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Author: Richa Bhatnagar Publisher: ISBN: Category : Languages : en Pages : 126
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: Richa Bhatnagar Publisher: ISBN: Category : Languages : en Pages : 126
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: 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: LC. Reese Publisher: ISBN: Category : Loads Languages : en Pages : 13
Book Description
The design of piles to resist lateral loading is an important problem in soil structure interaction. Several methods, based on different theories, have been suggested for analysis of such foundations. Taking into account the nonlinear and inelastic characteristics of soils, the p-y method of analysis is thought to be the best one at the present time. A principal feature of the p-y method is the solution of a nonlinear, fourth-order differential equation by finite-difference techniques. The soil is modelled by the use of discrete mechanisms (p-y curves), which relate the soil resistance to the pile deflection at various depths below the ground surface.
Author: Bak Kong Low Publisher: CRC Press ISBN: 1000472566 Category : Technology & Engineering Languages : en Pages : 399
Book Description
This book contains probabilistic analyses and reliability-based designs (RBDs) for the enhancement of Eurocode 7 (EC7) and load and resistance factor design (LRFD) methods. An intuitive perspective and efficient computational procedure for the first-order reliability method (FORM, which includes the Hasofer–Lind reliability index) is explained, together with discussions on the similarities and differences between the design point of EC7/LRFD and RBD-via-FORM. Probability-based designs with respect to the ultimate and serviceability limit states are demonstrated for soil and rock engineering, including shallow and deep foundations, earth-retaining structures, soil slopes, 2D rock slopes with discontinuities, 3D rock slopes with wedge mechanisms, and underground rock excavations. Renowned cases in soil and rock engineering are analyzed both deterministically and probabilistically, and comparisons are made with other probabilistic methods. This book is ideal for practitioners, graduate students and researchers and all who want to deepen their understanding of geotechnical RBD accounting for uncertainty and overcome some limitations and potential pitfalls of the evolving LRFD and EC7. Solutions for the book’s examples are available online and are helpful to acquire a hands-on appreciation: https://www.routledge.com/9780367631390.
Author: G.C. Koukis Publisher: CRC Press ISBN: 9789058091970 Category : Science Languages : en Pages : 366
Book Description
Composed of the proceedings of a symposium on engineering geology and the environment, held in Athens in June, 1997, this work provides a survey of trends in engineering geology, and an interdisciplinary collaboration with hydrogeology, geochemistry, geomorphology, and soil and rock mechanics.
Author: Richa Bhatnagar
Author: Richa Bhatnagar
Author: Jumpol Paiboon
Author: Lymon C. Reese
Author: Dipanjan Basu
Author: LC. Reese
Author: Kevin J. Bentley
Author: Bak Kong Low
Author: Steven Lawrence Kramer
Author: G.C. Koukis
Author: Kevin J. Bentley