An energy-frequency parameter for earthquake ground motion intensity measure

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

Externe Organisationen

  • Wuhan University
  • Kanto Gakuin University
  • The University of Liverpool
  • Tongji University
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)271-284
Seitenumfang14
FachzeitschriftEarthquake Engineering and Structural Dynamics
Jahrgang52
Ausgabenummer2
PublikationsstatusVeröffentlicht - 10 Jan. 2023

Abstract

A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on the Hilbert-Huang transform. To validate the effectiveness of the proposed IM, the correlation analysis between the engineering demand parameter (EDP) and energy-frequency parameter is performed using 1992 recorded ground motions, in which EDP is the maximum inter-storey drift of structures obtained by nonlinear time-history analysis. Results show that the energy-frequency parameter has a strong linear correlation with EDP at natural logarithm, and this correlation is applicable for various structural fundamental periods. We also verified that the lognormal cumulative distribution function can characterize the energy-frequency parameter-based fragility function, which can further facilitate the application of the parameter in seismic risk analysis. Besides, the strong correlation between the energy-frequency parameter and other IMs (such as PGA, PGV, PGD, CAV, (Formula presented.), (Formula presented.), and SI) potentially makes the proposed IM widely applicable in seismic risk analysis. Moreover, since the energy-frequency parameter depends only on the frequency-domain characteristics of the ground-motion signal, it may closely link to seismological theory and provide new insights into seismology engineering.

ASJC Scopus Sachgebiete

Zitieren

An energy-frequency parameter for earthquake ground motion intensity measure. / Chen, Guan; Yang, Jiashu; Liu, Yong et al.
in: Earthquake Engineering and Structural Dynamics, Jahrgang 52, Nr. 2, 10.01.2023, S. 271-284.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Chen G, Yang J, Liu Y, Kitahara T, Beer M. An energy-frequency parameter for earthquake ground motion intensity measure. Earthquake Engineering and Structural Dynamics. 2023 Jan 10;52(2):271-284. doi: 10.1002/eqe.3752
Chen, Guan ; Yang, Jiashu ; Liu, Yong et al. / An energy-frequency parameter for earthquake ground motion intensity measure. in: Earthquake Engineering and Structural Dynamics. 2023 ; Jahrgang 52, Nr. 2. S. 271-284.
Download
@article{5d038dc2405348a6988e566995ad7ccb,
title = "An energy-frequency parameter for earthquake ground motion intensity measure",
abstract = "A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on the Hilbert-Huang transform. To validate the effectiveness of the proposed IM, the correlation analysis between the engineering demand parameter (EDP) and energy-frequency parameter is performed using 1992 recorded ground motions, in which EDP is the maximum inter-storey drift of structures obtained by nonlinear time-history analysis. Results show that the energy-frequency parameter has a strong linear correlation with EDP at natural logarithm, and this correlation is applicable for various structural fundamental periods. We also verified that the lognormal cumulative distribution function can characterize the energy-frequency parameter-based fragility function, which can further facilitate the application of the parameter in seismic risk analysis. Besides, the strong correlation between the energy-frequency parameter and other IMs (such as PGA, PGV, PGD, CAV, (Formula presented.), (Formula presented.), and SI) potentially makes the proposed IM widely applicable in seismic risk analysis. Moreover, since the energy-frequency parameter depends only on the frequency-domain characteristics of the ground-motion signal, it may closely link to seismological theory and provide new insights into seismology engineering.",
keywords = "energy-frequency, fragility function, ground motion IM, Hilbert-Huang transform, seismic risk analysis",
author = "Guan Chen and Jiashu Yang and Yong Liu and Takeshi Kitahara and Michael Beer",
note = "Funding Information: This research is supported by the International Joint Research Platform Seed Fund Program of Wuhan University (Grant No. WHUZZJJ202207) and National Natural Science Foundation of China (Grant No. 52079099). Guan Chen would like to thank the financial support of Sino‐German (CSC‐DAAD) Postdoc Scholarship Program. ",
year = "2023",
month = jan,
day = "10",
doi = "10.1002/eqe.3752",
language = "English",
volume = "52",
pages = "271--284",
journal = "Earthquake Engineering and Structural Dynamics",
issn = "0098-8847",
publisher = "John Wiley and Sons Ltd",
number = "2",

}

Download

TY - JOUR

T1 - An energy-frequency parameter for earthquake ground motion intensity measure

AU - Chen, Guan

AU - Yang, Jiashu

AU - Liu, Yong

AU - Kitahara, Takeshi

AU - Beer, Michael

N1 - Funding Information: This research is supported by the International Joint Research Platform Seed Fund Program of Wuhan University (Grant No. WHUZZJJ202207) and National Natural Science Foundation of China (Grant No. 52079099). Guan Chen would like to thank the financial support of Sino‐German (CSC‐DAAD) Postdoc Scholarship Program.

PY - 2023/1/10

Y1 - 2023/1/10

N2 - A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on the Hilbert-Huang transform. To validate the effectiveness of the proposed IM, the correlation analysis between the engineering demand parameter (EDP) and energy-frequency parameter is performed using 1992 recorded ground motions, in which EDP is the maximum inter-storey drift of structures obtained by nonlinear time-history analysis. Results show that the energy-frequency parameter has a strong linear correlation with EDP at natural logarithm, and this correlation is applicable for various structural fundamental periods. We also verified that the lognormal cumulative distribution function can characterize the energy-frequency parameter-based fragility function, which can further facilitate the application of the parameter in seismic risk analysis. Besides, the strong correlation between the energy-frequency parameter and other IMs (such as PGA, PGV, PGD, CAV, (Formula presented.), (Formula presented.), and SI) potentially makes the proposed IM widely applicable in seismic risk analysis. Moreover, since the energy-frequency parameter depends only on the frequency-domain characteristics of the ground-motion signal, it may closely link to seismological theory and provide new insights into seismology engineering.

AB - A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on the Hilbert-Huang transform. To validate the effectiveness of the proposed IM, the correlation analysis between the engineering demand parameter (EDP) and energy-frequency parameter is performed using 1992 recorded ground motions, in which EDP is the maximum inter-storey drift of structures obtained by nonlinear time-history analysis. Results show that the energy-frequency parameter has a strong linear correlation with EDP at natural logarithm, and this correlation is applicable for various structural fundamental periods. We also verified that the lognormal cumulative distribution function can characterize the energy-frequency parameter-based fragility function, which can further facilitate the application of the parameter in seismic risk analysis. Besides, the strong correlation between the energy-frequency parameter and other IMs (such as PGA, PGV, PGD, CAV, (Formula presented.), (Formula presented.), and SI) potentially makes the proposed IM widely applicable in seismic risk analysis. Moreover, since the energy-frequency parameter depends only on the frequency-domain characteristics of the ground-motion signal, it may closely link to seismological theory and provide new insights into seismology engineering.

KW - energy-frequency

KW - fragility function

KW - ground motion IM

KW - Hilbert-Huang transform

KW - seismic risk analysis

UR - http://www.scopus.com/inward/record.url?scp=85139972717&partnerID=8YFLogxK

U2 - 10.1002/eqe.3752

DO - 10.1002/eqe.3752

M3 - Article

AN - SCOPUS:85139972717

VL - 52

SP - 271

EP - 284

JO - Earthquake Engineering and Structural Dynamics

JF - Earthquake Engineering and Structural Dynamics

SN - 0098-8847

IS - 2

ER -

Von denselben Autoren