Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions

Sediment in the dam’s reservoir has a significant role on mitigation of dynamic response of concrete gravity dams and also the seismic response of dams in near-field motion can be considerably different from those observed in the far field and the near-fault ground motions can cause considerable dam...

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Autores principales:	Farhoud Kalateh, Amir Gamatlo
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	gravity dam sediment nonlinear dynamic analysis concrete damage plasticity near fault motion far fault motion seismic damage Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/4b9f28d8eda2442fafc27a44be3644f4
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spelling	oai:doaj.org-article:4b9f28d8eda2442fafc27a44be3644f42021-11-08T15:53:13ZInvestigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions2476-39772538-261610.22065/jsce.2018.121313.1488https://doaj.org/article/4b9f28d8eda2442fafc27a44be3644f42020-06-01T00:00:00Zhttps://www.jsce.ir/article_68549_f92876f5ac3b90ba8c6bd5bf4bebf0c9.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Sediment in the dam’s reservoir has a significant role on mitigation of dynamic response of concrete gravity dams and also the seismic response of dams in near-field motion can be considerably different from those observed in the far field and the near-fault ground motions can cause considerable damage during an earthquake. This paper presents results of a study aimed at evaluating the sediment effects in the near-fault and far-fault ground motions on nonlinear dynamic response and seismic damage of concrete gravity dams including dam-reservoir-foundation interaction. For this purpose, 3 as-recorded earthquake records which display ground motions with an apparent velocity pulse are selected to represent the near-fault ground motion characteristics. The Shafaroud gravity dam, which is selected as a numerical application, is subjected to a set of as-recorded near-fault and far-fault strong ground motion records and three different level of sediment are assumed. Results show that in the near-fault horizontal earthquake with assuming 2 m sediment height a 3.67% reduction and with 8 m sediment height a 10.33% reduction in dam crest displacement are obtained but in far-fault ground motion reservoir sediment do not have a sable pattern effect on dam’s response. Therefore, any dam must be evaluated for sediment effects on its dynamic response individually.Farhoud KalatehAmir GamatloIranian Society of Structrual Engineering (ISSE)articlegravity damsedimentnonlinear dynamic analysisconcrete damage plasticitynear fault motionfar fault motionseismic damageBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 2, Pp 130-150 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	gravity dam sediment nonlinear dynamic analysis concrete damage plasticity near fault motion far fault motion seismic damage Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	gravity dam sediment nonlinear dynamic analysis concrete damage plasticity near fault motion far fault motion seismic damage Bridge engineering TG1-470 Building construction TH1-9745 Farhoud Kalateh Amir Gamatlo Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
description	Sediment in the dam’s reservoir has a significant role on mitigation of dynamic response of concrete gravity dams and also the seismic response of dams in near-field motion can be considerably different from those observed in the far field and the near-fault ground motions can cause considerable damage during an earthquake. This paper presents results of a study aimed at evaluating the sediment effects in the near-fault and far-fault ground motions on nonlinear dynamic response and seismic damage of concrete gravity dams including dam-reservoir-foundation interaction. For this purpose, 3 as-recorded earthquake records which display ground motions with an apparent velocity pulse are selected to represent the near-fault ground motion characteristics. The Shafaroud gravity dam, which is selected as a numerical application, is subjected to a set of as-recorded near-fault and far-fault strong ground motion records and three different level of sediment are assumed. Results show that in the near-fault horizontal earthquake with assuming 2 m sediment height a 3.67% reduction and with 8 m sediment height a 10.33% reduction in dam crest displacement are obtained but in far-fault ground motion reservoir sediment do not have a sable pattern effect on dam’s response. Therefore, any dam must be evaluated for sediment effects on its dynamic response individually.
format	article
author	Farhoud Kalateh Amir Gamatlo
author_facet	Farhoud Kalateh Amir Gamatlo
author_sort	Farhoud Kalateh
title	Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
title_short	Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
title_full	Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
title_fullStr	Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
title_full_unstemmed	Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions
title_sort	investigation of sediment in the reservoir on seismic damage of concrete gravity dam in the near-fault and far-fault ground motions
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/4b9f28d8eda2442fafc27a44be3644f4
work_keys_str_mv	AT farhoudkalateh investigationofsedimentinthereservoironseismicdamageofconcretegravitydaminthenearfaultandfarfaultgroundmotions AT amirgamatlo investigationofsedimentinthereservoironseismicdamageofconcretegravitydaminthenearfaultandfarfaultgroundmotions
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Investigation of Sediment in the reservoir on Seismic Damage of Concrete Gravity Dam in the Near-Fault and Far-Fault Ground Motions

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