Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions

The seismic design and dynamic analysis of high concrete gravity dams is a challenge due to the dams’ high levels of designed seismic intensity, dam height, and water pressure. In this study, the rigid, massless, and viscoelastic artificial boundary foundation models were established to consider the...

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Autores principales:	Chen Wang, Hanyun Zhang, Yunjuan Zhang, Lina Guo, Yingjie Wang, Thiri Thon Thira Htun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydraulic structure high gravity dams dam-foundation-reservoir dynamic interaction earthquake input mechanisms hydrodynamic pressure foundation size Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/42d2f245d33e4badb3b7b865e6366349
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spelling	oai:doaj.org-article:42d2f245d33e4badb3b7b865e63663492021-11-11T19:56:30ZInfluences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions10.3390/w132130722073-4441https://doaj.org/article/42d2f245d33e4badb3b7b865e63663492021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3072https://doaj.org/toc/2073-4441The seismic design and dynamic analysis of high concrete gravity dams is a challenge due to the dams’ high levels of designed seismic intensity, dam height, and water pressure. In this study, the rigid, massless, and viscoelastic artificial boundary foundation models were established to consider the effect of dam–foundation dynamic interaction on the dynamic responses of the dam. Three reservoir water simulation methods, namely, the Westergaard added mass method, and incompressible and compressible potential fluid methods, were used to account for the effect of hydrodynamic pressure on the dynamic characteristics and seismic responses of the dam. The ranges of the truncation boundary of the foundation and reservoir in numerical analysis were further investigated. The research results showed that the viscoelastic artificial boundary foundation was more efficient than the massless foundation in the simulation of the radiation damping effect of the far-field foundation. It was found that a foundation size of 3 times the dam height was the most reasonable range of the truncation boundary of the foundation. The dynamic interaction of the reservoir foundation had a significant influence on the dam stress.Chen WangHanyun ZhangYunjuan ZhangLina GuoYingjie WangThiri Thon Thira HtunMDPI AGarticlehydraulic structurehigh gravity damsdam-foundation-reservoir dynamic interactionearthquake input mechanismshydrodynamic pressurefoundation sizeHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3072, p 3072 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydraulic structure high gravity dams dam-foundation-reservoir dynamic interaction earthquake input mechanisms hydrodynamic pressure foundation size Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	hydraulic structure high gravity dams dam-foundation-reservoir dynamic interaction earthquake input mechanisms hydrodynamic pressure foundation size Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Chen Wang Hanyun Zhang Yunjuan Zhang Lina Guo Yingjie Wang Thiri Thon Thira Htun Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
description	The seismic design and dynamic analysis of high concrete gravity dams is a challenge due to the dams’ high levels of designed seismic intensity, dam height, and water pressure. In this study, the rigid, massless, and viscoelastic artificial boundary foundation models were established to consider the effect of dam–foundation dynamic interaction on the dynamic responses of the dam. Three reservoir water simulation methods, namely, the Westergaard added mass method, and incompressible and compressible potential fluid methods, were used to account for the effect of hydrodynamic pressure on the dynamic characteristics and seismic responses of the dam. The ranges of the truncation boundary of the foundation and reservoir in numerical analysis were further investigated. The research results showed that the viscoelastic artificial boundary foundation was more efficient than the massless foundation in the simulation of the radiation damping effect of the far-field foundation. It was found that a foundation size of 3 times the dam height was the most reasonable range of the truncation boundary of the foundation. The dynamic interaction of the reservoir foundation had a significant influence on the dam stress.
format	article
author	Chen Wang Hanyun Zhang Yunjuan Zhang Lina Guo Yingjie Wang Thiri Thon Thira Htun
author_facet	Chen Wang Hanyun Zhang Yunjuan Zhang Lina Guo Yingjie Wang Thiri Thon Thira Htun
author_sort	Chen Wang
title	Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
title_short	Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
title_full	Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
title_fullStr	Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
title_full_unstemmed	Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions
title_sort	influences on the seismic response of a gravity dam with different foundation and reservoir modeling assumptions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/42d2f245d33e4badb3b7b865e6366349
work_keys_str_mv	AT chenwang influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions AT hanyunzhang influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions AT yunjuanzhang influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions AT linaguo influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions AT yingjiewang influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions AT thirithonthirahtun influencesontheseismicresponseofagravitydamwithdifferentfoundationandreservoirmodelingassumptions
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Influences on the Seismic Response of a Gravity Dam with Different Foundation and Reservoir Modeling Assumptions

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