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Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (2 download)
Download or read book Integral Abutments for Steel Bridges written by and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U. S. Department Transportation
Publisher : CreateSpace
ISBN 13 : 9781484198179
Total Pages : 168 pages
Book Rating : 4.1/5 (981 download)
Download or read book Seismic Performance of Steel Plate Girder Bridges with Integral Abutments written by U. S. Department Transportation and published by CreateSpace. This book was released on 2013-04-24 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a pilot study on the seismic behavior and response of steel bridges with integral abutments. Analytical investigations were conducted on computational models of steel bridges with integral abutments to determine their seismic behavior as a system and to develop seismic design guidelines. The effect of the superstructure flexibility due to inadequate embedment length was investigated using 3D finite element models. This flexibility, modeled as translational and rotational springs, proved to have significant effect on the overall bridge dynamic characteristics in terms of periods and critical mode shapes. Lateral and longitudinal load paths and the seismic response were investigated using modal pushover and nonlinear time history analyses. A limited investigation on the effect of skew was conducted on a single-span integral abutment bridge. A procedure for incorporating the system level damping due to the yielding and inelastic responses of various components was proposed for use in the seismic analysis. Based on the analytical investigations and available experimental research, guidelines for the seismic analysis and design of integral abutment bridges were developed.
Author : Martin P Burke Jr
Publisher : John Wiley & Sons
ISBN 13 : 1444316370
Total Pages : 272 pages
Book Rating : 4.4/5 (443 download)
Download or read book Integral and Semi-Integral Bridges written by Martin P Burke Jr and published by John Wiley & Sons. This book was released on 2009-06-17 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide, integral type bridges are being used in greater numbersin lieu of jointed bridges because of their structural simplicity,first-cost economy, and outstanding durability. In the UK and theUS states of Tennessee and Missouri, for example, the constructionof most moderate length bridges is based on the integral bridgeconcept. The state of Washington uses semi-integral bridges almostexclusively, while, depending on subfoundation characteristics, thestate of Ohio and others use a mix of these two bridge types. Integral and Semi-Integral Bridges has been written by apracticing bridge design engineer who has spent his entire careerinvolved in the origination, evaluation and design of such bridgesin the USA, where they have been in use since the late1930’s. This work shows how the analytical complexity due tothe elimination of movable joints can be minimized to negligiblelevels so that most moderate length bridges can be easily andquickly modified or replaced with either integral or semi-integralbridges. Bridge design, construction, and maintenance engineers; bridgedesign administrators; graduate level engineering students andstructural research professionals will all find this bookexceptionally informative for a wide range of highway bridgeapplications.
Author : Robert E. Abendroth
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (74 download)
Download or read book Field Testing of Integral Abutments written by Robert E. Abendroth and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research program were to evaluate the state-of-art for the design of prestressed-concrete (PC), integralabutment bridges; to validate the assumptions that are incorporated in the current-design procedures for these types of bridges when they are subjected to thermal-loading conditions; and, as appropriate, to revise and improve the current-design procedures for this type of a bridge, as that design relates to the thermally-induced displacements of the abutments and the thermally-induced forces in the abutments and abutment piles. Two, skewed, PC girder, integral-abutment bridges in the State of Iowa were instrumented over a two-year period to measure structural behavior. Longitudinal and transverse displacements and rotation of the integral abutments, strains in the steel piles and in the PC girders, and temperature distributions were recorded throughout the monitoring period for both bridges. The coefficient of thermal expansion and contraction for the concrete in core specimens that were taken from 20 bridge decks and from several PC girders was experimentally measured at the 100%-dry and 100%-saturated conditions. The longitudinal displacements of the integral abutments correlated well with the recorded change in the bridge temperature. Total, longitudinal, pile strains exceeded the minimum, specified, yield strain of the steel for both bridges. Longitudinal strains in the PC girders were well within acceptable limits. The experimental data were used to calibrate and refine finite-element models of both bridges. Discrepancies were not fully explained for the differences between the predicted and measured, thermal expansion of the bridge and vertical rotations of the integral abutments.
Author : Reidar Bjorhovde
Publisher : Elsevier
ISBN 13 : 0080529798
Total Pages : 635 pages
Book Rating : 4.0/5 (85 download)
Download or read book Connections in Steel Structures III written by Reidar Bjorhovde and published by Elsevier. This book was released on 1996-05-20 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book publishes the proceedings from the Third International Workshop on Connections in Steel Structures: Behaviour, Strength and Design held in Trento, Italy, 29-31 May 1995. The workshop brought together the world's foremost experts in steel connections research, development, fabrication and design. The scope of the papers reflects state-of-the-art issues in all areas of endeavour, and manages to bring together the needs of researchers as well as designers and fabricators. Topics of particular importance include connections for composite (steel-concrete) structures, evaluation methods and reliability issues for semi-rigid connections and frames, and the impact of extreme loading events such as those imposed by major earthquakes. The book highlights novel methods and applications in the field and ensures that designers and other members of the construction industry gain access to the new results and procedures.
