Fluid–structure interaction of Brezina arch dam: 3D modal analysis

Amina, Tahar Berrabah; Belharizi, Mohamed; Laulusa, André; Bekkouche, Abdelmalek

doi:10.1016/j.engstruct.2014.11.011

Cited by 18 publications

(5 citation statements)

References 13 publications

(35 reference statements)

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“…The frequency dependent foundation approach was determined to yield a decrease in the fundamental resonant response of the dam; ignoring the inertial effects of foundation models overestimated the stresses on the arch dams. Similar conclusions were reached by using the boundary element or finite element models employing fluid elements for the complete problem by other researchers [12][13][14].…”

Section: Introductionsupporting

confidence: 78%

Seismic assessment of a monolithic RCC gravity dam including three dimensional dam–foundation–reservoir interaction

Yilmazturk

Arıcı

Binici

2015

Engineering Structures

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Section: Introductionsupporting

confidence: 78%

Seismic assessment of a monolithic RCC gravity dam including three dimensional dam–foundation–reservoir interaction

Yilmazturk

Arıcı

Binici

2015

Engineering Structures

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“…Khiavi et al [28] investigated the hydrodynamic response of a concrete gravity dam and reservoir under vertical vibration using an analytical method. Amina et al [29] conducted a series of modal analyses of the Brezina concrete arch dam based on the Lagrangian and added mass approaches. The results indicated that the higher coupled frequencies would be obtained from the added mass approach as compared to the actual ones, whereas the more approximate coupled frequencies would be obtained from the Lagrangian approach.…”

Section: Introductionmentioning

confidence: 99%

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

Wang

Zhang²,

Zhang

et al. 2021

Water

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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.

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“…Amina et al studied the modal behavior of arch dams considering the fuid-structure interaction. According to numerical analyses, it was seen that the natural frequencies of the dam-massless foundation model are well lower for without water situation of the dam model [3]. Feng et al examined the safety procedures of arch dams utilizing safety factors (k1, k2, and k3) [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Relationship between Reservoir Level Changes and Earthquake Damage Responses of High Arch Dams: A 3D Numerical Study of Ermenek Arch Dam (220 m) in Turkey

Çavuşli

2023

Advances in Civil Engineering

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Examining the earthquake behaviors of important water structures such as arch dams is of great importance for the future and safety of these structures. Besides, different reservoir heights, which occur as a result of different seasonal precipitation, can cause great losses in the structural behavior of arch dams. For this reason, in this study, the effects of various reservoir water heights on the earthquake behavior of arch dams are evaluated by considering a creep material model. Ermenek dam, one of the highest dams in Turkey, is chosen for the 3D (3D) numerical analyses. This dam has 4 different gallery spaces in its body and it has a body height of 220 m. While creating a 3D finite-different model of the dam, the creep material models are utilized for the concrete and foundation sections. For the 3D earthquake analyses, free-field and quiet nonreflecting boundary conditions (BCs) are defined to the boundaries of the model. Besides, fix BCs are added to the base of the dam. While creating the gallery spaces of the dam, the original dam project is taken into consideration, and attention is paid to creating the oval geometry of the gallery spaces following the project. For earthquake analyses, 4 different water levels (25 m, 85 m, 150 m, and 200 m) are considered, and hydrostatic forces and water table are used while generating the reservoir water. Furthermore, a total of 18 different strong ground motions are used in the earthquake analyses to examine the earthquake behavior of the dam. According to the earthquake analyses, it is concluded that different reservoir heights have great effects on the earthquake behavior of the Ermenek dam. Moreover, it has been observed that the height of the reservoir water causes significant earthquake stress and displacement differences around the gallery spaces of the dam.

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Fluid–structure interaction of Brezina arch dam: 3D modal analysis

Cited by 18 publications

References 13 publications

Seismic assessment of a monolithic RCC gravity dam including three dimensional dam–foundation–reservoir interaction

Seismic assessment of a monolithic RCC gravity dam including three dimensional dam–foundation–reservoir interaction

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

Evaluating the Relationship between Reservoir Level Changes and Earthquake Damage Responses of High Arch Dams: A 3D Numerical Study of Ermenek Arch Dam (220 m) in Turkey

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