Download or read book Nonlinear finite element study of piles in integral abutment bridges written by and published by . This book was released on 1982 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extent of integral abutment use in skewed bridges and different guidelines used for analysis and design of integral abutments in skewed bridges.

Download or read book Nonlinear Finite Element Study of Piles in Intergral Abutment Bridges written by P. S. Yang and published by . This book was released on 1982 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extent of integral abutment use in skewed bridges and different guidelines used for analysis and design of integral abutments in skewed bridges.

Download or read book Nonlinear Finite Element Analysis of Piles in Integral Abutment Bridges written by Pe-Shen Yang and published by . This book was released on 1984 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Ambient Temperature Changes on Integral Bridges written by Bhavik R. Shah and published by . This book was released on 2008 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral Bridges (IBs) are joint-less bridges whereby the deck is continuous and monolithic with abutment walls. IBs are outperforming their non-integral counterparts in economy and safety. Their principal advantages are derived from the absence of expansion joints and sliding bearings in the deck, making them the most cost-effective system in terms of construction, maintenance, and longevity. The main purpose of constructing IBs is to prevent the corrosion of structure due to water seepage through joints. The simple and rapid construction provides smooth, uninterrupted deck that is aesthetically pleasing and safer for riding. The single structural unit increases the degree of redundancy enabling higher resistance to extreme events. However, the design of IBs not being an exact science poses certain critical issues. The continuity achieved by this construction results in thermally induced deformations. These in turn introduce a significantly complex and nonlinear soil-structure interaction into the response of abutment walls and piles of the lB. The unknown soil response and its effect on the stresses in the bridge, creates uncertainties in the design. To gain a better understanding of the mechanism of load transfer due to thermal expansion, which is also dependent on the type of the soil adjacent to the abutment walls and piles, a 3D finite element analysis is carried out on a representative IB using state-of-the-art finite element code ABAQUS/Standard 6.5-1. A literature review focusing on past numerical studies of IBs is presented, followed by details of the numerical model developed in this study using the interactive environment ABAQUS/CAE 6.5-1 along with the analysis details. A discussion of results of the analysis of the IB with three different soil conditions, each experiencing three different temperature change scenarios is presented. Conclusions of the study and recommendations for future research wrap up the report. The advancement of knowledge enabled by this research will provide a basis for introduction of new guidelines in Kansas Bridge Design Manual.

Download or read book 3D Finite Element Analysis of Integral Abutment Bridges Subjected to Thermal Loading written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral Abutment Bridges (IABs) are Jointless Bridges whereby the deck is continuous and monolithic with abutment walls. IABs are outperforming their non-integral counterparts in economy and safety. Their principal advantages are derived from the absence of expansion joints and sliding bearings in the deck, making them the most cost-effective system in terms of construction, maintenance, and longevity. The main purpose of constructing IABs is to prevent the corrosion of structure due to water seepage through joints. The simple and rapid construction provides smooth, uninterrupted deck that is aesthetically pleasing and safer for riding. The single structural unit increases the degree of redundancy enabling higher resistance to extreme events. However, the design of IABs not being an exact science poses certain critical issues. The continuity achieved by this construction results in thermally induced deformations. These in turn introduce a significantly complex and nonlinear soil-structure interaction into the response of abutment walls and piles of the IAB. The unknown soil response and its effect on the stresses in the bridge, creates uncertainties in the design. To gain a better understanding of the mechanism of load transfer due to thermal expansion, which is also dependent on the type of the soil adjacent to the abutment walls and piles, a 3D finite element analysis is carried out on a representative IAB using state-of-the-art finite element code ABAQUS/Standard 6.5-1. A literature review focusing on past numerical models of IABs is presented followed by details of the numerical model developed in this study using the interactive environment ABAQUS/CAE 6.5-1 along with the analysis details. A discussion of results for the analysis of the IAB with three different soil conditions and each experiencing three different temperature change scenarios is presented. Conclusions of the study and recommendations for future research wrap up the thesis. The advancement of knowledge enabled by this research will provide a basis for introduction of new guidelines in Kansas Bridge Design Manual.

Download or read book Finite Elemet sic Analysis of Integral Abutment Bridges written by Erkan Polat and published by . This book was released on 2012 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Argenterie ancienne argenterie des poques Directoire et Restauration written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Finite Element Analysis of Integral Bridges written by Thevaneyan Krishta and published by . This book was released on 2005 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pile Design and Tests for Integral Abutment Bridges written by and published by . This book was released on 1987 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavior of Pile supported Integral Abutments at Bridge Sites with Shallow Bedrock written by John G. DeLano and published by . This book was released on 2005 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Maine, there are often cases where the depth to bedrock prohibits integral abutments bridges from being used. The goal of this research is to determine the feasibility of constructing integral abutments in conditions that cannot provide the fixed support conditions that are traditionally assumed. A finite element model was created that incorporates realistic constitutive and surface interaction models.

