Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra

Abstract Simulated earthquake motions whose response spectrums meet the multi‐target response spectrums are often used while designing earthquake resistant nuclear power plant facilities. Therefore, it is advantageous to utilize simulated ground motions with phase characteristics of actual earthquak...

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Main Author: Takuya Suzuki
Format: Article
Language:English
Published: Wiley 2020-10-01
Series:Japan Architectural Review
Subjects:
Online Access:https://doi.org/10.1002/2475-8876.12175
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author Takuya Suzuki
author_facet Takuya Suzuki
author_sort Takuya Suzuki
collection DOAJ
description Abstract Simulated earthquake motions whose response spectrums meet the multi‐target response spectrums are often used while designing earthquake resistant nuclear power plant facilities. Therefore, it is advantageous to utilize simulated ground motions with phase characteristics of actual earthquake ground motions in the design of nuclear power plant facilities. Several methods exist for the generation of these motions. However, these methods cannot strictly maintain phase properties of the simulated earthquake motions. A method to generate simulated earthquake motions that meets both the multi‐target response spectrum and phase property requirements does not exist. This study proposes a novel method for the generation of simulated earthquake motions considering actual earthquake phase properties and multiple target response spectra. This method is equivalent to the modal iterative error correction method, which is effective for solving inverse problems with strong discontinuities. Therefore, this study proposes an improvement of this method for spectral fitting. The outline and details of the method are described and the results of experiments performed to validate the accuracy of the method are presented.
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spelling doaj-art-e77a9a4d9dd04eb09fee152c252872a52025-08-20T03:33:07ZengWileyJapan Architectural Review2475-88762020-10-013450951710.1002/2475-8876.12175Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectraTakuya Suzuki0R&D Institute Takenaka Corporation Inzai City Chiba JapanAbstract Simulated earthquake motions whose response spectrums meet the multi‐target response spectrums are often used while designing earthquake resistant nuclear power plant facilities. Therefore, it is advantageous to utilize simulated ground motions with phase characteristics of actual earthquake ground motions in the design of nuclear power plant facilities. Several methods exist for the generation of these motions. However, these methods cannot strictly maintain phase properties of the simulated earthquake motions. A method to generate simulated earthquake motions that meets both the multi‐target response spectrum and phase property requirements does not exist. This study proposes a novel method for the generation of simulated earthquake motions considering actual earthquake phase properties and multiple target response spectra. This method is equivalent to the modal iterative error correction method, which is effective for solving inverse problems with strong discontinuities. Therefore, this study proposes an improvement of this method for spectral fitting. The outline and details of the method are described and the results of experiments performed to validate the accuracy of the method are presented.https://doi.org/10.1002/2475-8876.12175modal iterative error correctionphase propertyresponse spectrumsimulated earthquake motion
spellingShingle Takuya Suzuki
Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
Japan Architectural Review
modal iterative error correction
phase property
response spectrum
simulated earthquake motion
title Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
title_full Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
title_fullStr Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
title_full_unstemmed Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
title_short Generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
title_sort generation of simulated earthquake motions considering actual earthquake phase and multiple target response spectra
topic modal iterative error correction
phase property
response spectrum
simulated earthquake motion
url https://doi.org/10.1002/2475-8876.12175
work_keys_str_mv AT takuyasuzuki generationofsimulatedearthquakemotionsconsideringactualearthquakephaseandmultipletargetresponsespectra