Finite Element Response Sensitivity And Reliability Analysis Of Soil Foundation Structure Interaction Sfsi Systems

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Finite Element Response Sensitivity and Reliability Analysis of Soil-Foundation-Structure-Interaction (SFSI) Systems

Author : Quan Gu
Publisher :
ISBN 13 :
Total Pages : 594 pages
Book Rating : 4.:/5 (213 download)

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Book Synopsis Finite Element Response Sensitivity and Reliability Analysis of Soil-Foundation-Structure-Interaction (SFSI) Systems by : Quan Gu

Download or read book Finite Element Response Sensitivity and Reliability Analysis of Soil-Foundation-Structure-Interaction (SFSI) Systems written by Quan Gu and published by . This book was released on 2008 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance-based earthquake engineering (PBEE) has emerged as a powerful method of analysis and design philosophy in earthquake engineering and is leading the way to a new generation of seismic design guidelines. PBEE requires a comprehensive understanding of the earthquake response of Soil-Foundation-Structure-Interaction (SFSI) systems when damage occurs in the structural system during the earthquake. In the context of PBEE, this research combines finite element (FE) modeling and seismic response analysis of SFSI systems with state-of-the-art methods in response sensitivity and reliability analysis. New analytical and numerical methods are developed and existing algorithms adopted for studying the propagation of uncertainties in nonlinear static and dynamic analyses of SFSI systems and for probabilistic performance assessment of these systems. This research makes several contributions to reliability analysis of structural and SFSI systems. For the purpose of accurately and efficiently computing the response gradients, an 'exact' FE response sensitivity computation algorithm based on the Direct Differentiation Method (DDM) and available in the widely used FE analysis software framework OpenSees is further extended to various types of material models, finite elements and multi-point constraint equations used in modeling large-scale realistic SFSI systems. As a main contribution to this research, this sensitivity algorithm is extended to a multi-yield surface J2 plasticity model used extensively to model clay soil materials in seismic response analysis. Related to response sensitivity analysis of SFSI systems, several issues are studied, such as discontinuities in response sensitivities, the relative importance of various soil and structural material parameters in regards to a specified aspect of the system response (i.e., response parameters). As contributions to the reliability analysis of structural and SFSI systems, several existing solution tools such as first-order reliability method (FORM), second-order reliability method (SORM), and various sampling techniques, such as importance sampling (IS) and orthogonal plane sampling (OPS), are implemented in OpenSees and/or further improved to solving reliability analysis problems of structural and SFSI systems. A powerful general-purpose optimization toolbox SNOPT, developed by Professor Philip Gill at UCSD, is integrated into the reliability analysis framework in OpenSees and customized for efficiently finding the design point(s) of structural and SFSI systems. For time variant reliability analysis, an existing mean upcrossing rate analysis algorithm is implemented in OpenSees and improved. It is found that the FORM approximation for mean upcrossing rate is significantly inaccurate, especially in cases of highly nonlinear response behavior of the system analyzed. In such case, the OPS method based on the design point(s) of the reliability problem significantly improves the FORM approximation of the mean upcrossing rate and therefore of the upper bound of the failure probability. In order to study the topology of limit-state surfaces (LSS) for reliability problems, a new visualization method called Multi-dimensional Visualization in Principal Plane (MVPP) is developed and implemented in OpenSees. The geometrical insight gained from the MVPP has led to the development of a new hybrid computational reliability method, called the DP-RS-Sim method, which combines the design point (DP) search, the response surface methodology (RS), and simulation techniques (Sim). This method is applied for the time invariant reliability analysis of a realistic nonlinear structural system. Several other closely related topics are studied. A simplified probabilistic response analysis method is developed taking advantage of DDM-based response sensitivity analysis. This method is then applied to a nonlinear structural and SFSI system. It is much more efficient than the crude Monte Carlo Simulation method and provides, at low computational cost, good estimates of the mean and standard deviation of the response for low to moderate level of material nonlinearity in the response. A general-purpose OpenSees-SNOPT based optimization framework was developed and applied to soil model updating problems using numerically simulated data. It is found that the optimization process is significantly more efficient when using the DDM-based over the FDM-based sensitivities. Additionally, nonlinear FE model updating is performed for an actual site, the Lotung downhole array in Taiwan, and based on data recorded during a 1986 earthquake.

