Download or read book Seismic Performance Analysis of Concrete Gravity Dams written by Gaohui Wang and published by Springer Nature. This book was released on 2020-07-10 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book evaluates the seismic performance of concrete gravity dams, considering the effects of strong motion duration, mainshock-aftershock seismic sequence, and near-fault ground motion. It employs both the extended finite element method (XFEM) and concrete damaged plasticity (CDP) models to characterize the mechanical behavior of concrete gravity dams under strong ground motions, including the dam-reservoir-foundation interaction. In addition, it discusses the effects of the initial crack, earthquake direction, and cross-stream seismic excitation on the nonlinear dynamic response to strong ground motions, and on the damage-cracking risk of concrete gravity dams. This book provides a theoretical basis for the seismic performance evaluation of high dams, and can also be used as a reference resource for researchers and graduate students engaged in the seismic design of high dams.
Download or read book Earthquake Analysis and Response of Concrete Gravity Dams Including Base Sliding written by Juan W. Chavez and published by . This book was released on 1994 with total page 216 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 Earthquake Engineering for Concrete Dams written by National Research Council and published by National Academies Press. This book was released on 1991-02-01 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hazard posed by large dams has long been known. Although no concrete dam has failed as a result of earthquake activity, there have been instances of significant damage. Concerns about the seismic safety of concrete dams have been growing recently because the population at risk in locations downstream of major dams continues to expand and because the seismic design concepts in use at the time most existing dams were built were inadequate. In this book, the committee evaluates current knowledge about the earthquake performance of concrete dams, including procedures for investigating the seismic safety of such structures. Earthquake Engineering for Concrete Dams specifically informs researchers about state-of-the-art earthquake analysis of concrete dams and identifies subject areas where additional knowledge is needed.
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 Analysis and Response of Concrete Arch Dams written by Hanchen Tan and published by . This book was released on 1995 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Analysis and Response of Concrete Arch Dams written by Ka-lun Fok and published by . This book was released on 1985 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Earthquake Response of Concrete Gravity Dams written by N. Pal and published by . This book was released on 1974 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical model is proposed for the mechanical properties -- constitutive relation and strength -- of concrete subject to dynamic cyclic reversible stresses and strains that may occur in gravity dams subjected to earthquake ground motion. The model describes properties of concrete under a two-dimensional state of stress. The effects of strain rate -- the time rate of change of strain -- on the mechanical properties are incorporated in the model. Experimental results available in the literature form the basis for the proposed model. A method is developed for nonlinear analysis of response of concrete gravity dams to earthquake ground motion wherein mechanical properties of concrete are defined by the mathematical model mentioned above. Earthquake analyses reveal that cracking of concrete is confined to areas near the upstream and downstream faces of dams -- especially in the upper parts and in some cases also near the heel. The estimated cracking is very sensitive to the assumed tensile strength.
Download or read book Seismic Safety Evaluation of Concrete Dams written by Chong Zhang and published by Elsevier. This book was released on 2014-10-23 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: The consequences of a large dam failing can be disastrous. However, predicting the performance of concrete dams during earthquakes is one of the most complex and challenging problems in structural dynamics. Based on a nonlinear approach, Seismic Safety Evaluation of Concrete Dams allows engineers to build models that account for nonlinear phenomena such as vertical joint slippage, cracks, and cavitation. This yields more accurate estimates. Advanced but readable, this book is the culmination of the work carried out by Tsinghua University Research Group on Earthquake Resistance on Dams over the last two decades. Nonlinearity characteristics of high concrete dams, seismic analysis methods, evaluation models A systematic approach to nonlinear analysis and seismic safety evaluation of concrete dams Includes nonlinear fracture of dam-water-foundation interaction system, dynamic fluid-structure Covers soil-structure interactions, and meso-scale mechanical behavior of concrete are all international front issues of the field
Download or read book Scrutinizing the Response of Concrete Gravity Dams to Earthquake Loading written by Biju P N and published by Mohd Abdul Hafi. This book was released on 2024-04-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dams are constructed for storing water for the irrigation, water supply, generation of electricity or combination of above. The civilization starts from the bank of rivers and human beings thought of storage of water as it is the basic need of human beings. The dry and wet season of the nature forced for the construction of dams. As the society develops, the requirement of water becomes an essential part of human life. It also becomes a part of basic need of industrial development. Hence more thinking in that field leads to the construction of more dams. The dams in earlier period were constructed of earth and it has its own limitation and it is difficult to satisfy the stability criteria and more susceptible to overtopping. Then turned to the masonry construction. Due to the limited material availability and the huge cross section, masonry dams also have limitations. After the invention of cement, more concrete gravity dams were constructed for the storage of huge quantity of water. At the infant stages the design consideration was based on simple static analysis. But in real situation ground acceleration are happening due to the earthquakes. This may cause failure of dam structures. Hence more study was initiated in that field for understanding the behaviour of dam structures to earthquake loading. Though dynamic analysis and design has given the answer to the safety aspects of concrete gravity dams to a certain extent, but still pending more to explain. The dam
Download or read book Simplified Analysis for Earthquake Resistant Design of Concrete Gravity Dams written by Gregory L. Fenves and published by . This book was released on 1986 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Base Sliding Response of Concrete Gravity Dams to Earthquakes written by Anil K. Chopra and published by . This book was released on 1991 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response Spectrum Analysis of Concrete Gravity Dams Including Dam water foundation Interaction written by Arnkjell Løkke and published by . This book was released on 2013 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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).
