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Influence Of Batter Piles On The Dynamic Behavior Of Pile Supported Wharf Structures Under Seismic Loading
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Book Synopsis Influence of Batter Piles on the Dynamic Behavior of Pile Supported Wharf Structures Under Seismic Loading by : Jonathan Charles Boland
Download or read book Influence of Batter Piles on the Dynamic Behavior of Pile Supported Wharf Structures Under Seismic Loading written by Jonathan Charles Boland and published by . This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Behaviour of Pile Foundations with Soil-pile Interaction by : Yingcai Han
Download or read book Dynamic Behaviour of Pile Foundations with Soil-pile Interaction written by Yingcai Han and published by . This book was released on 1995 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Performance of a Pile-supported Container Wharf Structures in Rockfill by : Yohsuke Kawamata
Download or read book Seismic Performance of a Pile-supported Container Wharf Structures in Rockfill written by Yohsuke Kawamata and published by . This book was released on 2009 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, the concept of performance based design has become popular for many types of structures, including port facilities under seismic loading. For the case of pile-supported wharves, the level of performance is generally estimated using the displacement capacity of the structure. Therefore, understanding soil-pile interaction is one of the most critical factors for estimating performance. One of the biggest challenges on the displacement estimation is defining the soil parameters. However, only limited information is available in the literature on the behavior of laterally loaded piles in the large-diameter rockfill typically used in port dike construction, where the particle size approaches the pile diameter. In light of this, a series of full-scale lateral load tests on piles in the rockfill were conducted in order to obtain a better understanding of the performance of the wharf deck pile-soil system against lateral loading, and reaction mechanism in rockfill. All the tests were conducted successfully, and large amount of useful data and some important observations were obtained during and after the tests. Following the experiments, numerical analyses were conducted with a set of soil dependant stiffness curves (i.e. p-y curves) currently used for design practice. These results were compared with the test results in order to assess the validity of the current design approach. It was concluded that those p-y curves could provide reasonable rotation and deflection profiles along the test piles, but gave considerably underestimated ultimate lateral resistance of the pile-soil system. In order to find possible reasons for this, the observations during and after the tests were carefully reviewed. Based on the review, it was found that the lateral reaction from the rockfill under low confinement plays a very important role. Considering particulate mechanism in the rockfill, a reasonable hypothesis was developed; i.e. the lateral reaction from the rockfill is a combination of reactions due to both friction and interlocking between large rock particles. Based on this hypothesis, backcalculation of the p-y curves was carried out comparing the experimental and numerical results, and it was concluded that addition of the interlocking concept to the p-y curves used in the current design methodology significantly improved performance.
Book Synopsis Dynamic Effects of Pile Installations on Adjacent Structures by : Richard D. Woods
Download or read book Dynamic Effects of Pile Installations on Adjacent Structures written by Richard D. Woods and published by Transportation Research Board. This book was released on 1997 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference sessions cover: bridge management systems, bridge aesthetics, bridge performance, bridge construction, long-span bridges, bridge loads and dynamics, FRP composites and other materials, bridge rehabilitation, seismic response of bridges, bridge bearings, joints, and details, prestressed concrete bridges, bridge structural systems, bridge substructures: scour and ship impact, bridge fatigue and redundancy, and wood bridges. -- Intro., p.xi.
Book Synopsis Effects of Vibratory Loads on Piles by : A. A. Maxwell
Download or read book Effects of Vibratory Loads on Piles written by A. A. Maxwell and published by . This book was released on 1964 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extremely massive structures are required for conducting static checkouts of the Saturn V space vehicle. The large forces, both static and dynamic, to be imposed by such operations will require extremely high stability of the structure and particularly of its foundation. Investigations were conducted to obtain information relative to the behavior of piling supporting the structures when subjected to static and dynamic loadings. The piling consisted of steel H-piles (14 BP73) and 14-in.-diameter pipe filled with portland cement concrete. The piling was driven or set to a depth of approximately 88 ft, penetrating into a dense sand layer. Field tests were conducted by statically loading both single piles and a cluster of four piles, and subjecting certain of them to dynamic loads.
Book Synopsis Centrifuge Seismic Modeling of Pile-Supported Wharves by : Nason J. McCullough
Download or read book Centrifuge Seismic Modeling of Pile-Supported Wharves written by Nason J. McCullough and published by . This book was released on 2007 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five pile-supported wharf models were dynamically tested in a large-scale geotechnical centrifuge at UC Davis, California. Models representing pile-supported wharf configurations common in the United States were subjected to recorded acceleration time histories. Model variations included single-lift, multi-lift, and cut-slope rock dike configurations with foundation layers of loose liquefiable sand, marine clay, or dense sand, or a combination thereof. In addition, zones of soil were placed to model soil improvement. Structural elements representing pile-supported wharf geometries were placed within the models; some models included all vertical piles, while two of the models included batter piles. In addition, single piles were placed in two of the models and subjected to static cyclic lateral load tests. All models were extensively instrumented with nearly 100 instruments recording accelerations, pore pressures, linear deformations, and pile strains. This paper summarizes the design, construction, and testing of these complex models, and includes a brief summary of the results and recommendations for future modeling.
