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Author: Jung-Feng Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 760
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Book Description
Author: Jung-Feng Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 760
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Book Description
Author: Richa Bhatnagar
Publisher:
ISBN:
Category :
Languages : en
Pages : 126
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Book Description
The reliability-based analysis of laterally loaded piles needs to be incorporated where the lateral movement of the foundation affects the operation of the structure. The 'p-y' approach is a widely used soil-pile interaction model to analyze the response of laterally loaded piles. Currently, nominal values of soil parameters are used in the 'p-y' model depending on the judgments of the designers. This judgment leads to ambiguity which can potentially be overcome by using reliability based design. Following the Load and Resistance Factor Design (LRFD) approach, resistance factors may be developed for the use in design of laterally loaded piles. Furthermore, using the 'p-y' model and Monte Carlo simulation, lateral load displacement curves can be developed for laterally loaded piles. Hyperbolic load displacement behavior of the soil-pile interface is considered for the analysis. The load displacement curves are analyzed to find the probabilistic load capacity relationships of piles. These relations are then utilized to further develop the resistance factors that can be included in LRFD applications. Finally, a parametric analysis is carried out where the soil-pile interface parameters are varied to understand their effect on the resistance factors.
Author: Amir M. Kaynia
Publisher: CRC Press
ISBN: 1000398560
Category : Technology & Engineering
Languages : en
Pages : 366
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Book Description
This book presents computational tools and design principles for piles used in a wide range of applications and for different loading conditions. The chapters provide a mixture of basic engineering solutions and latest research findings in a balanced manner. The chapters are written by world-renowned experts in the field. The materials are presented in a unified manner based on both simplified and rigorous numerical methods. The first four chapters present the basic elements and steps in analysis of piles under static and cyclic loading together with clear references to the appropriate design regulations in Eurocode 7 when relevant. The analysis techniques cover conventional code-based methods, solutions based on pile-soil interaction springs, and advanced 3D finite element methods. The applications range from conventional piles to large circular steel piles used as anchors or monopiles in offshore applications. Chapters 5 to 10 are devoted to dynamic and earthquake analyses and design. These chapters cover a range of solutions from dynamic pile-soil springs to elasto-dynamic solutions of large pile groups. Both linear and nonlinear soil behaviours are considered along with response due to dynamic loads and earthquake shaking including possible liquefaction. The book is unique in its unified treatment of the solutions used for static and dynamic analysis of piles with practical examples of application. The book is considered a valuable tool for practicing engineers, graduate students and researchers.
Author: Modale Jacob Chacko
Publisher:
ISBN:
Category :
Languages : en
Pages : 290
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Author: Barbara Jean Chang
Publisher:
ISBN: 9781124813998
Category :
Languages : en
Pages : 285
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Book Description
Saturated soils, particularly cohesionless soils, may liquefy when subjected to earthquake excitation, resulting in reductions in strength and stiffness of the soil. The consequences have shown to be devastating to foundations in past earthquakes. For pile foundations, a reduction of vertical or lateral soil resistance may cause failure of the super structure. To study this issue, two unique 1-g soil-pile tests were conducted. The models were constructed in a laminar soil box which was subsequently placed on a uniaxial shake table. One experiment focused on characterizing the soil resistance of partially liquefied soil, while the other on multi-layered soil and the effect of its movement and load demands on the nonlinear behavior of piles. These two different experimental configurations illustrate scenarios commonly observed in the field, where the behavior of the soil and the pile merit further investigation. While evidence in the literature indicates that the lateral soil ("p-y") resistance of piles in liquefiable soils is significantly reduced, the shape and amplitude of the reduced p-y curve during pore pressure build-up is not well understood. To investigate this, a single steel pile embedded in homogeneous saturated Nevada sand was subjected to sequential dynamic shaking and lateral inertial equivalent loading. A key goal in the test program was to develop a data set capable of rendering insight into the characteristics of p-y resistance under developing and partial liquefied soil conditions. Test data were used to back-calculate p-y resistance curves for partially liquefied soils. These curves are subsequently adopted in a numerical study of the behavior of piles in partially liquefied soils considering different layering conditions. In contrast, in a multi-layered soil profile, if a loose layer liquefies, large localized plastic demands may be generated in the piles. In the case of concrete piles, these demands manifest flexural cracks in the concrete, which weakens the pile and exposes it to subsequent environmental degradation. During the experiments conducted herein to study this issue, plastic demands in the pile were characterized using curvature profiles coupled with back-calculation of the plastic hinge length and post-test physical observations. Numerical modeling studies demonstrate the applicability of current design-oriented tools to capture these key response parameters needed for design.
Author: Rolando P. Orense
Publisher: CRC Press
ISBN: 0203838203
Category : Technology & Engineering
Languages : en
Pages : 258
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Book Description
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
Author: Atilla Ansal
Publisher: Springer
ISBN: 3319169645
Category : Science
Languages : en
Pages : 458
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Book Description
This book collects 4 keynote and 15 theme lectures presented at the 2nd European Conference on Earthquake Engineering and Seismology (2ECEES), held in Istanbul, Turkey, from August 24 to 29, 2014. The conference was organized by the Turkish Earthquake Foundation - Earthquake Engineering Committee and Prime Ministry, Disaster and Emergency Management Presidency under the auspices of the European Association for Earthquake Engineering (EAEE) and European Seismological Commission (ESC). The book’s nineteen state-of-the-art chapters were written by the most prominent researchers in Europe and address a comprehensive collection of topics on earthquake engineering, as well as interdisciplinary subjects such as engineering seismology and seismic risk assessment and management. Further topics include engineering seismology, geotechnical earthquake engineering, seismic performance of buildings, earthquake-resistant engineering structures, new techniques and technologies, and managing risk in seismic regions. The book also presents the First Professor Inge Lehmann Distinguished Award Lecture given by Prof. Shamita Das in honor of Prof. Dr. Inge Lehmann. The aim of this work is to present the state-of-the art and latest practices in the fields of earthquake engineering and seismology, with Europe’s most respected researchers addressing recent and ongoing developments while also proposing innovative avenues for future research and development. Given its cutting-edge conten t and broad spectrum of topics, the book offers a unique reference guide for researchers in these fields. Audience: This book is of interest to civil engineers in the fields of geotechnical and structural earthquake engineering; scientists and researchers in the fields of seismology, geology and geophysics. Not only scientists, engineers and students, but also those interested in earthquake hazard assessment and mitigation will find in this book the most recent advances.
Author: Man Hoi Lok
Publisher:
ISBN:
Category : Soil-structure interaction
Languages : en
Pages : 726
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Book Description
Author: Junbo Jia
Publisher: Springer
ISBN: 3319403583
Category : Technology & Engineering
Languages : en
Pages : 741
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Book Description
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.
Author: Shentang Wang
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 324
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Book Description
