Download or read book A Computer Program for Earthquake Analysis of Gravity Dams Including Hydrodynamic Interaction written by P. Chakrabarti and published by . This book was released on 1973 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer program for earthquake analysis of gravity dams including effects of hydrodynamic interaction is presented. The dam-water system is idealized as two-dimensional in geometry, the material behavior is assumed to be linearly elastic, and the transverse horizontal as well as the vertical component of ground motion are considered. The dam is represented as a finite element system, whereas water in the reservoir is treated as a continum of infinite length in the upstream direction governed by the wave equation. Compressibility of water is considered resulting in governing equations for the dam depending on the excitation frequency. The analysis is performed in the frequency domain, first obtaining the frequency responses and then Fourier Synthesizing them by Fast Fourier Transform procedures to obtain responses to arbitrary ground motion. A listing of the computer program is included and the usage and capabilities are illustrated by examples. (Author).
Download or read book A Computer Program for Earthquake Analysis of Gravity Dams Including Hydrodynamic Interaction written by Parthasarathi Chakrabarti and published by . This book was released on 1973 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EADHI written by P. Chakrabarti and published by . This book was released on 1973 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Response of Concrete Gravity Dams Including Hydrodynamic and Foundation Interaction Effects written by Anil K. Chopra and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: A general procedure for analysis of the response of concrete gravity dams, including the dynamic effects of impounded water and flexible foundation rock, to the transverse (horizontal) and vertical components of earthquake ground motion is presented. The problem is reduced to one in two dimensions, considering the transverse vibration of a monolith of the dam. The system is analyzed under the assumption of linear behavior for the concrete, foundation rock and water. The complete system is considered as composed of three substructures -- the dam, represented as a finite element system, the fluid domain, as a continuum of infinite length in the upstream direction, and the foundation rock region as a viscoelastic halfplane. The structural displacements of the dam are expressed as a linear combination of Ritz vectors, chosen as normal modes of an associated undamped dam-foundation system. The effectiveness of this analytical formulation lies in its being able to produce excellent results by considering only a few Ritz vectors. The modal displacements due to earthquake motion are computed by synthesizing their complex frequency responses using Fast Fourier Transform procedures. The stress responses are calculated from the modal displacements. An example analysis is presented to illustrate results obtained from this analytical procedure. Computation times for several analyses are presented to illustrate effectiveness of the procedure.
Download or read book EAGD 84 written by Gregory L. Fenves and published by . This book was released on 1984 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Response of Gravity Dams Including Reservoir Interaction Effects written by P. Chakrabarti and published by . This book was released on 1972 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Influence of hydrodynamic interaction on the dynamic behavior of dams is reduced to two dimensions; the material behavior is assumed to be linearly elastic. For analysis in the frequency domain, the system is considered as two substructures: (1) the dam as a finite element system and (2) the reservoir's fluid as a continuum of infinite length upstream governed by the wave equation. The displacements of the dam including hydrodynamic effects are expressed in linear combination of the modes of vibration of the dam with the reservoir empty. The analysis produces exact results if all modes of vibration are included; however it effectively produces excellent results by considering only the first few modes, thus drastically reducing the number of unknowns. Numerical results for complex frequency responses and responses to earthquake ground motions show: (1) hydrodynamic interaction and compressibility of water must be considered to obtain accurate results for the periods of vibration and response to earthquakes, (2) water in the reservoir significantly increases the lateral displacements from earthquake motion; however, the stresses may not increase, depending on the ground motion frequency characteristics, and (3) compared to many classes of structures, the vertical component of ground motion is more important in the response of gravity dams.
Download or read book Seismic Analysis of Gravity Dams written by Robert A. Cole and published by . This book was released on 1986 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated methods for analyzing the stability of concrete gravity dams with respect to tensile cracking under the dynamic loadings caused by earthquakes. The effects of the interaction of hydrodynamic and inertial loads were investigated by comparing the evaluation of each method of analysis with the results produced by the well-known program EADHI. A new simplified method of analysis was developed using the finite element method of analysis to determine the dam's inertial response along with Chopra's simplified procedure for estimating the hydrodynamic loading. This new approach was implemented in a user-friendly computer program. The program was tested against a wide variety of problems and found to produce acceptable results. A sample run using this program via the time-sharing system on the WES computer is included in this report along with the results of the evaluations and a listing of the program. Keywords: Dams; Dynamic response; Earthquake engineering; Finite element analysis; Gravity dam stability.
Download or read book A Computer Program for Earthquake Analysis of Dams written by Anil K. Chopra and published by . This book was released on 1970 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: A general computer program based on the finite element method of analysis of linearly elastic dam cross-sections subjected to earthquakes is presented. It is applicable to the analysis of concrete gravity dams and earth dams. This program utilizes a recently developed plane stress quadrilateral element, and the equations of motion are solved by the mode superposition method using the fastest known subroutines for computation of eigenvalues and eigenvectors. The FORTRAN IV listing of the program is included and the usage and capabilities of the program are illustrated by examples. (Author).
Download or read book EACD 3D written by Ka-lun Fok and published by . This book was released on 1986 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Analysis and Response of Concrete Gravity Dams written by Gregory L. Fenves and published by . This book was released on 1984 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Engineering for Concrete Dams written by Anil K. Chopra and published by John Wiley & Sons. This book was released on 2020-03-16 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to modern-day methods for earthquake engineering of concrete dams Earthquake analysis and design of concrete dams has progressed from static force methods based on seismic coefficients to modern procedures that are based on the dynamics of dam–water–foundation systems. Earthquake Engineering for Concrete Dams offers a comprehensive, integrated view of this progress over the last fifty years. The book offers an understanding of the limitations of the various methods of dynamic analysis used in practice and develops modern methods that overcome these limitations. This important book: Develops procedures for dynamic analysis of two-dimensional and three-dimensional models of concrete dams Identifies system parameters that influence their response Demonstrates the effects of dam–water–foundation interaction on earthquake response Identifies factors that must be included in earthquake analysis of concrete dams Examines design earthquakes as defined by various regulatory bodies and organizations Presents modern methods for establishing design spectra and selecting ground motions Illustrates application of dynamic analysis procedures to the design of new dams and safety evaluation of existing dams. Written for graduate students, researchers, and professional engineers, Earthquake Engineering for Concrete Dams offers a comprehensive view of the current procedures and methods for seismic analysis, design, and safety evaluation of concrete dams.
Download or read book Numerical Analysis of Dams written by Gabriella Bolzon and published by Springer Nature. This book was released on 2020-10-18 with total page 899 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers contributions from the 15th ICOLD Benchmark Workshop on Numerical Analysis of Dams. The workshop provided an opportunity for engineers, researchers and operators to present and exchange their experiences and the latest advances in numerical modelling in the context of the design, performance and monitoring of dams. Covering various aspects of computer analysis tools and safety assessment criteria, and their development over recent decades, the book is a valuable reference resource for those in the engineering community involved in the safety, planning, design, construction, operation and maintenance of dams.
Download or read book Shock and Vibration Computer Programs written by Barbara Pilkey and published by . This book was released on 1975 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Software for Earthquake Engineering written by and published by . This book was released on 1987 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Engineering Research Center Library Printed Catalog written by University of California, Berkeley. Earthquake Engineering Research Center. Library and published by . This book was released on 1975 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Small Dams written by and published by . This book was released on 1987 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Earthquake Analysis of Concrete Gravity Dams Including Sliding written by Juan Walter Magno Chávez Zegarra and published by . This book was released on 1993 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
