Nonlinear analysis of concrete gravity dams under normal fault motion

The importance of the seismic behavior of concrete gravity dams in their safety evaluation and stability is inevitable. Many factors affect the prediction of the behavior of concrete dams such as dam-foundation-reservoir interaction, dam and foundation cracking and also displacement due to fault mov...

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Autores principales:	Mehdi Alijani Ardeshir, Bahram Navayi Neya, Mohammadtaghi Ahmadi
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2016
Materias:	nonlinear analysis concrete gravity dam normal fault motion smeared crack model Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/6cb326f665804b7eb69a9d1803415af4
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id	oai:doaj.org-article:6cb326f665804b7eb69a9d1803415af4
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spelling	oai:doaj.org-article:6cb326f665804b7eb69a9d1803415af42021-11-08T15:45:57ZNonlinear analysis of concrete gravity dams under normal fault motion2476-39772538-2616https://doaj.org/article/6cb326f665804b7eb69a9d1803415af42016-09-01T00:00:00Zhttps://www.jsce.ir/article_38579_d4f07eb5f0e58232352498f2d3a6646f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The importance of the seismic behavior of concrete gravity dams in their safety evaluation and stability is inevitable. Many factors affect the prediction of the behavior of concrete dams such as dam-foundation-reservoir interaction, dam and foundation cracking and also displacement due to fault movement that could causes nonlinear behavior. The aim of this study is nonlinear analysis of concrete gravity dams, including displacement caused by normal fault movement in the dam foundation. For this purpose, dam-foundation-reservoir system is modeled using Lagrangian method and analysis of system is done by finite element method. The coordinate smeared crack model based on the nonlinear fracture mechanics is used for crack modeling in the dam body and foundation. Using two separate method including split node technique and contact element, the fault movement are modeled and the position and angle of fault has been studied. To verify the results, dam crest displacement and crack profile in the body of a concrete gravity dam is presented as an example. The results show that low fault movement causes the cracks in the dam body and could be jeopardizes the stability and safety of concrete dam.Mehdi Alijani ArdeshirBahram Navayi NeyaMohammadtaghi AhmadiIranian Society of Structrual Engineering (ISSE)articlenonlinear analysisconcrete gravity damnormal fault motion smeared crack modelBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 3, Iss 2, Pp 133-155 (2016)
institution	DOAJ
collection	DOAJ
language	FA
topic	nonlinear analysis concrete gravity dam normal fault motion smeared crack model Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	nonlinear analysis concrete gravity dam normal fault motion smeared crack model Bridge engineering TG1-470 Building construction TH1-9745 Mehdi Alijani Ardeshir Bahram Navayi Neya Mohammadtaghi Ahmadi Nonlinear analysis of concrete gravity dams under normal fault motion
description	The importance of the seismic behavior of concrete gravity dams in their safety evaluation and stability is inevitable. Many factors affect the prediction of the behavior of concrete dams such as dam-foundation-reservoir interaction, dam and foundation cracking and also displacement due to fault movement that could causes nonlinear behavior. The aim of this study is nonlinear analysis of concrete gravity dams, including displacement caused by normal fault movement in the dam foundation. For this purpose, dam-foundation-reservoir system is modeled using Lagrangian method and analysis of system is done by finite element method. The coordinate smeared crack model based on the nonlinear fracture mechanics is used for crack modeling in the dam body and foundation. Using two separate method including split node technique and contact element, the fault movement are modeled and the position and angle of fault has been studied. To verify the results, dam crest displacement and crack profile in the body of a concrete gravity dam is presented as an example. The results show that low fault movement causes the cracks in the dam body and could be jeopardizes the stability and safety of concrete dam.
format	article
author	Mehdi Alijani Ardeshir Bahram Navayi Neya Mohammadtaghi Ahmadi
author_facet	Mehdi Alijani Ardeshir Bahram Navayi Neya Mohammadtaghi Ahmadi
author_sort	Mehdi Alijani Ardeshir
title	Nonlinear analysis of concrete gravity dams under normal fault motion
title_short	Nonlinear analysis of concrete gravity dams under normal fault motion
title_full	Nonlinear analysis of concrete gravity dams under normal fault motion
title_fullStr	Nonlinear analysis of concrete gravity dams under normal fault motion
title_full_unstemmed	Nonlinear analysis of concrete gravity dams under normal fault motion
title_sort	nonlinear analysis of concrete gravity dams under normal fault motion
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2016
url	https://doaj.org/article/6cb326f665804b7eb69a9d1803415af4
work_keys_str_mv	AT mehdialijaniardeshir nonlinearanalysisofconcretegravitydamsundernormalfaultmotion AT bahramnavayineya nonlinearanalysisofconcretegravitydamsundernormalfaultmotion AT mohammadtaghiahmadi nonlinearanalysisofconcretegravitydamsundernormalfaultmotion
_version_	1718441671297859584

Nonlinear analysis of concrete gravity dams under normal fault motion

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