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Experimental Investigation Of A Prestressed Concrete Girder Bridge Model
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Book Synopsis Experimental Investigation of a Prestressed Concrete Girder Bridge Model by : Ryan Robert Paradis
Download or read book Experimental Investigation of a Prestressed Concrete Girder Bridge Model written by Ryan Robert Paradis and published by . This book was released on 1998 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loads were applied to the structure in the undamaged condition to obtain baseline behavior and at various levels of damage. Damage was inflicted to the exterior girder of the bridge to simulate field damage. Damage consisted of both removal of concrete and the severing of the prestressing strands. Concrete and steel were removed in small increments so that critical levels of damage could be determined. A total of thirteen levels of damage were inflicted on the exterior girder, each subjected to various load tests. The results of the tests are compared throughout the range of damage levels to determine bridge behavior in the damaged condition.
Book Synopsis Prestress Losses in Pretensioned High-strength Concrete Bridge Girders by : Maher K. Tadros
Download or read book Prestress Losses in Pretensioned High-strength Concrete Bridge Girders written by Maher K. Tadros and published by Transportation Research Board. This book was released on 2003 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The HCM includes three printed volumes (Volumes 1-3) that can be purchased from the Transportation Research Board in print and electronic formats. Volume 4 is a free online resource that supports the rest of the manual. It includes: Supplemental chapters 25-38, providing additional details of the methodologies described in the Volume 1-3 chapters, example problems, and other resources; A technical reference library providing access to a significant portion of the research supporting HCM methods; Two applications guides demonstrating how the HCM can be applied to planning-level analysis and a variety of traffic operations applications; Interpretations, updates, and errata for the HCM (as they are developed);A discussion forum allowing HCM users to ask questions and collaborate on HCM-related matters; and Notifications of chapter updates, active discussions, and more via an optional e-mail notification feature."--Publisher.
Book Synopsis Experimental Investigation of Elastic Load Distribution Characteristics of a Prestressed Concrete Multi-beam Bridge by : Frederick Lane Moreadith
Download or read book Experimental Investigation of Elastic Load Distribution Characteristics of a Prestressed Concrete Multi-beam Bridge written by Frederick Lane Moreadith and published by . This book was released on 1961 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Testing and Analysis of a Continuous Prestressed Concrete Box Girder Bridge by : M. J. N. Priestley
Download or read book Testing and Analysis of a Continuous Prestressed Concrete Box Girder Bridge written by M. J. N. Priestley and published by . This book was released on 1977 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Extending Span Ranges of Precast Prestressed Concrete Girders by : Reid Wilson Castrodale
Download or read book Extending Span Ranges of Precast Prestressed Concrete Girders written by Reid Wilson Castrodale and published by Transportation Research Board. This book was released on 2004 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Book Synopsis An Experimental Study of Static and Dynamic Responses of Prestressed Concrete Bos Girder Bridges by :
Download or read book An Experimental Study of Static and Dynamic Responses of Prestressed Concrete Bos Girder Bridges written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental data from static and dynamic tests on 1/7-scale direct models of simply supported, one- and two-cell, box girder bridges are presented. Variation of flexural and torsional stiffnesses and dynamic characteristics, such as the natural frequency of vibrations and dampinig ratios of the bridge models at different levels of cracking damage, are examined; in turn, these dynamic characteristics can be used to estimate the cracking damage in the bridge. the physical model proved to be an adequate tool for the study of static and dynamic responses of box girder bridges at all load levels.
Book Synopsis Behavior of a One Cell Prestressed Concrete Box Girder Bridge by : Amar Hadj-Arab
Download or read book Behavior of a One Cell Prestressed Concrete Box Girder Bridge written by Amar Hadj-Arab and published by . This book was released on 1987 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Design of Bridges by : C. Yilmaz
Download or read book Analysis and Design of Bridges written by C. Yilmaz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Proceedings of the NATO Advanced Study Institute on Analysis and Design of Bridges held at ~e§me, lzmir, Turkey from 28 June 1982 to 9 July 1982 are contained in the present volume. The Advanced Study Institute was attended by 37 lecturers and participants from 10 different countries. The Organizing Committee consisted of Professors P. Gtilkan, A. C. Scordelis, S. T. Wasti and 9. Yl. lmaz. The guidelines set by NATO for the Advanced Study Institute require it to serve not only as an efficient forum for the dissemination of available advanced knowledge to a selected group of qualified people but also as a platform for the exploration of future research possibilities in the scientific or engineering areas concerned. The main topics covered by the present Advanced Study Institute were the mathematical modelling of bridges for better analysis and the scientific assessment of bridge behaviour for the introduction of improved design procedures. It has been our observation that as a result of the range and depth of the lectures presented and the many informal discussions that took place, ideas became fissile, the stimulus never flagged and many gaps in the engineering knowledge of the participants were "bridged". Here we particularly wish to mention that valuable informal presenta tions of research work were made during the course of the Institute by Drs. Friedrich, Karaesmen, Lamas and Parker.
