Author: Chad Michael Rachel Publisher: ISBN: Category : Languages : en Pages :
Book Description
Single piles and pile groups are frequently subjected to high lateral forces. The safety and functionality of many structures depends on the ability of the supporting pile foundation to resist the resulting lateral forces. In the analysis and design of laterally loaded piles, two criterions usually govern. First, the deflection at the working load should not be so excessive as to impair the proper function of the supporting member. Second, the ultimate strength of the pile should be high enough to take the load imposed on it under the worst loading condition. Typically, pile length, pile section, soil type, and pile restraint dictate the analysis. This paper presents different methods, specifically Broms' method and the p-y method, for both the analysis and design of laterally loaded single piles. Both linear and nonlinear analyses are considered. The measured results of several full-scale field tests performed by Lymon Reese are compared to computed results using Broms' method of analysis and the p-y method of analysis. Observations are made as to the correlation between the results and recommendations are made as to the applicability of the accepted methods for the analysis and design of laterally loaded piles.
Author: Dipanjan Basu Publisher: Purdue University Press ISBN: 9781622601264 Category : Transportation Languages : en Pages : 152
Book Description
This report focuses on the development of a new method of analysis of laterally loaded piles embedded in a multi-layered soil deposit treated as a three-dimensional continuum. Assuming that soil behaves as a linear elastic material, the governing differential equations for the deflection of laterally loaded piles were obtained using energy principles and calculus of variations. The differential equations were solved using both the method of initial parameters and numerical techniques. Soil resistance, pile deflection, slope of the deflected pile, bending moment and shear force can be easily obtained at any depth along the entire pile length. The results of the analysis were in very good agreement with three-dimensional finite element analysis results. The analysis was further extended to account for soil nonlinearity. A few simple constitutive relationships that allow for modulus degradation with increasing strain were incorporated into the analysis. The interaction of piles in groups was also studied.
Author: Lymon C. Reese Publisher: John Wiley & Sons ISBN: 0471431591 Category : Technology & Engineering Languages : en Pages : 608
Book Description
One-of-a-kind coverage on the fundamentals of foundation analysis and design Analysis and Design of Shallow and Deep Foundations is a significant new resource to the engineering principles used in the analysis and design of both shallow and deep, load-bearing foundations for a variety of building and structural types. Its unique presentation focuses on new developments in computer-aided analysis and soil-structure interaction, including foundations as deformable bodies. Written by the world's leading foundation engineers, Analysis and Design of Shallow and Deep Foundations covers everything from soil investigations and loading analysis to major types of foundations and construction methods. It also features: * Coverage on computer-assisted analytical methods, balanced with standard methods such as site visits and the role of engineering geology * Methods for computing the capacity and settlement of both shallow and deep foundations * Field-testing methods and sample case studies, including projects where foundations have failed, supported with analyses of the failure * CD-ROM containing demonstration versions of analytical geotechnical software from Ensoft, Inc. tailored for use by students in the classroom
Author: An-Bin Huang Publisher: CRC Press ISBN: 1351255398 Category : Technology & Engineering Languages : en Pages : 601
Book Description
One of the core roles of a practising geotechnical engineer is to analyse and design foundations. This textbook for advanced undergraduates and graduate students covers the analysis, design and construction of shallow and deep foundations and retaining structures as well as the stability analysis and mitigation of slopes. It progressively introduces critical state soil mechanics and plasticity theories such as plastic limit analysis and cavity expansion theories before leading into the theories of foundation, lateral earth pressure and slope stability analysis. On the engineering side, the book introduces construction and testing methods used in current practice. Throughout it emphasizes the connection between theory and practice. It prepares readers for the more sophisticated non-linear elastic-plastic analysis in foundation engineering which is commonly used in engineering practice, and serves too as a reference book for practising engineers. A companion website provides a series of Excel spreadsheet programs to cover all examples included in the book, and PowerPoint lecture slides and a solutions manual for lecturers. Using Excel, the relationships between the input parameters and the design and analysis results can be seen. Numerical values of complex equations can be calculated quickly. non-linearity and optimization can be brought in more easily to employ functioned numerical methods. And sophisticated methods can be seen in practice, such as p-y curve for laterally loaded piles and flexible retaining structures, and methods of slices for slope stability analysis.
