard, 34, 217-230. Rautian T. G. and Khalturin V. I. (1978). The use of the coda for determination of the earthquake source spectrum, Bull. Seism. Soc. Am., 68, 923-948 pp. Trifunac M. D. and Todorovska M.I. (2000). Long period microtremors, microseisms and earthquake damage: Northridge, CA, earthquake of 17 January 1994, Soil Dyn. Earthquake Eng., 19, 253-267. Wolf J. P. and Song C. (2002). Some cornerstone of dynamic soil structure interaction, Eng. Struct., 24, 13-28. | en |
dc.description.obiettivoSpecifico | 4.1. Metodologie sismologiche per l'ingegneria sismica | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Massa, M. | en |
dc.contributor.author | Marzorati, S. | en |
dc.contributor.author | Ladina, C. | en |
dc.contributor.author | Lovati, S. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | - |
crisitem.author.orcid | 0000-0003-0696-2035 | - |
crisitem.author.orcid | 0000-0002-5803-4882 | - |
crisitem.author.orcid | 0000-0002-8157-1133 | - |
crisitem.author.orcid | 0000-0002-2046-2152 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | |
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Massa_et_al_Revised.pdf | Main article | 1.35 MB | Adobe PDF | View/Open |
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