Soil-Foundation-Structure Interaction

Author : Rolando P. Orense
Publisher : CRC Press
ISBN 13 : 0203838203
Total Pages : 258 pages
Book Rating : 4.2/5 (38 download)

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Book Synopsis Soil-Foundation-Structure Interaction by : Rolando P. Orense

Download or read book Soil-Foundation-Structure Interaction written by Rolando P. Orense and published by CRC Press. This book was released on 2010-07-20 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil-Foundation-Structure Interaction contains selected papers presented at the International Workshop on Soil-Foundation-Structure Interaction held in Auckland, New Zealand from 26-27 November 2009. The workshop was the venue for an international exchange of ideas, disseminating information about experiments, numerical models and practical en

Finite Element Response Sensitivity, Probabilistic Response and Reliability Analyses of Structural Systems with Applications to Earthquake Engineering

Download Finite Element Response Sensitivity, Probabilistic Response and Reliability Analyses of Structural Systems with Applications to Earthquake Engineering PDF Online Free

Author : Michele Barbato
Publisher :
ISBN 13 :
Total Pages : 590 pages
Book Rating : 4.:/5 (182 download)

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Book Synopsis Finite Element Response Sensitivity, Probabilistic Response and Reliability Analyses of Structural Systems with Applications to Earthquake Engineering by : Michele Barbato

Download or read book Finite Element Response Sensitivity, Probabilistic Response and Reliability Analyses of Structural Systems with Applications to Earthquake Engineering written by Michele Barbato and published by . This book was released on 2007 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: The geometric, mechanical, material and loading parameters used to define the mechanics-based finite element (FE) models of structural systems as well as their seismic input are characterized by significant uncertainties. The rational treatment of uncertainties in computational mechanics has been the object of increasing attention in recent years. Modern design codes indirectly account for parameter and model uncertainties in order to ensure satisfactory designs. Thus, in addition to accurate deterministic models, methods are needed to propagate uncertainties from the parameters defining the FE model of a structure to the engineering demand parameters. FE response sensitivities (RSs) to both model and loading parameters represent an essential ingredient in studying this complex uncertainty propagation. New RS algorithms based on the Direct Differentiation Method (DDM) are derived and implemented in general-purpose nonlinear structural analysis frameworks. The use of the DDM is extended to (1) force-based frame elements, (2) steel-concrete composite structures, and (3) three-field mixed FEs. In addition, the effects on RS continuity of using smooth versus non-smooth material constitutive models are thoroughly examined. An efficient simulation technique for an existing fully non-stationary stochastic earthquake ground motion model is developed. The definition of non-geometric spectral characteristics is extended to general complex-valued non-stationary stochastic processes. Closed-form approximate solutions of the first-passage problem are developed for single- and multi-degree-of-freedom linear elastic systems. First-order second-moment approximations of the first- and second-order statistics of the response of linear/nonlinear structural systems with random/uncertain parameters and subjected to quasi-static and/or dynamic load(s) are computed efficiently using DDM-based FE RSs. The probability of a structural response quantity exceeding a specified threshold level is obtained by using the First-Order Reliability Method in conjunction with the DDM-based FE RSs in the search for the Design Point(s) (DP). A new method, referred to as Multidimensional Visualization in the Principal Planes, is developed to explore the geometry of limit-state surfaces near the DP(s) in reduced-spaces defined by planes of major principal curvatures at the DP. A new hybrid reliability analysis method (DP search - Response Surface - Importance Sampling) is developed and tested. Based on pushover and time history analyses, examples of both time-invariant and time-variant reliability analysis of structural systems are presented to illustrate the probabilistic methods developed.

Statistical Methods for QTL Mapping

Author : Zehua Chen
Publisher : CRC Press
ISBN 13 : 0415669863
Total Pages : 944 pages
Book Rating : 4.4/5 (156 download)

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Book Synopsis Statistical Methods for QTL Mapping by : Zehua Chen

Download or read book Statistical Methods for QTL Mapping written by Zehua Chen and published by CRC Press. This book was released on 2013-11-01 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: While numerous advanced statistical approaches have recently been developed for quantitative trait loci (QTL) mapping, the methods are scattered throughout the literature. Statistical Methods for QTL Mapping brings together many recent statistical techniques that address the data complexity of QTL mapping. After introducing basic genetics topics and statistical principles, the author discusses the principles of quantitative genetics, general statistical issues of QTL mapping, commonly used one-dimensional QTL mapping approaches, and multiple interval mapping methods. He then explains how to use a feature selection approach to tackle a QTL mapping problem with dense markers. The book also provides comprehensive coverage of Bayesian models and MCMC algorithms and describes methods for multi-trait QTL mapping and eQTL mapping, including meta-trait methods and multivariate sequential procedures. This book emphasizes the modern statistical methodology for QTL mapping as well as the statistical issues that arise during this process. It gives the necessary biological background for statisticians without training in genetics and, likewise, covers statistical thinking and principles for geneticists. Written primarily for geneticists and statisticians specializing in QTL mapping, the book can also be used as a supplement in graduate courses or for self-study by PhD students working on QTL mapping projects.