Book Synopsis Behavioral Characteristics of Group Batter Piles According to Pile Inclination and Action Direction Under Statically Lateral Loads by : Gi-Chun Kang
Download or read book Behavioral Characteristics of Group Batter Piles According to Pile Inclination and Action Direction Under Statically Lateral Loads written by Gi-Chun Kang and published by . This book was released on 2018 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pile foundations are designed by vertical piles; however, sometimes batter piles are considered because of their bending rigidity. In general, batter piles are known to have more lateral resistance than the vertical piles, but limited research has been conducted on them because of application limitations and the fact that interpreting construction equipment is difficult. Additionally, field application cases are rarely used for off-shore plants in which lateral loads have a great effect on the foundations of wind power structures. In a single pile, the interaction behavior of a subgrade-pile is so complicated that accurate predictions are impossible. This study is designed to aid in understanding the behavioral characteristics of group batter piles on which a lateral load acts through a model test. The experiments were conducted with 22 single batter piles and 48 group batter piles, and the results showed that the lateral resistance increased as the tilt angle rose. Furthermore, the lateral resistance was at its peak when the lateral loading angle was 60°, and the resistance of the front pile was greater than that of the rear pile. The bending moment, according to the angle of tilt, changed as the group of piles generally increased and as the angle of tilt rose for both the front and rear piles. The action position of the maximum bending moment tends to go up toward the upper part of the piles as the angle of tilt rises for the front and rear piles.
Book Synopsis From Fundamentals to Applications in Geotechnics by : D. Manzanal
Download or read book From Fundamentals to Applications in Geotechnics written by D. Manzanal and published by IOS Press. This book was released on 2015-12-11 with total page 3344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work of geotechnical engineers contributes to the creation of safe, economic and pleasant spaces to live, work and relax all over the world. Advances are constantly being made, and the expertise of the profession becomes ever more important with the increased pressure on space and resources. This book presents the proceedings of the 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XV PCSMGE), held in Buenos Aires, Argentina, in November 2015. This conference, held every four years, is an important opportunity for international experts, researchers, academics, professionals and geo-engineering companies to meet and exchange ideas and research findings in the areas of soil mechanics, rock mechanics, and their applications in civil, mining and environmental engineering. The articles are divided into nine sections: transportation geotechnics; in-situ testing; geo-engineering for energy and sustainability; numerical modeling in geotechnics; foundations and ground improvement; unsaturated soil behavior; embankments, dams and tailings; excavations and tunnels; and geo-risks, and cover a wide spectrum of issues from fundamentals to applications in geotechnics. This book will undoubtedly represent an essential reference for academics, researchers and practitioners in the field of soil mechanics and geotechnical engineering. In this proceedings, approximately 65% of the contributions are in English, and 35% of the contributions are in Spanish or Portuguese.
Book Synopsis The Response of Piles During Earthquakes by : Ross W. Boulanger
Download or read book The Response of Piles During Earthquakes written by Ross W. Boulanger and published by . This book was released on 1998 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic response of pile foundations in soft clay and liquefiable sand during strong earthquake shaking was evaluated. The research consisted of two major components: (1) a series of dynamic centrifuge tests of pile-supported structures in soft clay and liquefiable sand; and (2) an evaluation of dynamic "beam on a nonlinear Winkler foundation" (BNWF) analysis methods against the centrifuge model results.
Book Synopsis In Situ Dynamic Model Test for Pile-Supported Wharf in Liquefied Sand by : Wen-Jong Chang
Download or read book In Situ Dynamic Model Test for Pile-Supported Wharf in Liquefied Sand written by Wen-Jong Chang and published by . This book was released on 2010 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pile-supported wharf is a general option in port design to provide lateral resistance and bearing capacity under both static and dynamic loadings. In situ large-scale physical modeling using surface wave generator was performed to study the dynamic soil-structure interactions in pile-supported wharves and to verify configuration of an in situ monitoring station. A wharf model consisting of two steel pipe piles welded on a steel slab was installed on a reconstituted underwater embankment. Due to screening of stress waves, the two piles are subjected to different loading conditions. Data reduction procedures were developed to analyze coupled shear strain-pore pressure generation behavior, pile responses, and soil-pile interaction characteristics. The results proved that the physical modeling can capture the interactions among the induced shear strain, generated excess pore pressure, and dynamic p-y behavior around piles. Preliminary results also show that evolutions of dynamic p-y curve with excess pore pressure variations should be included in soil-pile interaction modeling.
