Investigation of Damping in Arch Dam–Water–Foundation Rock System of Mauvoisin Arch Dam

Wang, Jinting

doi:10.1016/b978-0-12-408083-6.00020-9

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Currently, several researchers investigated the input approach to an arch dam-foundation system [4] and explored the damage thereto by defining different dynamic responses [5] when subjected to strong ground motions. Various seismic evaluation indices were presented to estimate structural seismic performance accounting for structural nonlinearity, such as displacement, damage, and contraction joint opening indices [6].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Chen

et al. 2020

Advances in Civil Engineering

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The seismic dynamic response and correlation between various indicators of an arch dam under a series of stochastic earthquake excitation are analysed. Seismic response assessment of a concrete arch dam is conducted through nonlinear endurance time analysis (ETA) of a typical arch dam. The 289 m high Baihetan arch dam in Southwest China (as a case study) is subjected to a set of 10 three-component endurance time acceleration histories (ETAHs) synthesised on the basis of the design site acceleration response spectrum to increasing peak ground acceleration (PGA). The effects of dam-reservoir-foundation interaction, radiation damping of infinite rock foundation, and nonlinearities of dam material and joint contact elements are considered. The indices to failure modes of damage propagation through the dam body and the deformation and joint opening beyond the limit states of the arch dam are identified. Dynamic responses, including deformation, joint opening, and damage distribution, are statistically analysed. The dispersion and correlation of indicators are analysed by employing the coefficient of variation and coefficient of correlation, respectively. The deterministic relationships between contraction joint opening, displacement, and damage volume ratio are obtained by using a multivariate fitting method. The results show that those failure indices have similar exponential trends, and seismic intensity parameters exert a significant influence on seismic response and damage under increasing PGA. The results of correlation and fragility analysis demonstrate that damage volume ratio and the sum of joint opening are consistent, which can provide a strong scientific basis for predicting earthquake damage.

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Section: Introductionmentioning

confidence: 99%

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Chen

et al. 2020

Advances in Civil Engineering

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“…Omidi and Lotfi 15 , Xu et al, 16 and Du and Tu 17 developed the contraction joint element for their arch dam numerical model. Wang 18 and Lin and Hu 19 conducted a numerical study on radiation damping in an arch dam-water-foundation rock system. Hariri-Ardebili et al 20 also analyzed the earthquake input excitation mechanism for a dam-water-foundation rock system.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Non-fully Similar Laws of Damage to an Arch Dam in Shaking Table Model Tests

Chen

Lundbäck

et al. 2014

Advances in Mechanical Engineering

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In order to overcome the defect that the general shaking table test can’t clarify the scale relationship between the prototype structure and the scale model in the damaged area based on the fully similar laws, we derived a method that can analyze the relationship between the prototype structure and the scale model in the damaged area based on non-fully similar lows and verified it. We selected the appropriate material (the emulation concrete material, ECM), which has a good scale relationship with the prototype material in the elastic stage, the crack appearance stage, and crack propagation stage (damage stage). We proposed some similar ratios to reveal the similar relationship between the prototype structure and the scale model in the elastic stage, the crack appearance stage, and the crack propagation stage. Especially, we proposed two similar ratios: cr and hr (deduced by the fracture toughness similarity requirements and the fracture energy similarity requirements, respectively) which can well reflect the similar relationship between the prototype structure and the scale model in the damaged area. In order to verify these ratios, we compared the results of the prototype structure numerical simulation with those of the shaking table test of the scale model. The results show that hr has higher accuracy for predicting the relationship between the prototype structure and the scale model in the damaged area.

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Investigation of Damping in Arch Dam–Water–Foundation Rock System of Mauvoisin Arch Dam

Cited by 2 publications

References 8 publications

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Investigation of Stochastic Seismic Response and Index Correlation of an Arch Dam Using Endurance Time Analysis Method

Investigation of Non-fully Similar Laws of Damage to an Arch Dam in Shaking Table Model Tests

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