Author: Robert L. Parsons Publisher: ISBN: Category : Electronic books Languages : en Pages : 366
Book Description
Foundation Analysis and Design: Innovative Methods covers recent advances in the research and construction of shallow foundations, pile foundations and limit state design. This Geotechnical Special Publication contains 44 technical papers that were presented at the GeoShanghai Conference held in Shanghai, China from June 6-8, 2006. The book begins with a keynote paper by Professor Harry Poulos, which summarizes recent advances in the settlement of pile groups. The next section contains fifteen papers which address statistical applications and the use of limit state design for foundations. The third section contains 25 papers on deep foundations that describe a series of advances in the estimation of pile capacity and pile installation issues. The final section includes three papers that focus on advances in the estimation of settlement associated with shallow foundations.
Author: Lymon C. Reese Publisher: CRC Press ISBN: 1439894302 Category : Technology & Engineering Languages : en Pages : 529
Book Description
The complexities of designing piles for lateral loads are manifold as there are many forces that are critical to the design of big structures such as bridges, offshore and waterfront structures and retaining walls. The loads on structures should be supported either horizontally or laterally or in both directions and most structures have in common t
Author: A. Zingoni Publisher: Elsevier ISBN: 0080541925 Category : Technology & Engineering Languages : en Pages : 1704
Book Description
Following on from the International Conference on Structural Engineering, Mechanics and Computation, held in Cape Town in April 2001, this book contains the Proceedings, in two volumes. There are over 170 papers written by Authors from around 40 countries worldwide. The contributions include 6 Keynote Papers and 12 Special Invited Papers. In line with the aims of the SEMC 2001 International Conference, and as may be seen from the List of Contents, the papers cover a wide range of topics under a variety of themes. There is a healthy balance between papers of a theoretical nature, concerned with various aspects of structural mechanics and computational issues, and those of a more practical nature, addressing issues of design, safety and construction. As the contributions in these Proceedings show, new and more efficient methods of structural analysis and numerical computation are being explored all the time, while exciting structural materials such as glass have recently come onto the scene. Research interest in the repair and rehabilitation of existing infrastructure continues to grow, particularly in Europe and North America, while the challenges to protect human life and property against the effects of fire, earthquakes and other hazards are being addressed through the development of more appropriate design methods for buildings, bridges and other engineering structures.
Author: Jonas Fabian Bauer Publisher: ISBN: Category : Languages : en Pages : 240
Book Description
Offshore wind farms have the ability to meet the energy demands of the USA four times over, and are located offshore where less turbulent, high-speed winds can generate electricity efficiently. The most popular option for offshore foundations are monopiles, which are characterized as large diameter steel pipe pile suited for relatively shallow depth (20 – 30m) so they have a large aspect ratio (length divided by diameter or L/D) of between 3 and 8. The most common design methods for laterally loaded monopiles rely on p-y curves, which were developed for relatively small-diameter and slender piles and might not be suited to predict the behavior of larger diameter and smaller L/D ratios. In order to evaluate the suitability of p-y curves to predict the load – displacement behavior of laterally loaded monopiles a consistent laboratory testing methodology to perform 1-g lateral load tests in sand was developed. The aim of this research is to compare the results from the 1- g lateral load tests to compared to the predictions of a newly developed 3D Finite Element Method (FEM) analysis as well predictions from the American Petroleum Institute (API), which utilizes the p-y method. A repeatable and consistent methodology to conduct a large number of 1-g lateral load tests in sand using spheres to model the state of stresses around a monopile for varying sphere diameters and embedment depths was developed. The sand was characterized by its dynamic properties, which were used as input parameters for the 3D FEM analysis. A total of 50 1-g model tests were conducted and analyzed. The results indicate that the 3D FEM is able the non-linearity in initial stiffness if accurate dynamic properties are used. Additionally, p-y were not able to capture the initial non-linearity in the load – displacement behavior and underestimated the initial stiffness for all tests.
Author: Chad Michael Rachel
Author: James A. Langer
Author: Dipanjan Basu
Author: Lymon C. Reese
Author: An-Bin Huang
Author: 
Author: Robert L. Parsons
Author: Lymon C. Reese
Author: A. Zingoni
Author: Jonas Fabian Bauer