On the Dynamic Capacity of Concrete Dams

Furgani, Luca; Hariri-Ardebili, Mohammad Amin; Meghella, M.; Kolbadi, S. Mahdi S.

doi:10.3390/infrastructures4030057

Cited by 12 publications

(7 citation statements)

References 48 publications

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“…As can be seen from this figure, the final reservoir water level changes as the refractive energy changes. At water levels less than 120 m and before the start of germination, the displacement of the mentioned models has a good adaptation to each other, but with the beginning of germination, the difference in the response of the samples can be seen [44].…”

Section: Shock and Vibrationmentioning

confidence: 98%

Comprehensive Assessment of the Effect of Water Pressure on the Development of Cracks in Gravity Concrete Dams

Safayenikoo

2021

Shock and Vibration

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In recent years, extensive studies have been conducted to ensure the safety and stability of concrete dams. The development of numerical methods in considering more factors affecting the response of dams and also increasing the accuracy of calculation methods has played an important role in ensuring the safety of concrete dams. Therefore, one of the most important points in the design and analysis of concrete dams is to predict the location of cracks, expand it, investigate the phenomenon of hydraulic failure, consider the pressure caused by the infiltration of reservoir water into cracks and joints in static and dynamic states, and find solutions prevention of dam destruction due to this phenomenon. In the study of the effect of tensile strength, with increasing tensile strength, the reservoir water level increases at the beginning of cracking and the final reservoir water level increases, but there is no linear relationship between tensile strength and the two responses. In general, in examining the refractive energy parameter in each of the states with and without taking into account the water pressure inside the crack, the results of the mentioned models are slightly different from each other, but comparing the results shows that in nonlinear analysis considering water pressure inside the crack failure energy change has a greater impact on the results of these models.

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Section: Shock and Vibrationmentioning

confidence: 98%

Comprehensive Assessment of the Effect of Water Pressure on the Development of Cracks in Gravity Concrete Dams

Safayenikoo

2021

Shock and Vibration

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“…Figures 32(a) and 32(b) compare the sensitivity of time-dependent cracking DI in a concrete dam with respect to concrete strength (i.e., f t and f c ) [119]. Using the failure time as a metric, the system is highly sensitive to f t and practically insensitive to f c .…”

Section: Group-iii: Failure-based Qoismentioning

confidence: 99%

Sensitivity analysis of reinforced concrete structures :

Sattar¹

2023

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Sensitivity analysis is a crucial step in computational mechanics and earthquake engineering. Sensitivity analysis of a model (either numerical or physical) aims at quantifying the relative importance of each input parameter, their potential interaction, and their effects on the model response. Sensitivity analysis has a long-term application in structural engineering more specifically on reinforced concrete RC structures. Many researchers benefited from the results of sensitivity analysis to reduce the uncertainty domain to those variables which are very important. This further helps in uncertainty quantification by accelerating the entire process. This state-of-the-art technical report provides a comprehensive review of classical sensitivity analysis techniques, followed by an in-depth review of all the related documents that implemented a full sensitivity analysis or partially adopted it for uncertainty quantification-related discussions. This review report on sensitivity analysis of reinforced concrete structures is a valuable contribution to the field of computational mechanics and earthquake engineering. This review highlights the importance of selecting an appropriate sensitivity analysis technique to achieve reliable results in structural analysis and design. By providing insights into the advantages and limitations of various sensitivity analysis techniques, this report can guide researchers, practitioners, and decision-makers in selecting the most appropriate technique for their specific applications. It is observed that the outcome of a sensitivity analysis depends heavily on the applied technique to perform the sensitivity assessment which eventually may cause a significant bias during the decision making. This report paves the road for better selection of a sensitivity analysis technique in problems related to structural and earthquake engineering. The findings of this review have significant implications for improving the accuracy and reliability of structural analysis, ultimately leading to safer and more resilient structures.

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“…To perform this research, information and assumptions are needed [28]. e Khorasan Regional Water Company was used to collect information about field visits and collect records and concentrations of particulate materials in previous floods [29]. e study area is the Ardak dam reservoir, located 60 km north of Mashhad in Khorasan Razavi Province (Figure 3).…”

Section: Data and Study Areamentioning

confidence: 99%

Application of Remote Sensing Technology in Sediment Estimating Entering the Dam Reservoirs due to Floods

Hadian

Mosaedi

2021

Shock and Vibration

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The present study aimed to use remote sensing technology to estimate the concentration of particulate materials in the water entering the reservoirs of dams and consequently investigate the possibility of estimating the amount of sediment carried to the reservoir by flood during the life of the dam and its annual estimate. Using an advanced spectrometer device (ASD), the reflectance values of water containing different amounts of particulate sediments were measured in the range of 400–2500 nm; then, these reflectance values were represented for the Landsat 8 satellite OLI bands using their spectral response functions. In the study of interband correlation with the number of particulate materials, band 2 (blue) and band 5 (near-infrared) were identified to prepare a specific and appropriate model. The specificity of the reflectance difference in the two abovementioned bands was presented as an exponential relationship between the concentration of particulate materials and spectral reflectance. In this model, the RMSE parameter for the maximum possible sediment concentration was equal to 1.57 and the parameter R2 was equal to 0.91. In the second step, at the same time as the satellite passed, the area was visited and the sediments of the Ardak dam reservoir were sampled by recording their location. To complete this research, two measures were performed simultaneously, calculating the concentration of particulate materials sampled in the laboratory environment and their location on the image. Then, the number of particulate materials is estimated by taking into account the coordinates recorded from the images on which the relevant corrections have been made. According to the extracted exponential model, the results of estimating the concentration of particulate matter obtained from the model and Landsat satellite images with the concentration of particulate matter obtained from sampling showed its complete compatibility with field surveys to validate this research.

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On the Dynamic Capacity of Concrete Dams

Cited by 12 publications

References 48 publications

Comprehensive Assessment of the Effect of Water Pressure on the Development of Cracks in Gravity Concrete Dams

Comprehensive Assessment of the Effect of Water Pressure on the Development of Cracks in Gravity Concrete Dams

Sensitivity analysis of reinforced concrete structures :

Application of Remote Sensing Technology in Sediment Estimating Entering the Dam Reservoirs due to Floods

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