2019/04/02 by Atefe Darzi, Mohammad R. Zolfaghari, Carlo Cauzzi +1
Engineering · Earth and Planetary Sciences · #Seismic Performance and Analysis #Seismic Waves and Analysis #Structural Health Monitoring Techniques
paper · doi:10.1785/0120180196
Research Article| April 02, 2019 An Empirical Ground‐Motion Model for Horizontal PGV, PGA, and 5% Damped Elastic Response Spectra (0.01–10 s) in Iran Atefe Darzi; Atefe Darzi aCivil Engineering Department, K N Toosi University of Technology, 470, Mirdamad Avenue West, P.O. Box 15875‐4416, Tehran 19697, Iran, [email protected]@catrisks.com Search for other works by this author on: GSW Google Scholar Mohammad R. Zolfaghari; Mohammad R. Zolfaghari Corresponding Author aCivil Engineering Department, K N Toosi University of Technology, 470, Mirdamad Avenue West, P.O. Box 15875‐4416, Tehran 19697, Iran, [email protected]@catrisks.com Search for other works by this author on: GSW Google Scholar Carlo Cauzzi; Carlo Cauzzi bSwiss Seismological Service (SED) at ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland, [email protected]@sed.ethz.ch Search for other works by this author on: GSW Google Scholar Donat Fäh Donat Fäh bSwiss Seismological Service (SED) at ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland, [email protected]@sed.ethz.ch Search for other works by this author on: GSW Google Scholar Author and Article Information Atefe Darzi aCivil Engineering Department, K N Toosi University of Technology, 470, Mirdamad Avenue West, P.O. Box 15875‐4416, Tehran 19697, Iran, [email protected]@catrisks.com Mohammad R. Zolfaghari Corresponding Author aCivil Engineering Department, K N Toosi University of Technology, 470, Mirdamad Avenue West, P.O. Box 15875‐4416, Tehran 19697, Iran, [email protected]@catrisks.com Carlo Cauzzi bSwiss Seismological Service (SED) at ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland, [email protected]@sed.ethz.ch Donat Fäh bSwiss Seismological Service (SED) at ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland, [email protected]@sed.ethz.ch Publisher: Seismological Society of America First Online: 02 Apr 2019 Online Issn: 1943-3573 Print Issn: 0037-1106 © Seismological Society of America Bulletin of the Seismological Society of America (2019) 109 (3): 1041–1057. https://doi.org/10.1785/0120180196 Article history First Online: 02 Apr 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Atefe Darzi, Mohammad R. Zolfaghari, Carlo Cauzzi, Donat Fäh; An Empirical Ground‐Motion Model for Horizontal PGV, PGA, and 5% Damped Elastic Response Spectra (0.01–10 s) in Iran. Bulletin of the Seismological Society of America 2019;; 109 (3): 1041–1057. doi: https://doi.org/10.1785/0120180196 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Presented herein is a new set of empirical models for prediction of horizontal peak ground velocity (PGV), peak ground acceleration (PGA), and 5% damped elastic response spectra in the 0.01–10 s vibration period range in Iran. The models are based on a carefully curated databank of Iranian strong ground motions composed of 1350 pairs of orthogonal horizontal acceleration time histories from 370 regional earthquakes with 4.5≤Mw≤7.4 and source‐to‐site distances up to 200 km. The adaptive wavelet denoising approach used for waveform processing in this study allows extending the range of oscillator periods for which predictions can be made. We investigated the possible regional dependency of strong ground motions from three different regions (Alborz–Azerbaijan–Kopeh Dagh, Zagros, and central Iran–Makran) of the Iranian plateau through analysis of variance. Our results show that data from these regions can be combined into a single database because only a few magnitude–distance intervals exhibit significant regional differences. Local site effects are taken into account using a site classification scheme based on VS30. The predictive models also include style‐of‐faulting (SoF) terms. Because of the paucity of data for normal‐faulting events, the applicability of the proposed attenuation models is limited to unspecified, strike‐slip, and reverse SoFs. We propose four models that employ point‐source (hypocentral and epicentral) and extended‐source (rupture and Joyner–Boore) distance metrics to enhance the flexibility of the prediction tool within the context of seismic hazard assessment studies. The results of between‐event and within‐event residuals show that the proposed new models are unbiased. We present a detailed comparison of our results with a selection of local, regional, and global predictive models developed by other authors. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.