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Seismic Response of Concrete Gravity Dam- Reservoir Systems Including Foundation Flexibility

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Authors Seismic Response of Concrete Gravity Dam- Reservoir Systems Including Foundation Flexibility

  Leila Khanmohammadi - Assistant Professor of Civil Engineering- Payame Noor University- Tehran- Iran-

Abstract:

Because of the reservoir and foundation effects, seismic response of concrete gravity dams are more involved than other common structures. This problem is mostly sourced by the differences between reservoir water, dam body and foundation material behaviors. To account for the reservoir effect in dynamic analysis of concrete gravity dams, two methods are generally employed. Eulerian method in reservoir modeling gives rise to a set of coupled equations, whereas in Lagrangian method, the same equations for dam and foundation structure are used. In this paper, a general procedure for analysis of the response of concrete gravity dams, including the dynamic effects of reservoir with Lagrangian modeling and flexible foundation, to the horizontal and vertical components of different earthquake loads is presented. Analysis of dam-foundation-reservoir system performed to calculate reservoir hydrodynamic pressure on dam face and dam displacement under earthquake, for dam-foundation-reservoir systems with various dimensions, characteristics and earthquake. Then results of dam-foundation-reservoir system analysis is evaluated in different conditions such as rigid foundation and flexible foundation and in different cases such as loading frequency, boundary condition and foundation elasticity modulus effects.

Keywords:

Seismic response, Concrete gravity dam, Lagrangian method, Foundation flexibility.

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https://www.civilica.com/Paper-SECM03-SECM03_225.html
COI code: SECM03_225

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Khanmohammadi, Leila, 2019, Seismic Response of Concrete Gravity Dam- Reservoir Systems Including Foundation Flexibility, rd International Conference on Applied Researches in Structural Engineering and Construction Management (secm2019), تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-SECM03-SECM03_225.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Khanmohammadi, Leila, 2019)
Second and more: (Khanmohammadi, 2019)
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Type: Payame Noor University
Paper No.: 43355
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