Effects of near-fault and far-fault ground motions on nonlinear dynamic response and seismic damage of concrete gravity dams

Zhang, Sherong; Wang, Gaohui

doi:10.1016/j.soildyn.2013.07.014

Cited by 151 publications

(42 citation statements)

References 47 publications

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“…Due to the devastating earthquake experience, this dam has been more studied. Moreover, the properties of the allocated material for the concrete dam, the foundation, and the reservoir based on experience and background of studies are listed in Table 1 [21][22][23][24][25][26][27][28].…”

Section: Case Studymentioning

confidence: 99%

Parametric Study of the Modal Behavior of Concrete Gravity Dam by Using Finite Element Method

Jafari

Khiavi

2019

Civ Eng J

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Calculating the natural frequency of dams is an essential part of its seismic behavior analysis. Therefore, it is important to calculate the natural frequency. This paper aims simulation and analysis the finite element (FE) model of the Koyna concrete gravity as a case study. For the investigation of the suitable mesh size to achievement the grid independence, the element size considered as a variable parameter and calculated its optimized value by using the Response Surface Optimization (RSO) method. In the independent grid, the Error Contour utilized for controlling mesh quality, which indicates fast variations of the energy in the adjacent elements and can recognize parts of the model that has a high error in calculating responses. The modal response of the dam with a rigid and flexible foundation with and without mass were appraised. The results indicated that modal frequencies in the condition of with and without Pre-stress were different value in all cases. Moreover, the frequency of first four modes by increasing mass and decreasing the stiffness of foundation, frequencies in the case without initial condition (without Pre-stress) has a slightly increased and in the case with initial condition (Pre-stress) had considerable decrease.

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Section: Case Studymentioning

confidence: 99%

Parametric Study of the Modal Behavior of Concrete Gravity Dam by Using Finite Element Method

Jafari

Khiavi

2019

Civ Eng J

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“…[8] ise uzak ve yakın fay deprem kayıtlarının Boğaziçi köprülerinin deprem performanslarına etkilerini incelemişlerdir. Zhang ve Wang [9] uzak ve yakın fay deprem kayıtların betonarme ağırlık tipi bir barajın sismik performansına etkisini incelemişlerdir. Liu ve ark.…”

Section: şEkil 1 Kuvvetli Yer Hareketi Hız Kaydı (A)yakın Fay Kuvveunclassified

Effects of Near-Fault and Far-Fault Ground Motions on Seismic Performance of 5-Story R/C Building

Akdoğan¹,

Karaşi̇n²

2017

EJT

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“…Fluid is assumed to be linearly elastic, inviscid and irrotational. Some details of Lagrangian formulation for dynamic interaction of dam-reservoir-foundation systems can be found in Zhang and Wang [2013c]. Dynamic crack propagation analysis of Koyna gravity dam under the 1967 earthquake is conducted employing the XFEM based cohesive segments method made in ABAQUS program.…”

Section: Seismic Crack Propagation Analysis Of Koyna Gravity Dam-dam-mentioning

confidence: 99%

The Influence of Initial Cracks on the Crack Propagation Process of Concrete Gravity Dam-Reservoir-Foundation Systems

Wang

Zhou

et al. 2015

Journal of Earthquake Engineering

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A scaled-down 1:40 model of a gravity dam with the initial notch in the upstream wall is analyzed using the XFEM. Furthermore, the cracking process of Koyna dam including dam-reservoir-foundation interaction under the 1967 Koyna earthquake is also simulated numerically by employing the XFEM. The computed distribution of cracking damage is consistent with other numerical methods and the model experiment. Subsequently, a typical concrete gravity dam with different crack cases is employed as a numerical example. The effects of the initial crack position and length on the crack propagation and seismic response of dam-reservoir-foundation systems are studied.

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Effects of near-fault and far-fault ground motions on nonlinear dynamic response and seismic damage of concrete gravity dams

Cited by 151 publications

References 47 publications

Parametric Study of the Modal Behavior of Concrete Gravity Dam by Using Finite Element Method

Parametric Study of the Modal Behavior of Concrete Gravity Dam by Using Finite Element Method

Effects of Near-Fault and Far-Fault Ground Motions on Seismic Performance of 5-Story R/C Building

The Influence of Initial Cracks on the Crack Propagation Process of Concrete Gravity Dam-Reservoir-Foundation Systems

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