Design Of Precast Prestressed Bridge Girders Made Continuous
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Design Of Precast Prestressed Bridge Girders Made Continuous
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Author : R. G. Oesterle
language : en
Publisher: Transportation Research Board National Research
Release Date : 1989
Design Of Precast Prestressed Bridge Girders Made Continuous written by R. G. Oesterle and has been published by Transportation Research Board National Research this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Technology & Engineering categories.
This report documents and presents results of a study to determine time-dependent behavior and relevant design criteria for simple-span precast, prestressed bridge girders made continuous. A questionnaire was used to determine current practice. Creep and shrinkage tests of steam-cured concrete loaded at an early age were made. Computer simulations were used to investigate the effects of time-dependent material behavior and variation in design parameters on the effective continuity for live load plus impact. The findings suggest that positive moment connections in the diaphragms at the piers are not required and provide no structural advantages. The findings also suggest that effective continuity for live load plus impact can vary from 0 to 100% dependent on the design parameters and timing of construction. Computer analyses were also used to determine an upper limit for the amount of negative moment reinforcement over the supports to insure full moment redistribution and attainment of maximum bridge strength. New computer programs were developed for simplified analysis to determine time-dependent effects and service moments. Recommendations for design procedures were presented and design examples given.
Connection Of Simple Span Precast Concrete Girders For Continuity
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Author : Richard A. Miller (Professional engineer)
language : en
Publisher: Transportation Research Board
Release Date : 2004
Connection Of Simple Span Precast Concrete Girders For Continuity written by Richard A. Miller (Professional engineer) and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Architecture categories.
Introduction and Research Approach -- Findings -- Interpretation, Appraisal, and Application -- Interpretation, Appraisal, and Application -- References -- Appendixes.
Methods For Increasing Live Load Capacity Of Existing Highway Bridges
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Author : Roger A. Dorton
language : en
Publisher: Transportation Research Board
Release Date : 1997
Methods For Increasing Live Load Capacity Of Existing Highway Bridges written by Roger A. Dorton and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Technology & Engineering categories.
This synthesis will be of interest to state department of transportation bridge design and structural engineers, bridge consultants, and others involved in applied and research methods for increasing the live load capacity of existing highway bridges. The synthesis describes the current state of the practice for the various methods used to increase the live load capacity of existing highway bridges. This is done predominantly for bridges in the short- to medium-span range. Information on the more common bridge material types is presented. There is an emphasis on superstructure rather than substructure strengthening.
Precast Concrete Bridge Continuity Over Piers
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Author : FIB – International Federation for Structural Concrete
language : en
Publisher: FIB - International Federation for Structural Concrete
Release Date : 2020-07-01
Precast Concrete Bridge Continuity Over Piers written by FIB – International Federation for Structural Concrete and has been published by FIB - International Federation for Structural Concrete this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-01 with Technology & Engineering categories.
Concrete bridges are an important part of today's road infrastructure. An important part of those concrete bridges is to a large extent prefabricated. Precast concrete enables all the advantages of an industrialized process to be fully utilized. Contemporary concrete mixtures are used to realize high-strength bridge girders and piers that exactly meet the requirements set, both structurally and aesthetically, with a small ecological footprint. Sustainable and durable! On the construction site, there is no need for complex formwork, the execution time is drastically reduced and where road, water and rail traffic on or under the bridge has to be temporarily interrupted, it is only minimally inconvenienced during the execution of the project. There is a wide variety of prefabricated bridges. In 2004, the fib commission on prefabrication already published the Bulletin 29 Precast concrete bridges which, in addition to the history of prefabricated bridges, also gave an overview of the different bridge types and structural systems. This document elaborates on one specific structural system: the continuous bridge. Task Group 6.5 "Precast concrete bridges" discusses in detail how to achieve continuity over the piers with precast elements. This bulletin bundles the experiences of experts in the field of bridge design so that less experienced designers would be able to identify the points of attention and make a correct design. In addition to the theoretical considerations, the principles are tested against three realizations in the USA and Europe. Commission 6 thanks the Co-Conveners Maher Tadros and Hugo Corres and all active members of the Task Group for sharing their knowledge and experience and for the successful realization of this bulletin.
Theory And Design Of Bridges
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Author : Petros P. Xanthakos
language : en
Publisher: John Wiley & Sons
Release Date : 1994
Theory And Design Of Bridges written by Petros P. Xanthakos and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Technology & Engineering categories.