Book Synopsis Seismic Design of Piers and Wharves by : American Society of Civil Engineers
Download or read book Seismic Design of Piers and Wharves written by American Society of Civil Engineers and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Standard ASCE/COPRI 61-14 uses displacement-based design methods to establish guidelines for the design of piers and wharves to withstand the effects of earthquakes.
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 1992 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Soil-Structure Interaction on the Behavior of Offshore Piles Embedded in Nonlinear Porous Media by : Mohamad Jawad K. Essa Al-Younis
Download or read book Effect of Soil-Structure Interaction on the Behavior of Offshore Piles Embedded in Nonlinear Porous Media written by Mohamad Jawad K. Essa Al-Younis and published by . This book was released on 2013 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pile foundations that support offshore structures are required to resist not only static loading, but also dynamic loading from waves, wind and earthquakes. The purpose of this study is to gain a better understanding of the behavior of offshore piles under cyclic or dynamic loading using the finite element approach. To achieve this goal, an appropriate constitutive model is required to simulate the behavior of soils and interfaces. The DSC constitutive model is developed for saturated interfaces to study the behavior under severe shear deformation at the soil-pile interface. Monotonic and cyclic simple shear experiments are conducted on Ottawa sand-steel interfaces under drained and undrained conditions using the Cyclic-Multi-Degree-of-Freedom shear device with porewater pressure measurement (CYMDOF-P). The effect of various parameters such as normal stress, surface roughness of steel, type of loading, and the amplitude and frequency of the applied displacement in two-way cyclic loading are investigated. The data from the simple shear tests on saturated interfaces are used to calculate the parameters in the DSC model. The resulting parameters are then used to verify the DSC model by back predicting tests from which parameters are determined and independent tests that are not used in parameters determination. The model predictions, in general, were found to provide a highly satisfactory correlation with the observations. In the context of DSC, the concept of critical disturbance is developed to identify initiation of liquefaction in saturated Ottawa sand-steel interfaces. This method is based on using microstructural changes in material as an indication of liquefaction identification. The finite element method, along with DSC constitutive model, is used to investigate the response of offshore piles to dynamic loading. These include cyclic loading of axially loaded instrumented pile in clay and full-scale laterally loaded pile in sand. The DSC model is used to model the nonlinear behavior of saturated soils and interfaces. A nonlinear dynamic finite element program DSC-DYN2D based on the DSC modeling approach and the theory of nonlinear porous media is used for this purpose. Results from numerical solutions are compared with field measurements. Strong agreement between numerical predictions and field measurements are an indication of the ability to solve challenging soil-structure interaction problems. Based on the results of this research, it can be stated that the finite element-DSC model simulation allows realistic prediction of complex dynamic offshore pile-soil interaction problems, and is capable of characterizing behavior of saturated soils and interfaces involving liquefaction.
Download or read book Geotechnical Abstracts written by and published by . This book was released on 1977 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Single Piles in Liquefiable Ground by : Rui Wang
Download or read book Single Piles in Liquefiable Ground written by Rui Wang and published by Springer. This book was released on 2016-03-17 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on the seismic response of piles in liquefiable ground. It describes the design of a three-dimensional, unified plasticity model for large post-liquefaction shear deformation of sand, formulated and implemented for parallel computing. It also presents a three-dimensional, dynamic finite element analysis method for piles in liquefiable ground, developed on the basis of this model,. Employing a combination of case analysis, centrifuge shaking table experiments and numerical simulations using the proposed methods, it demonstrates the seismic response patterns of single piles in liquefiable ground. These include basic force-resistance mode, kinematic and inertial interaction coupling mechanism and major influence factors. It also discusses a beam on the nonlinear Winkler foundation (BNWF) solution and a modified neutral plane solution developed and validated using centrifuge experiments for piles in consolidating and reconsolidating ground. Lastly, it studies axial pile force and settlement during post-earthquake reconsolidation, showing pile axial force to be irrelevant in the reconsolidation process, while settlement is process dependent.
Book Synopsis Dynamic Response of Pile Foundations--experiment, Analysis, and Observation by : Toyoaki Nogami
Download or read book Dynamic Response of Pile Foundations--experiment, Analysis, and Observation written by Toyoaki Nogami and published by . This book was released on 1987 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains studies concerned with observation of the real world dynamic response behavior of pile foundations. Papers address topics such as: experimental methods, observation in model tests and in real earthquake events, and comparison of theoretical results with observed real-world behavior.
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.
