Dynamic Response Characteristics Of A Model Arch Dam
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Dynamic Response Characteristics Of A Model Arch Dam
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Author : Charles D. Norman
language : en
Publisher:
Release Date : 1976
Dynamic Response Characteristics Of A Model Arch Dam written by Charles D. Norman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Concrete dams categories.
Vibration tests were conducted on a 1:24-scale model of the North Fork Dam (Near Auburn, Calif.), a double-curvature arch dam, to determine natural frequencies, mode shapes, and hydrodynamic pressures. The mode shapes, natural frequencies, and hydrodynamic pressures were determined from tests using two-vibrators mounted on the crest of the dam. Hydrodynamic pressures at the dam-reservoir interface were also determined from tests in which the vibrator was attached to the downstream foundation of the dam. The hydrodynamic pressures calculated using Westergaard;s theory and a theory for arch dams developed by Perumalswami and Kar accurately predicted the measured pressure at frequencies below the first mode frequency of the dam. The differences in the two theories were insignificant. The accuracy of the Ritz analysis improved considerably as more nodes in flexible regions of the dam were loaded. However, the lowest eigenvalues were computed using the subspace iteration method. For the full reservoir, the natural frequencies decreased by 20-30% when the foundation was included in the finite element model. The difference was less when the reservoir was empty. The calculations using the subspace iteration scheme and including the foundation agreed closely with experimental mode shapes and corresponding natural frequencies.
Dynamic Response Of Simple Arch Dams Including Hydrodynamic Interaction
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Author : Craig S. Porter
language : en
Publisher:
Release Date : 1980
Dynamic Response Of Simple Arch Dams Including Hydrodynamic Interaction written by Craig S. Porter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Arch dams categories.
Dynamic Response Of Embankment Concrete Gravity And Arch Dams Including Hydrodynamic Interaction
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Author : John F. Hall
language : en
Publisher:
Release Date : 1980
Dynamic Response Of Embankment Concrete Gravity And Arch Dams Including Hydrodynamic Interaction written by John F. Hall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Barrages categories.
Reservoir Interaction Effects On The Dynamic Response Of Arch Dams
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Author : Ray W. Clough
language : en
Publisher:
Release Date : 1982
Reservoir Interaction Effects On The Dynamic Response Of Arch Dams written by Ray W. Clough and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Arch dams categories.
Hydrodynamic Effects In Dynamic Response Of Simple Arch Dams
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Author : Craig S. Porter
language : en
Publisher:
Release Date : 1980*
Hydrodynamic Effects In Dynamic Response Of Simple Arch Dams written by Craig S. Porter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980* with Arch dams categories.
Hydrodynamic Effects In Dynamic Response Of Arch Dams
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Author : Craig Stuart Porter
language : en
Publisher:
Release Date : 1980
Hydrodynamic Effects In Dynamic Response Of Arch Dams written by Craig Stuart Porter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Dissertations, Academic categories.
On The Nonlinear Dynamic Response Of Arch Dams To Earthquakes
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Author : James Shaw-Han Kuo
language : en
Publisher:
Release Date : 1982
On The Nonlinear Dynamic Response Of Arch Dams To Earthquakes written by James Shaw-Han Kuo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Validation Of Dynamic Analyses Of Dams And Their Equipment
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Author : Jean-Jacques Fry
language : en
Publisher: CRC Press
Release Date : 2018-06-27
Validation Of Dynamic Analyses Of Dams And Their Equipment written by Jean-Jacques Fry and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-27 with Technology & Engineering categories.
Validation of Dynamic Analyses of Dams and Their Equipment is the outcome of a three year cooperation program between CFBR (Comite Francais des Barrages et Reservoirs or French Committee on Large dams) and JCOLD (Japan Commission on Large Dams), and focusses on the dynamic behavior of concrete and embankment dams analyzed based on acceleration records of the JCOLD data base. The book covers a broad range of topics, including simplified and detailed methods of dynamic analysis for the seismic response of concrete and embankment dams compared with measured behavior. The response of embankment dams subjected to a 1.0 g foundation acceleration time history is computed by several analytical methods and compared. The modelling of stress-strain behavior of compacted soils for seismic stability analysis of earth-fill dams and its application for a failed earthfill dam is described. The cracking of the face slab of four faced rockfill dams during earthquakes is analyzed. The seismic behavior of concrete arch dams is discussed by the comparison of numerical and experimental results. Displacement-based seismic assessment of concrete dams is presented. Finally the book contains a comparison between the Japanese and French design criteria of gates and a comparison of the analysis of gates and field measurements. Validation of Dynamic Analyses of Dams and Their Equipment will be useful to professional and academics involved or interested in dam engineering.
Comparison Of Vibration Test Results For A Model And Prototype Arch Dam
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Author : Roger D. Crowson
language : en
Publisher:
Release Date : 1977
Comparison Of Vibration Test Results For A Model And Prototype Arch Dam written by Roger D. Crowson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Arch dams categories.
Vibration tests were conducted on both the prototype and a 1:24-scale model of the North Fork Dam, a double curvature arch dam, to determine natural frequencies, mode shapes, damping ratios, and hydrodynamic pressures. Two vibrators mounted on the crest of the dam were used as input excitation sources for both series of tests. Electromagnetic shakers capable of a 40-lb output were used in the model tests, while counterrotating, eccentric mass exciters capable of a 5000-lb output were employed for the prototype. Velocities were measured along the crest and downstream face of the model, whereas accelerations were measured in the same locations on the prototype. Measurements in both curves were taken at the dam-reservoir interface while the structures were excited at resonant frequencies. Damping in both model and prototype ranged from approximately 2 to 5 percent of critical. These values are consistent with structural damping values for these types of structures.
An Introduction To Earthquake Response Analysis Of Arch Dams For Professional Engineers
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Author : J. Paul Guyer, P.E., R.A.
language : en
Publisher: Guyer Partners
Release Date : 2021-11-07
An Introduction To Earthquake Response Analysis Of Arch Dams For Professional Engineers written by J. Paul Guyer, P.E., R.A. and has been published by Guyer Partners this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-07 with Technology & Engineering categories.
Introductory technical guidance for civil engineers and other professional engineers and construction managers interested in earthquake analysis of arch dams. Here is what is discussed: 1. INTRODUCTION, 2. GEOLOGICAL-SEISMOLOGICAL INVESTIGATION, 3. DESIGN EARTHQUAKES, 4. EARTHQUAKE GROUND MOTIONS, 5. FINITE ELEMENT MODELING FACTORS AFFECTING DYNAMIC RESPONSE, 6. METHOD OF ANALYSIS, 7. EVALUATION AND PRESENTATION OF RESULTS.