Book Synopsis Behaviour of a Two-cell Prestressed Concrete Box Girder Bridge by : Karim Joucdar
Download or read book Behaviour of a Two-cell Prestressed Concrete Box Girder Bridge written by Karim Joucdar and published by . This book was released on 1988 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous Prestressed Concrete Girder Bridges by : Mary Beth Deisz Hueste
Download or read book Continuous Prestressed Concrete Girder Bridges written by Mary Beth Deisz Hueste and published by . This book was released on 2016 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Texas Department of Transportation designs typical highway bridge structures as simple span systems using standard precast, pretensioned girders. Spans are limited to about 150 ft due to weight and length restrictions on transporting the precast girder units from the prestressing plant to the bridge site. Such bridge construction, while economical from an initial cost point of view, may become somewhat limiting when longer spans are needed. This project focused on developing additional economical design alternatives for longer span bridges with main spans ranging from 150-300 ft, using continuous precast, prestressed concrete bridge structures with in-span splices. Phase 1 of this study focused on evaluating the current state-of-the-art and practice relevant to continuous precast concrete girder bridges and recommending suitable continuity connections for typical Texas bridge girders; the findings are documented in the Volume 1 project report. This report summarizes Phase 2 of the research including detailed design examples for shored and partially shored construction, results of a parametric design study, and results of an experimental program that tested a full-scale girder containing three splice connections. The parametric design study indicated that for bridges spanning from 150-300 ft, continuous precast, prestressed concrete girder bridges with in-span splices can provide an economical alternative to steel girder bridges and segmental concrete box girder construction. The tested splice connections performed well under service level loads. However, the lack of continuity of the pretensioning through the splice connection region had a significant impact on the behavior at higher loads approaching ultimate conditions. Improved connection behavior at ultimate conditions is expected through enhanced connection details. Recommendations for design of continuous spliced precast girders, along with several detailing suggestions are discussed in the report.
Book Synopsis Precast-prestressed Concrete Bridges 1 by : Paul H. Kaar
Download or read book Precast-prestressed Concrete Bridges 1 written by Paul H. Kaar and published by . This book was released on 1960 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Cracking in Continuous Prestressed Concrete I-girder Bridges by : Danielle Kleinhans Stone
Download or read book Investigation of Cracking in Continuous Prestressed Concrete I-girder Bridges written by Danielle Kleinhans Stone and published by . This book was released on 1999 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCHRP Report written by and published by . This book was released on 1964 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Test and Analysis of Two Prestressed Concrete Bridges After Deck Replacement with Frp Panels by : Madhan Kumar Kantha Samy
Download or read book Field Test and Analysis of Two Prestressed Concrete Bridges After Deck Replacement with Frp Panels written by Madhan Kumar Kantha Samy and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges B-0071 and B-0171 in Hamilton County, Ohio have been in service for about fifty years. They are short span bridges with prestressed concrete girders. Until late 2001, they had conventional reinforced concrete decks, which have been replaced with fiber reinforced polymer (FRP) decks. Two girders in bridge B-0171 were replaced with new prestressed girders. These bridges are significant as there are few instances of FRP decks on concrete girders. The Hamilton County Engineers Office contracted with the Civil Engineering Department at the University of Cincinnati to perform load testing on the bridges. Information gained from this research will seek to confirm the safety of the new technology, evaluate construction and design techniques with reference to the FRP deck, and determine overall performance of the bridge to provide understanding of the system. The two short span prestressed concrete bridges with fiber reinforced polymer decks were subjected to four sets of nondestructive truckload testing. Strain gauges were placed along the height of the girder cross-section, and longitudinally and transversely across the bottom of the deck. Displacement transducers were placed to measure overall girder displacement, relative deck displacement, deck panel separation, and deck-girder connection separation. A three-dimensional finite element analysis model was created to replicate the performance of each bridge. The two new prestressed girders in bridge B-0171 strengthened the bridge considerably and increased its load carrying capacity. But the old prestressed girders in bridge B-0071 and bridge B-0171 did not show any sign of deterioration. The four sets of test data collected over a two-year period show that the age effect on structural behavior is very small for both the bridges. The deck had very little influence on the distribution of loads in the structure for these bridges. Due to low deck stiffness and incomplete connectivity, the FRP deck did little to strengthen the girders. The long term monitoring of the deck result complied with the short term testing as reported by Eder8. The finite element model closely matched with the structural components of the original bridge. The new improved model is a better representation as it was calibrated with four sets of field data collected over a period of two years. The field test data from both tests shows that the girders are simply supported on the abutment. But the girders in the model are designed as fixed end beams to have a reasonable value for the modulus of concrete used in the model. In reality it can be assumed that the support condition is between fixed and simply supported. It was also demonstrated that the deck had very little influence on the distribution of loads in the structure for these bridges. The majority of the load transfer between girders was most likely due to the diaphragms. The Impact Factor based on one set of experimental results was 1.217. However, for analysis the LRFD value of 1.33 was used. The Load Rating Factor for bridge B-0071 was 1.66 and for bridge B-0171 was 2.48 with the governing truck loading being the Design load Type Tandem. These rating factors were based on girder performance only due to insufficient deck information.
Book Synopsis Investigation of Shear Behavior of Prestressed Concrete Bridge Girders by :
Download or read book Investigation of Shear Behavior of Prestressed Concrete Bridge Girders written by and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Investigations of the Thermal Behavior of Prestressed Concrete Bridge Girders Including Imperfections by : Jonghang Lee
Book Synopsis Behaviour of a One Cell Prestressed Concrete Box Girder Bridge Experimental Study by : Amar Hadj-arab
Download or read book Behaviour of a One Cell Prestressed Concrete Box Girder Bridge Experimental Study written by Amar Hadj-arab and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of the behaviour of a 1:7.10 scale direct physical model of a simply supported single span, one cell, prestressed concrete box girder bridge is presented. The experimental techniques developed for construction and the instrumentation required during testing of the bridge model are summarized. Variation of the flexural stiffness and the dynamic characteristics, such as the damping ratio and the fundamental natural frequency, of the bridge model at different level of damage are presented. [...].