Author : FIB – International Federation for Structural Concrete
Publisher : FIB - International Federation for Structural Concrete
ISBN 13 : 0727702173
Total Pages : 55 pages
Book Rating : 4.7/5 (277 download)
Download or read book Precast concrete piles written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1986-01-01 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report covers all aspects of the uses of precast concrete piles - design, manufacture, transport, handling, pitching and driving. Both reinforced and prestressed concrete piles are dealt with and attention is paid to the use of both plan piles and those with enlarged toes. Although the report is a translation of parts of a set of three volumes prodduced in the Netherlands, those parts reproduced are internationally applicable. Special sections deal with the effects of pile driving on adjacent buildings and theor occupants - both as regards vibration and noise.
Author : Ahmad M. Itani
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (869 download)
Download or read book Seismic Performance of Steel Plate Girder Bridges with Integral Abutments written by Ahmad M. Itani and published by . This book was released on 2011 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of a pilot study on the seismic behavior and response of steel bridges with integral abutments conducted by the Department of Civil and Environmental Engineering, University of Nevada, Reno for the Federal Highway Administration.
Author : Suahil M. Albhaisi
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.:/5 (527 download)
Download or read book Maximum Lengths of Integral Abutment Bridges Based on the Strength of Abutments and the Performance of Steel H-piles Under Cyclic Thermal Loading written by Suahil M. Albhaisi and published by . This book was released on 2003 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jonathan Kunin
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (555 download)
Download or read book Integral Abutment Bridges written by Jonathan Kunin and published by . This book was released on 1999 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Saeed Eghtedar Doust
Publisher :
ISBN 13 : 9781267061737
Total Pages : pages
Book Rating : 4.0/5 (617 download)
Download or read book Extending Integral Concepts to Curved Bridge Systems written by Saeed Eghtedar Doust and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The behavior of integral abutment systems and the extension of their application to curved bridges are investigated. First, the stresses in the elements of a typical integral abutment are studied by conducting nonlinear finite element analysis using the software package Abaqus. The results are design recommendations for the details of such abutments. The effect of integral abutments on the responses of bridges is also investigated. Steel and concrete bridge systems are studied separately. The studied steel bridge systems are composed of composite I-girder superstructures and integral abutments supported on steel H-piles. A series of finite element studies for different bridge lengths and radii are conducted and the effects of several load cases on the bridges are studied. In these bridges, the stresses in the abutment piles are of critical importance from the design standpoint. The results show that horizontal curvature mitigates these stresses. The bridge movement is also studied and a procedure to find the end displacements of curved bridges is presented. Pile orientation is another significant design factor that is studied elaborately. The results indicate that, for straight bridges, the strong-axis pile bending yields lower levels of stress. A method for finding the optimum pile orientation in curved integral bridges is developed. The effect of different bearing types is also investigated. This investigation reveals the superior structural performance of elastomeric bearings compared to other bearing types. The concrete bridge systems that are studied consist of voided slab superstructures, integral abutments and concrete drilled shafts. A matrix of finite element studies is performed for different lengths and curvatures. Similar to steel I-girder bridges, it is concluded that horizontal curvature mitigates the internal forces of the abutment elements. The orientation of the concrete shafts is also examined which again shows the advantage of strong-axis orientation. Integral abutment bridges can have flexible piers integrally connected to the superstructure to eliminate all the bridge bearings. The effect of such integral piers on the internal forces of integral abutments is also examined. In these flexible piers, moment magnification can be of crucial significance. It is shown that choosing the integral abutment system reduces the magnification effects in the slender pier columns compared to jointed bridge systems.
