Details
| Original language | English |
|---|---|
| Article number | 101606 |
| Journal | Ain Shams Engineering Journal |
| Volume | 13 |
| Issue number | 3 |
| Early online date | 16 Oct 2021 |
| Publication status | Published - May 2022 |
Abstract
To satisfy the requirements of performance-based design methods for a large number of earthquake signals that contain a series of variable random variables, the generation of artificial seismic ground motion is necessary. To statistics amplitudes’ instability in the time domain, 500 recorded earthquakes have been divided into 5 groups by D5-95 durations and are statistically analyzed. For each D5-95 earthquake group, its standard time-domain enhancement-attenuation process is described as the edge envelope curve, and the representativeness of the curve is valued as the coverage rate. Comparing response spectrums before and after multiplying with edge envelopes functions of 6000 initial artificial earthquakes that are generated by inverse Fourier process with different intensities and D5-95 durations, their spectrums are well-matched. This newly proposed method is proven to be able to generate artificial earthquake signals that resemble natural amplitudes and time-domain characteristics and maintain the desired frequency domain response.
Keywords
- Artificial Time History, Earthquake Ground Acceleration, Time-Domain Peak Reduction
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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In: Ain Shams Engineering Journal, Vol. 13, No. 3, 101606, 05.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Method to generate artificial earthquake accelerations with time domain enhancement and attenuation characteristics
AU - Zhang, He
AU - Bittner, Marius
AU - Beer, Michael
N1 - Funding Information: This research was funded by Junior Researcher Grant Yangzhou University (Grant No. 137012122), and this study was financially supported by the China Scholarship Council (CSC) (Grant No. 20180670149). Natural earthquake data were downloaded from PEER Strong Ground Motion Databases ( https://peer.berkeley.edu/peer-strong-ground-motion-databases ). And the calculation is supported by Institute for Risk and Reliability, University Hannover.
PY - 2022/5
Y1 - 2022/5
N2 - To satisfy the requirements of performance-based design methods for a large number of earthquake signals that contain a series of variable random variables, the generation of artificial seismic ground motion is necessary. To statistics amplitudes’ instability in the time domain, 500 recorded earthquakes have been divided into 5 groups by D5-95 durations and are statistically analyzed. For each D5-95 earthquake group, its standard time-domain enhancement-attenuation process is described as the edge envelope curve, and the representativeness of the curve is valued as the coverage rate. Comparing response spectrums before and after multiplying with edge envelopes functions of 6000 initial artificial earthquakes that are generated by inverse Fourier process with different intensities and D5-95 durations, their spectrums are well-matched. This newly proposed method is proven to be able to generate artificial earthquake signals that resemble natural amplitudes and time-domain characteristics and maintain the desired frequency domain response.
AB - To satisfy the requirements of performance-based design methods for a large number of earthquake signals that contain a series of variable random variables, the generation of artificial seismic ground motion is necessary. To statistics amplitudes’ instability in the time domain, 500 recorded earthquakes have been divided into 5 groups by D5-95 durations and are statistically analyzed. For each D5-95 earthquake group, its standard time-domain enhancement-attenuation process is described as the edge envelope curve, and the representativeness of the curve is valued as the coverage rate. Comparing response spectrums before and after multiplying with edge envelopes functions of 6000 initial artificial earthquakes that are generated by inverse Fourier process with different intensities and D5-95 durations, their spectrums are well-matched. This newly proposed method is proven to be able to generate artificial earthquake signals that resemble natural amplitudes and time-domain characteristics and maintain the desired frequency domain response.
KW - Artificial Time History
KW - Earthquake Ground Acceleration
KW - Time-Domain Peak Reduction
UR - http://www.scopus.com/inward/record.url?scp=85117407370&partnerID=8YFLogxK
U2 - 10.1016/j.asej.2021.09.031
DO - 10.1016/j.asej.2021.09.031
M3 - Article
AN - SCOPUS:85117407370
VL - 13
JO - Ain Shams Engineering Journal
JF - Ain Shams Engineering Journal
SN - 2090-4479
IS - 3
M1 - 101606
ER -