Simulation of three-component seismic motions at seafloor using onshore earthquake recordings

C. Li; H. N. Li; K. M. Bi; H. Hao

Simulation of three-component seismic motions at seafloor using onshore earthquake recordings

C. Li, H. N. Li, K. M. Bi, H. Hao

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

This paper proposes a simulation method of three-component seafloor seismic motions using onshore earthquake recordings. Firstly, a pair of onshore and seafloor motions recorded during one earthquake is selected; the onshore recordings are employed as the predefined motions in the simulation of seafloor motions. The ground motion transfer functions of the sites beneath the onshore and seafloor stations are calculated based on the one-dimensional wave propagation theory. The base rock power spectral density function is estimated by dividing the PSD functions of the onshore motion with the onshore site transfer functions. The seismic motions at seafloor site are simulated using the base rock PSD functions and the offshore site transfer functions, which takes the influence of seawater layer and water saturation into consideration. The recorded seafloor motion is used to validate the characteristics of the simulated seafloor motions. Comparison results show that the vertical-to-horizontal spectral ratios of the simulated seafloor motions are compatible with those of the actual seafloor records.

Original language	English
Title of host publication	Mechanics of Structures and Materials
Subtitle of host publication	Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016
Editors	Chunwei Zhang, Hong Hao
Publisher	CRC Press/Balkem
Pages	651-656
Number of pages	6
ISBN (Print)	9781138029934
Publication status	Published - 2017
Externally published	Yes
Event	24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 - Perth, Australia Duration: 6 Dec 2016 → 9 Dec 2016

Publication series

Name	Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016

Conference

Conference	24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016
Country/Territory	Australia
City	Perth
Period	6/12/16 → 9/12/16

ASJC Scopus subject areas

Civil and Structural Engineering
Mechanics of Materials

Cite this

Li, C., Li, H. N., Bi, K. M., & Hao, H. (2017). Simulation of three-component seismic motions at seafloor using onshore earthquake recordings. In C. Zhang, & H. Hao (Eds.), Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016 (pp. 651-656). (Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016). CRC Press/Balkem.

Li, C. ; Li, H. N. ; Bi, K. M. et al. / Simulation of three-component seismic motions at seafloor using onshore earthquake recordings. Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016. editor / Chunwei Zhang ; Hong Hao. CRC Press/Balkem, 2017. pp. 651-656 (Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016).

@inproceedings{6d33c483432f4f1a83d3dcb16bb0560a,

title = "Simulation of three-component seismic motions at seafloor using onshore earthquake recordings",

abstract = "This paper proposes a simulation method of three-component seafloor seismic motions using onshore earthquake recordings. Firstly, a pair of onshore and seafloor motions recorded during one earthquake is selected; the onshore recordings are employed as the predefined motions in the simulation of seafloor motions. The ground motion transfer functions of the sites beneath the onshore and seafloor stations are calculated based on the one-dimensional wave propagation theory. The base rock power spectral density function is estimated by dividing the PSD functions of the onshore motion with the onshore site transfer functions. The seismic motions at seafloor site are simulated using the base rock PSD functions and the offshore site transfer functions, which takes the influence of seawater layer and water saturation into consideration. The recorded seafloor motion is used to validate the characteristics of the simulated seafloor motions. Comparison results show that the vertical-to-horizontal spectral ratios of the simulated seafloor motions are compatible with those of the actual seafloor records.",

author = "C. Li and Li, {H. N.} and Bi, {K. M.} and H. Hao",

note = "Funding Information: This study is supported by the National Basic Research Program of China (2011CB013605) and the Australian Research Council Discovery Early Career Researcher Award (DE150100195). The authors would like to gratefully acknowledge the US National Center for Engineering Strong Motion Data for providing the onshore and offshore earthquake recordings. Publisher Copyright: {\textcopyright} 2017 Taylor & Francis Group, London.; 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 ; Conference date: 06-12-2016 Through 09-12-2016",