Download or read book A METHOD TO PREDICT PILE RESPONSE UNDER VEHICULAR LOADING FOR INTEGRAL ABUTMENT BRIDGES written by Michel Arsenault and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to develop a design method for Integral Abutment Bridges (IABs), such that more accurate predictions of pile response to vehicular loading can be made. This paper presents the results of field tests performed on piles which support an IAB. These results led to a recommended IAB design procedure which includes an in-situ lateral pile load test, the development of P-Y curves, and the establishment of non-linear soil spring constants for modelling IABs. A brief look at the soil-structure interaction (SSI) and mechanics of IABs, as well as a literature review of the evolution of the IAB design process, are included. Early works including the Winkler and elastic continuum theories lead to the establishment of solutions, which provide displacement and stress values used for design purposes. However, the advent of the home computer made Finite Element Modelling (FEM) a more viable and accurate approach to solving "beam on elastic subgrade" problems. A hybrid approach, combining FEM and Winkler theories (FEM-Winkler), has since become standard practice for designers of IABs throughout Canada. An example of such is presented herein. The coefficient of horizontal subgrade reaction, kh, from which are derived the stiffnesses of discrete soil springs used in the hybrid FEM-Winkler design process, is a variable that is difficult to estimate. Therefore, some structural and geotechnical engineers recommend conducting tests to better assess the actual lateral soil spring stiffnesses. Many of these tests, including those described in the American Society for Testing and Materials (ASTM) Standard D3966, are designed to be conducted on expensive mock-up pile assemblies with similar characteristics to those planned for the production piles. An alternate and more economical approach, consisting of an in-situ lateral pile test conducted on a production pile, was conducted. A live load test to measure bridge deck deflection and pile strain was also performed, and both tests are presented herein. Based on the results of the in-situ lateral pile test, structural models were created with the structural software STAAD.Pro, and assumed values of linear lateral soil spring stiffnesses were used to match the pile head deflection and strain measured in the field. Initial estimates of spring stiffness were based on values of the variation of modulus of horizontal subgrade reaction (nh) that were recommended in the Canadian Highway Bridge Design Code (CHBDC) CAN CSA S6-14, and the Canadian Foundation Engineering Manual (CFEM,1992) for each of three (3) soil strata. These soil spring stiffnesses were found to be accurate at high soil strain, but much too flexible at low strain, which indicated soil non-linearity. Therefore, non-linear reaction-deflection (P-Y) curves were developed from the linear soil spring models, by noting the soil reaction at each discrete soil spring location, based on modelled soil/pile deflection. Non-linear soil springs were defined from the tangential stiffness of the P-Y curves, and these were used to refine a three-dimensional FEM-Winkler bridge model. A comparison of the model incorporating non-linear soil springs with the model incorporating linear soil springs demonstrated that each had a similar response to vehicular loading. Further to this, the predicted pile stresses and deck deflections from both bridge models agreed with values measured during the vehicular live-load bridge test.

Download or read book Evaluation of Integral Abutments written by and published by . This book was released on 2006 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Piles in Integral Abutment Bridges written by Mohammad Mafi and published by . This book was released on 1986 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maintenance Safety Risk Management and Life Cycle Performance of Bridges written by Nigel Powers and published by CRC Press. This book was released on 2018-07-04 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges contains lectures and papers presented at the Ninth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018), held in Melbourne, Australia, 9-13 July 2018. This volume consists of a book of extended abstracts and a USB card containing the full papers of 393 contributions presented at IABMAS 2018, including the T.Y. Lin Lecture, 10 Keynote Lectures, and 382 technical papers from 40 countries. The contributions presented at IABMAS 2018 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of bridge maintenance, safety, risk, management and life-cycle performance. Major topics include: new design methods, bridge codes, heavy vehicle and load models, bridge management systems, prediction of future traffic models, service life prediction, residual service life, sustainability and life-cycle assessments, maintenance strategies, bridge diagnostics, health monitoring, non-destructive testing, field testing, safety and serviceability, assessment and evaluation, damage identification, deterioration modelling, repair and retrofitting strategies, bridge reliability, fatigue and corrosion, extreme loads, advanced experimental simulations, and advanced computer simulations, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of more rational decision-making on bridge maintenance, safety, risk, management and life-cycle performance of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including students, researchers and engineers from all areas of bridge engineering.

Download or read book Proceedings of the International Symposium on Engineering under Uncertainty Safety Assessment and Management ISEUSAM 2012 written by Subrata Chakraborty and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012) is organized by Bengal Engineering and Science University, India during the first week of January 2012 at Kolkata. The primary aim of ISEUSAM 2012 is to provide a platform to facilitate the discussion for a better understanding and management of uncertainty and risk, encompassing various aspects of safety and reliability of engineering systems. The conference received an overwhelming response from national as well as international scholars, experts and delegates from different parts of the world. Papers received from authors of several countries including Australia, Canada, China, Germany, Italy, UAE, UK and USA, besides India. More than two hundred authors have shown their interest in the symposium. The Proceedings presents ninety two high quality papers which address issues of uncertainty encompassing various fields of engineering, i.e. uncertainty analysis and modelling, structural reliability, geotechnical engineering, vibration control, earthquake engineering, environmental engineering, stochastic dynamics, transportation system, system identification and damage assessment, and infrastructure engineering.

Download or read book Journal of Geotechnical Engineering written by and published by . This book was released on 1985 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Three Dimensional Nonlinear Finite Element Analysis of Tieback Walls and of Soil Nailed Walls Under Piled Bridge Abutments written by Yu-Jin Lim and published by . This book was released on 1996 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: