Fling-Step Recovering from Near-Source Waveforms Database
We present an upgraded processing scheme (eBASCO, extended BASeline COrrection) to remove the baseline of strong-motion records by means of a piece-wise linear detrending of the velocity time history. Differently from standard processing schemes, eBASCO does not apply any filtering to remove the low...
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doaj-bec92a9da6fb4eb189a749f7f411fa6b2021-02-05T00:04:46ZengMDPI AGGeosciences2076-32632021-02-0111676710.3390/geosciences11020067Fling-Step Recovering from Near-Source Waveforms DatabaseErika Schiappapietra0Chiara Felicetta1Maria D’Amico2Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UKIstituto Nazionale di Geofisica e Vulcanologia, 20133 Milan, ItalyIstituto Nazionale di Geofisica e Vulcanologia, 20133 Milan, ItalyWe present an upgraded processing scheme (eBASCO, extended BASeline COrrection) to remove the baseline of strong-motion records by means of a piece-wise linear detrending of the velocity time history. Differently from standard processing schemes, eBASCO does not apply any filtering to remove the low-frequency content of the signal. This approach preserves both the long-period near-source ground-motion, featured by one-side pulse in the velocity trace, and the offset at the end of the displacement trace (fling-step). The software is suitable for a rapid identification of fling-containing waveforms within large strong-motion datasets. The ground displacement of about 600 three-component near-source waveforms has been recovered with the aim of (1) extensively testing the eBASCO capability to capture the long-period content of near-source records, and (2) compiling a qualified strong-motion flat-file useful to calibrate attenuation models for peak ground displacement (PGD), 5% damped displacement response spectra (DS), and permanent displacement amplitude (PD). The results provide a more accurate estimate of ground motions that can be adopted for different engineering purposes, such as performance-based seismic design of structures.https://www.mdpi.com/2076-3263/11/2/67strong-motionnear-sourceearthquake waveformspermanent displacementfling-stepwaveforms processing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Erika Schiappapietra Chiara Felicetta Maria D’Amico |
spellingShingle |
Erika Schiappapietra Chiara Felicetta Maria D’Amico Fling-Step Recovering from Near-Source Waveforms Database Geosciences strong-motion near-source earthquake waveforms permanent displacement fling-step waveforms processing |
author_facet |
Erika Schiappapietra Chiara Felicetta Maria D’Amico |
author_sort |
Erika Schiappapietra |
title |
Fling-Step Recovering from Near-Source Waveforms Database |
title_short |
Fling-Step Recovering from Near-Source Waveforms Database |
title_full |
Fling-Step Recovering from Near-Source Waveforms Database |
title_fullStr |
Fling-Step Recovering from Near-Source Waveforms Database |
title_full_unstemmed |
Fling-Step Recovering from Near-Source Waveforms Database |
title_sort |
fling-step recovering from near-source waveforms database |
publisher |
MDPI AG |
series |
Geosciences |
issn |
2076-3263 |
publishDate |
2021-02-01 |
description |
We present an upgraded processing scheme (eBASCO, extended BASeline COrrection) to remove the baseline of strong-motion records by means of a piece-wise linear detrending of the velocity time history. Differently from standard processing schemes, eBASCO does not apply any filtering to remove the low-frequency content of the signal. This approach preserves both the long-period near-source ground-motion, featured by one-side pulse in the velocity trace, and the offset at the end of the displacement trace (fling-step). The software is suitable for a rapid identification of fling-containing waveforms within large strong-motion datasets. The ground displacement of about 600 three-component near-source waveforms has been recovered with the aim of (1) extensively testing the eBASCO capability to capture the long-period content of near-source records, and (2) compiling a qualified strong-motion flat-file useful to calibrate attenuation models for peak ground displacement (PGD), 5% damped displacement response spectra (DS), and permanent displacement amplitude (PD). The results provide a more accurate estimate of ground motions that can be adopted for different engineering purposes, such as performance-based seismic design of structures. |
topic |
strong-motion near-source earthquake waveforms permanent displacement fling-step waveforms processing |
url |
https://www.mdpi.com/2076-3263/11/2/67 |
work_keys_str_mv |
AT erikaschiappapietra flingsteprecoveringfromnearsourcewaveformsdatabase AT chiarafelicetta flingsteprecoveringfromnearsourcewaveformsdatabase AT mariadamico flingsteprecoveringfromnearsourcewaveformsdatabase |
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