Preliminary results of ground-motion characteristics
The preliminary results are presented herein for the engineering applications of the characteristics of the ground motion induced by the May 20, 2012, Emilia earthquake. Shake maps are computed to provide estimates of the spatial distribution of the induced ground motion. The signals recorded at the...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2012-10-01
|
| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6121 |
| _version_ | 1819170981556518912 |
|---|---|
| author | Francesca Bozzoni Carlo Giovanni Lai Laura Scandella |
| author_facet | Francesca Bozzoni Carlo Giovanni Lai Laura Scandella |
| author_sort | Francesca Bozzoni |
| collection | DOAJ |
| description | The preliminary results are presented herein for the engineering applications of the characteristics of the ground motion induced by the May 20, 2012, Emilia earthquake. Shake maps are computed to provide estimates of the spatial distribution of the induced ground motion. The signals recorded at the Mirandola (MRN) station, the closest to the epicenter, have been processed to obtain acceleration, velocity and displacement response spectra. Ground-motion parameters from the MRN recordings are compared with the corresponding estimates from recent ground-motion prediction equations, and with the spectra prescribed by the current Italian Building Code for different return periods. The records from the MRN station are used to plot the particle orbit (hodogram) described by the waveform. The availability of results from geotechnical field tests that were performed at a few sites in the Municipality of Mirandola prior to this earthquake of May 2012 has allowed preliminary assessment of the ground response. The amplification effects at Mirandola are estimated using fully stochastic site-response analyses. The seismic input comprises seven actual records that are compatible with the Italian code-based spectrum that refers to a 475-year return period. The computed acceleration response spectrum and the associated dispersion are compared to the spectra calculated from the recordings of the MRN station. Good agreement is obtained for periods up to 1 s, especially for the peak ground acceleration. For the other periods, the spectral acceleration of the MRN recordings exceeds that of the computed spectra.<br /> |
| first_indexed | 2024-12-22T19:44:02Z |
| format | Article |
| id | doaj.art-78db4d9023504b4aabaaa65fca5d7383 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-22T19:44:02Z |
| publishDate | 2012-10-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-78db4d9023504b4aabaaa65fca5d73832022-12-21T18:14:44ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2012-10-0155410.4401/ag-61215773Preliminary results of ground-motion characteristicsFrancesca Bozzoni0Carlo Giovanni Lai1Laura Scandella2European Centre for Training and Research in Earthquake Engineering (EUCENTRE), PaviaEuropean Centre for Training and Research in Earthquake Engineering (EUCENTRE), Pavia; Università di Pavia, Dipartimento di Ingegneria Civile ed Architettura, PaviaEuropean Centre for Training and Research in Earthquake Engineering (EUCENTRE), PaviaThe preliminary results are presented herein for the engineering applications of the characteristics of the ground motion induced by the May 20, 2012, Emilia earthquake. Shake maps are computed to provide estimates of the spatial distribution of the induced ground motion. The signals recorded at the Mirandola (MRN) station, the closest to the epicenter, have been processed to obtain acceleration, velocity and displacement response spectra. Ground-motion parameters from the MRN recordings are compared with the corresponding estimates from recent ground-motion prediction equations, and with the spectra prescribed by the current Italian Building Code for different return periods. The records from the MRN station are used to plot the particle orbit (hodogram) described by the waveform. The availability of results from geotechnical field tests that were performed at a few sites in the Municipality of Mirandola prior to this earthquake of May 2012 has allowed preliminary assessment of the ground response. The amplification effects at Mirandola are estimated using fully stochastic site-response analyses. The seismic input comprises seven actual records that are compatible with the Italian code-based spectrum that refers to a 475-year return period. The computed acceleration response spectrum and the associated dispersion are compared to the spectra calculated from the recordings of the MRN station. Good agreement is obtained for periods up to 1 s, especially for the peak ground acceleration. For the other periods, the spectral acceleration of the MRN recordings exceeds that of the computed spectra.<br />http://www.annalsofgeophysics.eu/index.php/annals/article/view/6121SeismologyGround motion |
| spellingShingle | Francesca Bozzoni Carlo Giovanni Lai Laura Scandella Preliminary results of ground-motion characteristics Annals of Geophysics Seismology Ground motion |
| title | Preliminary results of ground-motion characteristics |
| title_full | Preliminary results of ground-motion characteristics |
| title_fullStr | Preliminary results of ground-motion characteristics |
| title_full_unstemmed | Preliminary results of ground-motion characteristics |
| title_short | Preliminary results of ground-motion characteristics |
| title_sort | preliminary results of ground motion characteristics |
| topic | Seismology Ground motion |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6121 |
| work_keys_str_mv | AT francescabozzoni preliminaryresultsofgroundmotioncharacteristics AT carlogiovannilai preliminaryresultsofgroundmotioncharacteristics AT laurascandella preliminaryresultsofgroundmotioncharacteristics |