Indeed, this essential working reference for practicing civil engineers uniquely reflects today's gradual transition from allowable stress design to Load and Resistance Factor Design by presenting LRFD specifications - developed from research requested by AASH-TO and initiated by the NCHRP - which spell out new provisions in areas ranging from load models and load factors to bridge substructure elements and foundations.
Continuous And Integral Bridges
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Author : B. Pritchard
language : en
Publisher: CRC Press
Release Date : 1994-06-23
Continuous And Integral Bridges written by B. Pritchard and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-06-23 with Architecture categories.
This book contains the invited contributions to the 1993 Henderson Colloquium organised by the British Group of IABSE (International Association for Bridge and Structural Engineering). It provides an international review of new techniques of designing and constructing joint-free bridges - an approach which is rapidly being developed and used in man
Extending Span Ranges Of Precast Prestressed Concrete Girders
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Author : Reid W. Castrodale
language : en
Publisher: Transportation Research Board
Release Date : 2004
Extending Span Ranges Of Precast Prestressed Concrete Girders written by Reid W. Castrodale and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Technology & Engineering categories.
At head of title: National Cooperative Highway Research Program.
Development Of Design Specifications And Commentary For Horizontally Curved Concrete Box Girder Bridges
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Author : Nutt, Redfield, and Valentine
language : en
Publisher: Transportation Research Board
Release Date : 2008
Development Of Design Specifications And Commentary For Horizontally Curved Concrete Box Girder Bridges written by Nutt, Redfield, and Valentine and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Technology & Engineering categories.
This report provides specifications, commentary, and examples for the design of horizontally curved concrete box-girder highway bridges. The report details the development of the design procedures. Recommended Load and Resistance Factor Design (LRFD) specifications and design examples illustrating the application of the design methods and specifications are included in appendixes (available on the TRB website at http://trb.org/news/blurb_detail.asp?id=9596).
Conceptual Design Of Precast Concrete Bridge Superstructures
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Author : FIB – International Federation for Structural Concrete
language : en
Publisher: FIB - International Federation for Structural Concrete
Release Date : 2021-08-01
Conceptual Design Of Precast Concrete Bridge Superstructures written by FIB – International Federation for Structural Concrete and has been published by FIB - International Federation for Structural Concrete this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-01 with Technology & Engineering categories.
Concrete bridges are an important part of today's road infrastructure. An important part of those concrete bridges is to a large extent prefabricated. Precast concrete enables all the advantages of an industrialized process to be fully utilized. Contemporary concrete mixtures are used to realize high-strength bridge girders and piers that exactly meet the requirements set, both structurally and aesthetically, with a small ecological footprint. Sustainable and durable! On the construction site, there is no need for complex formwork, the execution time is drastically reduced and where road, water and rail traffic on or under the bridge has to be temporarily interrupted, it is only minimally inconvenienced during the execution of the project. Bridges capture the imagination. In addition to their pure functionality, overcoming a height difference, they offer designers unprecedented opportunities to shape their creativity, including when using precast concrete. This bulletin, prepared by the experts of Task Group 6.5 'Precast concrete bridges', takes a closer look at the conceptual (preliminary) design of prefabricated concrete bridges. The bulletin does not have the ambition to define the umbrella term 'conceptual design' but shows in a pragmatic way, using 24 examples spread all over the world, how leading designers use this methodology to select from the many possibilities to arrive at an ideal solution taking into account all design conditions. One often reads that experience is a necessary condition for good conceptual design. The pooled knowledge and experience in this bulletin already provide the reader with a good head start. Commission 6 thanks the former convener of the Task Group Hugo Corres, editor of this document, and the current co-conveners Marcello Waimberg and Ken-ichi Kata as well as all active members of the Task Group for sharing their knowledge and experience and for the successful realization of this bulletin.
Bridge Design For Economy And Durability
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Author : Brian Pritchard
language : en
Publisher: Thomas Telford
Release Date : 1992
Bridge Design For Economy And Durability written by Brian Pritchard and has been published by Thomas Telford this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Technology & Engineering categories.
Describes several bridging concepts, which were developed and successfully applied during the author's forty years of close involvement with UK and international bridge design, construction, maintenance and research. The concepts mainly apply to the small/medium span range of bridges and viaducts.