Applications of Statistics and Probability in Civil Engineering

Author : Michael Faber
Publisher : CRC Press
ISBN 13 : 0203144791
Total Pages : 938 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Applications of Statistics and Probability in Civil Engineering by : Michael Faber

Download or read book Applications of Statistics and Probability in Civil Engineering written by Michael Faber and published by CRC Press. This book was released on 2011-07-15 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt: Under the pressure of harsh environmental conditions and natural hazards, large parts of the world population are struggling to maintain their livelihoods. Population growth, increasing land utilization and shrinking natural resources have led to an increasing demand of improved efficiency of existing technologies and the development of new ones. A

Nonlinear Finite Element Analysis of Dynamic Soil-foundation-structure Interaction

Author : Matthias Preisig
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (71 download)

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Book Synopsis Nonlinear Finite Element Analysis of Dynamic Soil-foundation-structure Interaction by : Matthias Preisig

Download or read book Nonlinear Finite Element Analysis of Dynamic Soil-foundation-structure Interaction written by Matthias Preisig and published by . This book was released on 2005 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Developments in Dynamic Soil-Structure Interaction

Author : Polat Gülkan
Publisher : Springer Science & Business Media
ISBN 13 : 9401117551
Total Pages : 446 pages
Book Rating : 4.4/5 (11 download)

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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.

Computational Structural Dynamics and Earthquake Engineering

Author : Manolis Papadrakakis
Publisher : CRC Press
ISBN 13 : 020388163X
Total Pages : 672 pages
Book Rating : 4.2/5 (38 download)

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Book Synopsis Computational Structural Dynamics and Earthquake Engineering by : Manolis Papadrakakis

Download or read book Computational Structural Dynamics and Earthquake Engineering written by Manolis Papadrakakis and published by CRC Press. This book was released on 2008-12-04 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing necessity to solve complex problems in Structural Dynamics and Earthquake Engineering requires the development of new ideas, innovative methods and numerical tools for providing accurate numerical solutions in affordable computing times. This book presents the latest scientific developments in Computational Dynamics, Stochastic Dynam

Finite Element Reliability and Sensitivity Methods for Performance-based Earthquake Engineering

Author : Terje Haukaas
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (321 download)

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Book Synopsis Finite Element Reliability and Sensitivity Methods for Performance-based Earthquake Engineering by : Terje Haukaas

Download or read book Finite Element Reliability and Sensitivity Methods for Performance-based Earthquake Engineering written by Terje Haukaas and published by . This book was released on 2004 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work in this report is motivated by the performance-based engineering approach advocated by PEER. A comprehensive, object-oriented software framework for finite element sensitivity and reliability analysis is developed. The work builds on the existing software OpenSees. The software framework is used to investigate and address challenges particular to nonlinear finite element reliability analysis. As a result, smoothed material models, modifications in existing search algorithms, and a search algorithm hitherto not used in reliability analysis are developed.

Finite Element Analysis of Seismic Response of Yielding System Structu

Author : Mohsen Saleh Asheghabadi
Publisher :
ISBN 13 : 9783659817823
Total Pages : 68 pages
Book Rating : 4.8/5 (178 download)

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Book Synopsis Finite Element Analysis of Seismic Response of Yielding System Structu by : Mohsen Saleh Asheghabadi

Download or read book Finite Element Analysis of Seismic Response of Yielding System Structu written by Mohsen Saleh Asheghabadi and published by . This book was released on 2016-01-09 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamics of Structure and Foundation - A Unified Approach

Author : Indrajit Chowdhury
Publisher : CRC Press
ISBN 13 : 1000833461
Total Pages : 427 pages
Book Rating : 4.0/5 (8 download)

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Book Synopsis Dynamics of Structure and Foundation - A Unified Approach by : Indrajit Chowdhury

Download or read book Dynamics of Structure and Foundation - A Unified Approach written by Indrajit Chowdhury and published by CRC Press. This book was released on 2008-12-18 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second part of this well-illustrated guide is dedicated to applications in various civil engineering problems related to dynamic soil-structure interaction, machine foundation and earthquake engineering. The book presents innovative, easy-to-apply, and practical solutions to various problems and difficulties that a design engineer will encounter. The book focuses on dynamic soil-structure interaction (DSSI), the analysis and design of machine foundations, and the analytical and design concepts for earthquake engineering.

Soil Dynamics and Foundation Modeling

Author : Junbo Jia
Publisher : Springer
ISBN 13 : 3319403583
Total Pages : 741 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Soil Dynamics and Foundation Modeling by : Junbo Jia

Download or read book Soil Dynamics and Foundation Modeling written by Junbo Jia and published by Springer. This book was released on 2017-11-26 with total page 741 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive topical overview on soil dynamics and foundation modeling in offshore and earthquake engineering. The spectrum of topics include, but is not limited to, soil behavior, soil dynamics, earthquake site response analysis, soil liquefactions, as well as the modeling and assessment of shallow and deep foundations. The author provides the reader with both theory and practical applications, and thoroughly links the methodological approaches with engineering applications. The book also contains cutting-edge developments in offshore foundation engineering such as anchor piles, suction piles, pile torsion modeling, soil ageing effects and scour estimation. The target audience primarily comprises research experts and practitioners in the field of offshore engineering, but the book may also be beneficial for graduate students.

Soil-structure Interaction Effects on Containment Fragilities and Floor Response Spectra Statistics

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Soil-structure Interaction Effects on Containment Fragilities and Floor Response Spectra Statistics by :

Download or read book Soil-structure Interaction Effects on Containment Fragilities and Floor Response Spectra Statistics written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The probability-based method for the reliability evaluation of nuclear structures developed at Brookhaven National Laboratory (BNL) is extended to include soil-structure interaction effects. A reinforced concrete containment is analyzed in order to investigate the soil-structure interaction effects on: structural fragilities; floor response spectra statistics and acceleration response correlations. To include the effect of soil flexibility on the reliability assessment the following two step approach is used. In the first step, the lumped parameter method for soil-structure interaction analysis is used together with a stick model representation of the structure in order to obtain the motions of the foundation plate. These motions, which include both translations and rotations of the foundation plate, are expressed in terms of the power-spectral density of the free-field ground excitation and the transfer function of the total acceleration response of the foundation. The second step involves a detailed finite element model of the structure subjected to the interaction motions computed from step one. Making use of the structural model and interaction motion the reliability analysis method yields the limit stat probabilities and fragility data for the structure.

Efficient Finite Element Analysis of Seismic Structure - Soil - Structure Interaction

Author : John Lysmer
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (21 download)

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Book Synopsis Efficient Finite Element Analysis of Seismic Structure - Soil - Structure Interaction by : John Lysmer

Download or read book Efficient Finite Element Analysis of Seismic Structure - Soil - Structure Interaction written by John Lysmer and published by . This book was released on 1975 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hybrid Modelling of Soil-structure Interaction

Author : Sunil Gupta
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Hybrid Modelling of Soil-structure Interaction by : Sunil Gupta

Download or read book Hybrid Modelling of Soil-structure Interaction written by Sunil Gupta and published by . This book was released on 1980 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Soil-Foundation-Structure Interaction Analysis Using Finite Elements

Author : Ahmed Mohd
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659681172
Total Pages : 52 pages
Book Rating : 4.6/5 (811 download)

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Book Synopsis Soil-Foundation-Structure Interaction Analysis Using Finite Elements by : Ahmed Mohd

Download or read book Soil-Foundation-Structure Interaction Analysis Using Finite Elements written by Ahmed Mohd and published by LAP Lambert Academic Publishing. This book was released on 2015-03-11 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of foundation of the building structure should be given prime attention because building foundation is in contact with the material i.e. soil which is highly complex, particulate, poly-phase, heterogeneous, and stress and strain level dependent. The real behavior of structure in contact with soil involves an interactive process beginning with the construction phase and ending with a state of balance within the structure and within the ground influenced by the structure. The analysis of such combined piled-raft foundation is very challenging because of complexities involved in the interaction between soil, pile, raft slab and structure. The interaction between the soil, foundation and the structure affects the demands (loads and displacements) imposed on structure, and the analysis of interaction between the pile, the raft and the soil of combined piled-raft foundation and upper structure can only be possible effectively by means of an advanced three-dimensional non-linear finite element technique or using a computer code based on advanced computational techniques in which proper models are incorporated to simulate soil behavior and soil-structure interaction.

Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions

Author : Francesco Silvestri
Publisher : CRC Press
ISBN 13 : 0429632010
Total Pages : 8083 pages
Book Rating : 4.4/5 (296 download)

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Book Synopsis Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions by : Francesco Silvestri

Download or read book Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions written by Francesco Silvestri and published by CRC Press. This book was released on 2019-07-19 with total page 8083 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions contains invited, keynote and theme lectures and regular papers presented at the 7th International Conference on Earthquake Geotechnical Engineering (Rome, Italy, 17-20 June 2019. The contributions deal with recent developments and advancements as well as case histories, field monitoring, experimental characterization, physical and analytical modelling, and applications related to the variety of environmental phenomena induced by earthquakes in soils and their effects on engineered systems interacting with them. The book is divided in the sections below: Invited papers Keynote papers Theme lectures Special Session on Large Scale Testing Special Session on Liquefact Projects Special Session on Lessons learned from recent earthquakes Special Session on the Central Italy earthquake Regular papers Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions provides a significant up-to-date collection of recent experiences and developments, and aims at engineers, geologists and seismologists, consultants, public and private contractors, local national and international authorities, and to all those involved in research and practice related to Earthquake Geotechnical Engineering.