Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration

To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not sufficient for non-uniform analysis of a dam. In this s...

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Autores principales:	Reza Tarinejad, Hamed NouriNavroud, Ramtin Sobhkhiz, Mohsen Isari, Hamed Mahjoub
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	non-uniform excitation arch concrete dam kanai-tajimi spectrum dynamic response site effect Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/2191879184e144f186a5ce084b43d199
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spelling	oai:doaj.org-article:2191879184e144f186a5ce084b43d1992021-11-08T15:53:06ZEvaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration2476-39772538-261610.22065/jsce.2018.114662.1435https://doaj.org/article/2191879184e144f186a5ce084b43d1992020-03-01T00:00:00Zhttps://www.jsce.ir/article_67243_7f761e972525fa6580be6c5c71d069c8.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not sufficient for non-uniform analysis of a dam. In this study non uniform accelerations are generated using Kanai-Tajimi spectrum with considering wave passage, incoherent effects and coherence spectrum model. A 3-d finite element model of dam-foundation of Karun 4 arch dam as the highest dam in Iran is modeled. The model is analyzed under uniform and non-uniform generated accelerations and its responses are investigated. The results show that, non-uniform excitation leads to differences in seismic response than uniform excitation on dam. It is indicated that considering non-uniform excitation in seismic analysis increases the stresses and displacements on the dam body. To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not sufficient for non-uniform analysis of a dam. In this study non uniform accelerations are generated using Kanai-Tajimi spectrum with considering wave passage, incoherent effects and coherence spectrum model. A 3-d finite element model of dam-foundation of Karun 4 arch dam as the highest dam in Iran is modeled. The model is analyzed under uniform and non-uniform generated accelerations and its responses are investigated. The results show that, non-uniform excitation leads to differences in seismic response than uniform excitation on dam. It is indicated that considering non-uniform excitation in seismic analysis increases the stresses and displacements on the dam body.Reza TarinejadHamed NouriNavroudRamtin SobhkhizMohsen IsariHamed MahjoubIranian Society of Structrual Engineering (ISSE)articlenon-uniform excitationarch concrete damkanai-tajimi spectrumdynamic responsesite effectBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 1, Pp 186-198 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	non-uniform excitation arch concrete dam kanai-tajimi spectrum dynamic response site effect Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	non-uniform excitation arch concrete dam kanai-tajimi spectrum dynamic response site effect Bridge engineering TG1-470 Building construction TH1-9745 Reza Tarinejad Hamed NouriNavroud Ramtin Sobhkhiz Mohsen Isari Hamed Mahjoub Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
description	To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not sufficient for non-uniform analysis of a dam. In this study non uniform accelerations are generated using Kanai-Tajimi spectrum with considering wave passage, incoherent effects and coherence spectrum model. A 3-d finite element model of dam-foundation of Karun 4 arch dam as the highest dam in Iran is modeled. The model is analyzed under uniform and non-uniform generated accelerations and its responses are investigated. The results show that, non-uniform excitation leads to differences in seismic response than uniform excitation on dam. It is indicated that considering non-uniform excitation in seismic analysis increases the stresses and displacements on the dam body. To investigate the seismic responses of dams due to ground non uniform displacements, the records of earthquake displacements are required. Such data is seldom recorded during a specific earthquake and in the most cases the recorded data in not sufficient for non-uniform analysis of a dam. In this study non uniform accelerations are generated using Kanai-Tajimi spectrum with considering wave passage, incoherent effects and coherence spectrum model. A 3-d finite element model of dam-foundation of Karun 4 arch dam as the highest dam in Iran is modeled. The model is analyzed under uniform and non-uniform generated accelerations and its responses are investigated. The results show that, non-uniform excitation leads to differences in seismic response than uniform excitation on dam. It is indicated that considering non-uniform excitation in seismic analysis increases the stresses and displacements on the dam body.
format	article
author	Reza Tarinejad Hamed NouriNavroud Ramtin Sobhkhiz Mohsen Isari Hamed Mahjoub
author_facet	Reza Tarinejad Hamed NouriNavroud Ramtin Sobhkhiz Mohsen Isari Hamed Mahjoub
author_sort	Reza Tarinejad
title	Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
title_short	Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
title_full	Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
title_fullStr	Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
title_full_unstemmed	Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
title_sort	evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/2191879184e144f186a5ce084b43d199
work_keys_str_mv	AT rezatarinejad evaluationofseismicresponsesofanarchdamundernonuniformgroundmotionusingrandomvibration AT hamednourinavroud evaluationofseismicresponsesofanarchdamundernonuniformgroundmotionusingrandomvibration AT ramtinsobhkhiz evaluationofseismicresponsesofanarchdamundernonuniformgroundmotionusingrandomvibration AT mohsenisari evaluationofseismicresponsesofanarchdamundernonuniformgroundmotionusingrandomvibration AT hamedmahjoub evaluationofseismicresponsesofanarchdamundernonuniformgroundmotionusingrandomvibration
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Evaluation of seismic responses of an arch dam under non-uniform ground motion using random vibration

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