Quantitative Identification of Near-Fault Pulse-Like Ground Motions Based on Energy

Research Article| October 01, 2013 Quantitative Identification of Near‐Fault Pulse‐Like Ground Motions Based on Energy Changhai Zhai; Changhai Zhai School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn Search for other works by this author on: GSW Google Scholar Zhiwang Chang; Zhiwang Chang School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn Search for other works by this author on: GSW Google Scholar Shuang Li; Shuang Li School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn Search for other works by this author on: GSW Google Scholar ZhiQiang Chen; ZhiQiang Chen Department of Civil and Mechanical Engineering, University of Missouri‐Kansas City, Kansas City, Missouri 64110‐2499chenzhiq@umkc.edu Search for other works by this author on: GSW Google Scholar Lili Xie Lili Xie School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinallxie@iem.ac.cn *Also at Institute of Engineering Mechanics, China Earthquake Administration, No. 29 Xuefu Road, Nangang District, Harbin 150080, P.R. China. Search for other works by this author on: GSW Google Scholar Author and Article Information Changhai Zhai School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn Zhiwang Chang School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn Shuang Li School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinazch-hit@hit.edu.cnzhiwangchang@gmail.comshuangli@hit.edu.cn ZhiQiang Chen Department of Civil and Mechanical Engineering, University of Missouri‐Kansas City, Kansas City, Missouri 64110‐2499chenzhiq@umkc.edu Lili Xie *Also at Institute of Engineering Mechanics, China Earthquake Administration, No. 29 Xuefu Road, Nangang District, Harbin 150080, P.R. China. School of Civil Engineering, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, P.R. Chinallxie@iem.ac.cn Publisher: Seismological Society of America First Online: 14 Jul 2017 Online ISSN: 1943-3573 Print ISSN: 0037-1106 Bulletin of the Seismological Society of America (2013) 103 (5): 2591–2603. https://doi.org/10.1785/0120120320 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Changhai Zhai, Zhiwang Chang, Shuang Li, ZhiQiang Chen, Lili Xie; Quantitative Identification of Near‐Fault Pulse‐Like Ground Motions Based on Energy. Bulletin of the Seismological Society of America 2013;; 103 (5): 2591–2603. doi: https://doi.org/10.1785/0120120320 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 Near‐fault pulse‐like ground motions have long been known to be capable of inducing significant seismic damages to the building structures. Reasonable classification of such ground motions has been a challenge to earthquake engineers. This study serves to propose an energy‐based approach that can be used to identify those ground motions with dominant pulses observed in the velocity time series; and time integral of the squared ground velocity is employed to represent the motion energy. For removing the influence of high‐frequency contents, the potential velocity pulse is first extracted with a pulse model. The starting and ending time points as well as period of the velocity pulse are subsequently determined by the peak‐point method. Records with peak ground velocities above 30 cm/s from a database containing more than 3600 recorded ground motions are selected and utilized to calibrate the final criterion. It is concluded that those ground motions whose dominant velocity pulses hold relative energy values of greater than 0.3 can be satisfactorily classified as pulse‐like. The proposed approach is further used to identify pulse‐like features in arbitrary orientations and pulse‐like ground motions possibly caused by forward‐directivity effects.Online Material: Tables identifying ground motions with near‐fault pulse‐like behavior. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.