Author :
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (1 download)
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:
Author : Mohiuddin Ali Khan
Publisher : Butterworth-Heinemann
ISBN 13 : 9780128031247
Total Pages : 512 pages
Book Rating : 4.0/5 (312 download)
Download or read book Analysis and Design of Integral Abutment Bridges written by Mohiuddin Ali Khan and published by Butterworth-Heinemann. This book was released on 2016-11-12 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although integral abutments bridges have been used successfully for 50 years, there are no uniform standards or policies regarding permissible bridge lengths, skews, details or design procedures. Their implementation is not an exact science, but rather a matter of intuition, experimentation and observation. Analysis and Design of Integral Abutment Bridges five-part treatment starts with a clear and rigorous with the types of Integral Abutment Bridges their common problems and code applications. This is quickly followed by applications for analytical methods and computer software including Lateral Load Analysis Techniques and Nonlinear Analysis of Integral Abutment Bridges. Next, the third part on the Methods of Design and Structural Details includes Foundations, Backfill and a section on Beam Design including steel, cast-in-place concrete beams and precast/prestressed concrete beams. With this book in hand, structural and bridge engineers will find a brief and valuable guide illustrating how these concepts are successfully applied in the real world. The latest published results on experimental, analytical, and field studies on the behaviour of integral abutment bridges and their components Unified guidelines based on activities such as the AASHTO/NCHRP joint taskforce, LRFD specs and FHWA-sponsored research study on Jointless Bridges The book contains sufficient coverage of the most critical behavioural aspects of integral abutment bridges, namely: Interaction between the foundation piles, the integral abutment, and the surrounding ground under cyclic loading due to temperature effects, dynamic earthquake loading, and shrinkage/creep Abutment displacements and associated earth pressure distribution Settlement of the approach fill
Author : Brad Harold Sayers
Publisher :
ISBN 13 :
Total Pages : 518 pages
Book Rating : 4.:/5 (447 download)
Download or read book Experimental and Analytical Study of Integral-abutment Bridges written by Brad Harold Sayers and published by . This book was released on 2000 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral-abutment bridges eliminate the expansion joints that are generally used to accommodate bridge length changes due to daily and annual temperature variations. Additional stresses and displacements due to the thermal loading are induced in these indeterminate structures that are not typically associated with bridge structures supported on pins and rollers. The goal of this research was to determine the effects of the thermal loading on two integral-abutment bridges. Extensive field monitoring was conducted on two, in-service, skewed, integral-abutment bridges located in central Iowa. The experimental program included long-term monitoring of longitudinal and transverse abutment displacements, relative displacements of the superstructure over the pier caps, strains in selected steel HP-shaped piles supporting the abutments, strains in several PC girders, bridge member temperatures, and end fixity of selected piles and girders in the abutments. The experimental temperature and displacement data was used to calibrate an ANSYS, finite-element model for each of the two monitored bridge structures. Experimental strains were verified and maximum strains due to the thermal loading were predicted for various members using the finite-element models.
Author :
Publisher :
ISBN 13 : 9789279221576
Total Pages : 107 pages
Book Rating : 4.2/5 (215 download)
Download or read book Economic and Durable Design of Composite Bridges with Integral Abutments (INTAB+). written by and published by . This book was released on 2012 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the design and construction of bridges, questions of sustainability, maintenance and durability become more and more important for European road administrations in addition to safety and serviceability issues. Therefore integral abutment bridges become highly attractive to designers, constructors and road administrations as they tend to be less expensive to build, easier to maintain and more economical to own over their lifetime. However in Europe less experience in building integral bridges has been gained so far. Therefore in 2005 the European RFCS-projects INTAB has been launched. Within the scope of the project, universities, consulting engineering companies as well as steel producers worked together to develop economic and safe solutions for composite bridges with integral abutments. Significant knowledge has been gained and cost-effective, environmentally friendly and sustainable bridge structures have been developed. Furthermore their durability has been proven to obtain competitive composite bridges for small and medium spans. The outcome of that project was reworked within the scope of the current project to make it available to a larger number of practitioners. To disseminate the knowledge, two workshops have been organised. A design guide was written and translated into German and French. It was completed by a design example as well as CEN-recommendations regarding actual Eurocodes. A software tool was written to help designers to perform some calculations regarding the design of integral abutment bridges. Finally a website was set up to establish a sustainable presence on the web where all information will be available in the future as well.
Author : M. Feldmann
Publisher :
ISBN 13 : 9789279145988
Total Pages : 140 pages
Book Rating : 4.1/5 (459 download)
Download or read book Economic and Durable Design of Composite Bridges with Integral Abutments written by M. Feldmann and published by . This book was released on 2010 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Frosch
Publisher :
ISBN 13 : 9781622602445
Total Pages : pages
Book Rating : 4.6/5 (24 download)
Download or read book Jointless and Smoother Bridges written by Robert J. Frosch and published by . This book was released on 2006-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral abutment bridges have been used in the United States for decades. By eliminating expensive expansion joints, the piles supporting the end bent accommodate the total thermal movement of the bridge. Currently, integral bridges are designed based upon experience, and a rational design specification has not been developed. Furthermore, the interaction of the abutment, pile, and soil remains uncertain. A better understanding regarding the behavior of this system is needed. The objective of this research is to evaluate the behavior of the integral abutment-pile system and evaluate any limitations of its use. To achieve this objective, two phases of research were conducted. The first phase was a field study that investigated the in-service pile behavior of four integral abutment bridges. The second phase was an experimental study that was used to evaluate the capability of piles typically used in integral abutment bridges. Nine low-cycle, large amplitude lateral displacement pile tests were conducted. Throughout both phases, analytical investigations were also conducted. To develop simplified modeling techniques that sufficiently account for soil-pile interaction, the piles supporting abutments were analytically modeled and calibrated based on the field and experimental results. A parametric study was also performed with variables including pile type, pile orientation, axial load, pile length, and soil type. The results of these phases were evaluated and design recommendations were developed based on these results. Overall, the design recommendations provide for an extension in the length limits often used for integral bridges. The extension of these limits can result in a reduction in bridge construction and maintenance costs for a large number of structures that cannot currently be built using this structural system.
Author : Roy L. Eriksson
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (318 download)
Download or read book The State of the Art of Precast/prestressed Integral Bridges written by Roy L. Eriksson and published by . This book was released on 2001 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
