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Analyses Of Interconnected Systems Accounting For Spatial Variability Of Ground Motions And Soil Structure Interaction
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Book Synopsis Analyses of Interconnected Systems Accounting for Spatial Variability of Ground Motions and Soil-structure Interaction by : Petros Gevork Keshishian
Download or read book Analyses of Interconnected Systems Accounting for Spatial Variability of Ground Motions and Soil-structure Interaction written by Petros Gevork Keshishian and published by . This book was released on 2001 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Developments in Dynamic Soil-Structure Interaction by : Polat Gülkan
Download or read book Developments in Dynamic Soil-Structure Interaction written by Polat Gülkan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the last couple of decades it has been recognized that the foundation material on which a structure is constructed may interact dynamically with the structure during its response to dynamic excitation to the extent that the stresses and deflections in the system are modified from the values that would have been developed if it had been on a rigid foundation. This phenomenon is examined in detail in the book. The basic solutions are examined in time and frequency domains and finite element and boundary element solutions compared. Experimental investigations aimed at correlation and verification with theory are described in detail. A wide variety of SSI problems may be formulated and solved approximately using simplified models in lieu of rigorous procedures; the book gives a good overview of these methods. A feature which often lacks in other texts on the subject is the way in which dynamic behavior of soil can be modeled. Two contributors have addressed this problem from the computational and physical characterization viewpoints. The book illustrates practical areas with the analysis of tunnel linings and stiffness and damping of pile groups. Finally, design code provisions and derivation of design input motions complete this thorough overview of SSI in conventional engineering practice. Taken in its entirety the book, authored by fifteen well known experts, gives an in-depth review of soil-structure interaction across a broad spectrum of aspects usually not covered in a single volume. It should be a readily useable reference for the research worker as well as the advance level practitioner. (abstract) This book treats the dynamic soil-structure interaction phenomenon across a broad spectrum of aspects ranging from basic theory, simplified and rigorous solution techniques and their comparisons as well as successes in predicting experimentally recorded measurements. Dynamic soil behavior and practical problems are given thorough coverage. It is intended to serve both as a readily understandable reference work for the researcher and the advanced-level practitioner.
Book Synopsis Effects of Soil Spatial Variability on Soil-structure Interaction by : Arash Nobahar
Download or read book Effects of Soil Spatial Variability on Soil-structure Interaction written by Arash Nobahar and published by . This book was released on 2003 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Spatial Variation of Ground Motions on Large Multiple Supported Structures by : Hong Hao
Download or read book Effects of Spatial Variation of Ground Motions on Large Multiple Supported Structures written by Hong Hao and published by . This book was released on 1989 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil-Structure Interaction: Numerical Analysis and Modelling by : J.W. Bull
Download or read book Soil-Structure Interaction: Numerical Analysis and Modelling written by J.W. Bull and published by CRC Press. This book was released on 2002-11-01 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how a number of different methods of analysis and modelling, including the boundary element method, the finite element method, and a range of classical methods, are used to answer some of the questions associated with soil-structure interaction.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil-structure Interaction Analysis Using High-performance Parallel Computation by : Georgios Petropoulos
Download or read book Soil-structure Interaction Analysis Using High-performance Parallel Computation written by Georgios Petropoulos and published by . This book was released on 2008 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling of the Soil-structure Interaction: by : Todor Zhelyazov
Download or read book Modeling of the Soil-structure Interaction: written by Todor Zhelyazov and published by . This book was released on 2020 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides discussion and presents results related to some "hot topics," all dealing with the soil-structure interaction. The book can be of interest to both scientists involved in academic studies of the problems addressed and for practitioners engaged in high-level design.Chapter I reports the investigation of non-stationary wave propagation in continuously inhomogeneous cylindrical elements (such as pipelines). New results obtained by numerical analysis of non-stationary wave propagation are presented. The cases studied comprise simulations of the propagations of both one-dimensional and two-dimensional non-stationary waves. Waves of the first type are supposed to propagate in continuously inhomogeneous, linearly viscoelastic cylinders, whereas waves of the second type propagate in continuously inhomogeneous elastic cylinders. The authors of this chapter apply an original research method consisting of the implementation of solutions to dynamic problems in the study of elastic and linearly viscoelastic piecewise homogeneous bodies.Chapter II outlines an analytical study of the propagation of different types of waves (plane, cylindrical, spherical) as well as of the waves' interaction with an element of Vibro-isolation (specifically, a three-layer plate). The author also presents the numerical results of the study of the distribution of the vibration accelerations in soil.Chapter III presents details on the analytical modeling of a bearing device for passive seismic isolation (friction-pendulum system). The behavior of the slider is identical to a motion of a particle constrained to slide on a spherical surface. The analytical model includes equations of motion, derived using the Lagrange formalism and constitutive equations of the sliding interface. The author presents the results of the numerical simulation of the response of the bearing device to a seismic event, assuming a constant value of the friction coefficient.Chapter IV proposes a discussion on the assessment of the load-carrying capacity of a metal-resin anchor and the determination of dependencies between parameters of supporting systems that include anchors. The solution to the problems addressed in this study involves an accurate analysis of the load transfer mechanisms between different system components. The proposed strategy requires the implementation of an algorithm aimed at the reconstruction of the analytical form of a function, provided its tabular form is available. The authors also formulate a theorem that postulates the existence of such representation applicable in a more general context.The research object in Chapter V is the formulation of the boundary value problems for circular and annular three-layer plates subjected to axisymmetric loading. The considered plates consist of three layers: two thin bearing layers and one filler layer, with a perfect bond, assumed for all interfaces. The definition of the stress-strain state in the plates presumes that the Kirchhoff's hypotheses regarding the bearing layers and the Timoshenko's hypothesis (i.e., linear distribution of the tangential displacements over the thickness) concerning the filler layer hold. The performed analyses take into account the characteristics of the elastic (Winkler) foundation. The authors provide the obtained analytical solutions to the formulated boundary value problems. Results obtained by numerical analysis of the stress and the strain distributions for plates supported by hinges on the contour are also presented.
Book Synopsis Physical and Numerical Simulations of Soil-Structure Interaction by : Chandrakanth Bolisetti
Download or read book Physical and Numerical Simulations of Soil-Structure Interaction written by Chandrakanth Bolisetti and published by . This book was released on 2011 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the seismic performance assessment of new and retrofit structures it is important to consider the effects of soil-structure interaction. Several numerical methods of varying complexity and accuracy have been used to evaluate these effects in practice, including the numerical programs, SHAKE and SASSI, which perform ground response analysis using an equivalent linear method, and soil-structure interaction analysis using a frequency-domain substructuring method, respectively. This study involves the assessment of these programs using a database of building responses recorded from a centrifuge test performed at the NEES@UCDavis centrifuge facility, as a part of the NEES City Block project. The centrifuge test involves shaking of two isolated, small-scale building models placed on dry Nevada sand, whose counterparts at the prototype scale are representative of typical low- to medium-rise SMRF buildings situated in downtown Los Angeles. Seventeen ground motions with increasing damage potential are applied to the models. Three of these seventeen excitations are simulated using the programs SHAKE and SASSI to calculate the free-field response of the soil, and the response of the soil-structure systems, respectively. These three ground motions include a low, medium and high intensity motion. Soil-structure interaction effects are calculated from the responses, and a comparison is made between the numerical results and experimental observations. The numerical predictions for the low intensity motion are good. For the higher intensity motions, the nonlinear response of both the soil and the structures was only captured approximately. SSI calculations are also carried out using the simplified procedures of ASCE 7-10 and FEMA 440, and results are compared with the experimental observations.
Book Synopsis Validation of Soil-structure Interaction Analysis Methods by : JiinSong Tsai
Download or read book Validation of Soil-structure Interaction Analysis Methods written by JiinSong Tsai and published by . This book was released on 1990 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil-structure Interaction Effects for Laterally Excited Liquid-tank System by :
Download or read book Soil-structure Interaction Effects for Laterally Excited Liquid-tank System written by and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following a brief review of the mechanical model for liquid-storage tanks which permits consideration of the effects of tank and ground flexibility, and lateral and rocking base excitations, the effects of both kinematic and inertia interaction effects on the response of the tank-liquid system are examined and elucidated. The free-field motion is defined by a power spectral density function and an incoherence function, which characterizes the spatial variability of the ground motion due to the vertically incident incoherence waves. The quantities examined are the ensemble means of the peak values of the response. The results are compared with those obtained for no soil-structure interaction and for kinematic interaction to elucidate the nature and relative importance of the two interactions. Only the impulsive actions are examined, the convective actions are for all practical purposes unaffected by both kinematic and inertia interactions. It is shown that the major reduction of the response is attributed to inertia interaction. 20 refs.
Book Synopsis Geostatistical and Network Analysis of Non-stationary Spatial Variation in Ground Motion Amplitudes by : Yilin Chen
Download or read book Geostatistical and Network Analysis of Non-stationary Spatial Variation in Ground Motion Amplitudes written by Yilin Chen and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: When an earthquake causes shaking in a region, the amplitude of shaking varies spatially. Ground motion models have been developed to predict the median and standard deviation of ground motion intensity measures. However, the remaining variation in ground motion prediction ``residuals'' is significant, and shows spatial correlations at scales of tens of kilometers in separation distance. These correlations are important when assessing the risk to spatially distributed infrastructure or portfolios of properties. State of the art today is to assume that these spatial correlations depend mainly on separation distance (stationarity assumption). This dissertation aims to advance spatial correlation models of ground motions, by conducting a comprehensive correlation study on various data sets, evaluating key assumptions of current models, and proposing a novel framework for modeling spatial correlations. First, this dissertation proposes a method of site-specific correlation estimation and techniques for quantifying non-stationary spatial variations. Applying these methods to various data sets, factors related to non-stationary spatial correlations are investigated. Using physics-based ground motion simulations, it studies the dependency of non-stationary spatial correlations on source effects, path effects, and relative location to rupture. Using data from recent well-recorded earthquakes in New Zealand, it analyzes site-specific and region-specific correlations in ground motion amplitude for Wellington and Christchurch, and observed strong non-stationarity in spatial correlations. Results suggest that heterogeneous geologic conditions appear to be associated with the non-stationary spatial correlation. Second, this dissertation formulates a framework for detecting and modeling non-stationary correlations. By utilizing network analysis techniques, it proposes a community detection algorithm to find regions in spatial data with higher correlations. Applying this algorithm to physics-based ground motion simulations, it detects communities of earthquake stations with high correlation to uncover underlying reasons for non-stationarity in spatial correlations. Factors associated with the communities of high correlation are identified. Results suggest that communities of high correlation in ground shaking tend to be associated with common geological conditions and relative location along the rupture strike direction. In addition, it applies the algorithm to a mixed-source data set from the simulations, and compares correlation characteristics of simulations and instrumental data. Results suggest that the mixed-source data tend to average out the non-stationary influence of source and path effects from a single rupture. Finally, this dissertation presents a framework for quantifying uncertainty in the estimation of correlations, and true variability in correlations from earthquake to earthquake. A procedure for evaluating estimation uncertainty is proposed and used to evaluate several methods that have been used in past studies to estimate correlations. The proposed procedure is also used to distinguish between estimation uncertainty and the true variability in model parameters that exist in a given data set. Results suggest that a Weighted Least Squares fitting method is most effective for correlation model estimation. Fitted correlation model parameters are shown to have substantial estimation uncertainty even for well-recorded earthquakes, and underlying true variability is relatively stable among well-recorded and poorly recorded earthquakes.
Book Synopsis A System for Analysis of Soil-structure Interaction by : John Lysmer
Download or read book A System for Analysis of Soil-structure Interaction written by John Lysmer and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstract Journal in Earthquake Engineering by :
Download or read book Abstract Journal in Earthquake Engineering written by and published by . This book was released on 1980 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Track-Bridge Interaction on High-Speed Railways by : Rui Calcada
Download or read book Track-Bridge Interaction on High-Speed Railways written by Rui Calcada and published by CRC Press. This book was released on 2008-09-23 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of high-speed railways includes a wide variety of aspects, ranging from safety to new types of equipment and construction solutions. All these require state-of-art technologies, and in recent years design concepts for high-speed railways have improved. The focus in this volume is on the interaction between rail track and bridg
Download or read book Geotechnical Abstracts written by and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary by : United States. Federal Emergency Management Agency
Download or read book NEHRP Recommended Provisions (National Earthquake Hazards Reduction Program) for Seismic Regulations for New Buildings and Other Structures: Commentary written by United States. Federal Emergency Management Agency and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