year = "2017",

language = "English",

isbn = "9781138029934",

series = "Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016",

publisher = "CRC Press/Balkem",

pages = "651--656",

editor = "Chunwei Zhang and Hong Hao",

booktitle = "Mechanics of Structures and Materials",

}

Li, C, Li, HN, Bi, KM & Hao, H 2017, Simulation of three-component seismic motions at seafloor using onshore earthquake recordings. in C Zhang & H Hao (eds), Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016. Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016, CRC Press/Balkem, pp. 651-656, 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016, Perth, Australia, 6/12/16.

Simulation of three-component seismic motions at seafloor using onshore earthquake recordings. / Li, C.; Li, H. N.; Bi, K. M. et al.

Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016. ed. / Chunwei Zhang; Hong Hao. CRC Press/Balkem, 2017. p. 651-656 (Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Simulation of three-component seismic motions at seafloor using onshore earthquake recordings

AU - Li, C.

AU - Li, H. N.

AU - Bi, K. M.

AU - Hao, H.

N1 - Funding Information: This study is supported by the National Basic Research Program of China (2011CB013605) and the Australian Research Council Discovery Early Career Researcher Award (DE150100195). The authors would like to gratefully acknowledge the US National Center for Engineering Strong Motion Data for providing the onshore and offshore earthquake recordings. Publisher Copyright: © 2017 Taylor & Francis Group, London.

PY - 2017

Y1 - 2017

N2 - This paper proposes a simulation method of three-component seafloor seismic motions using onshore earthquake recordings. Firstly, a pair of onshore and seafloor motions recorded during one earthquake is selected; the onshore recordings are employed as the predefined motions in the simulation of seafloor motions. The ground motion transfer functions of the sites beneath the onshore and seafloor stations are calculated based on the one-dimensional wave propagation theory. The base rock power spectral density function is estimated by dividing the PSD functions of the onshore motion with the onshore site transfer functions. The seismic motions at seafloor site are simulated using the base rock PSD functions and the offshore site transfer functions, which takes the influence of seawater layer and water saturation into consideration. The recorded seafloor motion is used to validate the characteristics of the simulated seafloor motions. Comparison results show that the vertical-to-horizontal spectral ratios of the simulated seafloor motions are compatible with those of the actual seafloor records.

AB - This paper proposes a simulation method of three-component seafloor seismic motions using onshore earthquake recordings. Firstly, a pair of onshore and seafloor motions recorded during one earthquake is selected; the onshore recordings are employed as the predefined motions in the simulation of seafloor motions. The ground motion transfer functions of the sites beneath the onshore and seafloor stations are calculated based on the one-dimensional wave propagation theory. The base rock power spectral density function is estimated by dividing the PSD functions of the onshore motion with the onshore site transfer functions. The seismic motions at seafloor site are simulated using the base rock PSD functions and the offshore site transfer functions, which takes the influence of seawater layer and water saturation into consideration. The recorded seafloor motion is used to validate the characteristics of the simulated seafloor motions. Comparison results show that the vertical-to-horizontal spectral ratios of the simulated seafloor motions are compatible with those of the actual seafloor records.

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M3 - Conference article published in proceeding or book

AN - SCOPUS:85034975315

SN - 9781138029934

T3 - Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016

SP - 651

EP - 656

BT - Mechanics of Structures and Materials

A2 - Zhang, Chunwei

A2 - Hao, Hong

PB - CRC Press/Balkem

T2 - 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016

Y2 - 6 December 2016 through 9 December 2016

ER -

Li C, Li HN, Bi KM, Hao H. Simulation of three-component seismic motions at seafloor using onshore earthquake recordings. In Zhang C, Hao H, editors, Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016. CRC Press/Balkem. 2017. p. 651-656. (Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016).

Simulation of three-component seismic motions at seafloor using onshore earthquake recordings

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