Application of the Empirical Mode Decomposition-Hilbert Spectrum Method to Identify Near-Fault Ground-Motion Characteristics and Structural Responses

Research Article| October 01, 2001 Application of the Empirical Mode Decomposition-Hilbert Spectrum Method to Identify Near-Fault Ground-Motion Characteristics and Structural Responses Chin-Hsiung Loh; Chin-Hsiung Loh Search for other works by this author on: GSW Google Scholar Tsu-Chiu Wu; Tsu-Chiu Wu Search for other works by this author on: GSW Google Scholar Norden E. Huang Norden E. Huang Search for other works by this author on: GSW Google Scholar Author and Article Information Chin-Hsiung Loh Tsu-Chiu Wu Norden E. Huang Publisher: Seismological Society of America First Online: 03 Mar 2017 Online ISSN: 1943-3573 Print ISSN: 0037-1106 Copyright © 2001 by the Seismological Society of America Bulletin of the Seismological Society of America (2001) 91 (5): 1339–1357. https://doi.org/10.1785/0120000715 Article history First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Chin-Hsiung Loh, Tsu-Chiu Wu, Norden E. Huang; Application of the Empirical Mode Decomposition-Hilbert Spectrum Method to Identify Near-Fault Ground-Motion Characteristics and Structural Responses. Bulletin of the Seismological Society of America 2001;; 91 (5): 1339–1357. doi: https://doi.org/10.1785/0120000715 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 In this article, the empirical mode decomposition method combined with the Hilbert spectrum method (EMD + HHT) is used to analyze the free-field ground motion and to estimate the global structural property of building and bridge structure through the measurement of seismic response data. The EMD + HHT method provides a powerful tool for signal processing to identify nonlinear and nonstationary data. Based on the decomposed ground-motion signal, the absolute input energy of each decomposed wave was studied (the fling step pulselike wave can be separated from the recorded near-fault ground motion). Through application of the EMD + HHT method to building and bridge seismic response data, the time-varying system natural frequency and damping ratio can also be estimated. Damage identification from seismic response data of buildings and bridges, particularly from the Chi-Chi earthquake data, is also described. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.