Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Madison County Bridge
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Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Black Hawk County
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Author : Terry J. Wipf
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Black Hawk County written by Terry J. Wipf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Bridges categories.
In July 2006, construction began on an accelerated bridge project in Boone County, Iowa that was composed of precast substructure elements and an innovative, precast deck panel system. The superstructure system consisted of full-depth deck panels that were prestressed in the transverse direction, and after installation on the prestressed concrete girders, post-tensioned in the longitudinal direction. Prior to construction, laboratory tests were completed on the precast abutment and pier cap elements. The substructure testing was to determine the punching shear strength of the elements. Post-tensioning testing and verification of the precast deck system was performed in the field. The forces in the tendons provided by the contractor were verified and losses due to the post-tensioning operation were measured. The stress (strain) distribution in the deck panels due to the post-tensioning was also measured and analyzed. The entire construction process for this bridge system was documented. Representatives from the Boone County Engineers Office, the prime contractor, precast fabricator, and researchers from Iowa State University provided feedback and suggestions for improving the constructibility of this design.
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Madison County Bridge
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Author : Terry J. Wipf
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Madison County Bridge written by Terry J. Wipf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Bridges categories.
In July 2006, construction began on an accelerated bridge project in Boone County, Iowa that was composed of precast substructure elements and an innovative, precast deck panel system. The superstructure system consisted of full-depth deck panels that were prestressed in the transverse direction, and after installation on the prestressed concrete girders, post-tensioned in the longitudinal direction. Prior to construction, laboratory tests were completed on the precast abutment and pier cap elements. The substructure testing was to determine the punching shear strength of the elements. Post-tensioning testing and verification of the precast deck system was performed in the field. The forces in the tendons provided by the contractor were verified and losses due to the post-tensioning operation were measured. The stress (strain) distribution in the deck panels due to the post-tensioning was also measured and analyzed. The entire construction process for this bridge system was documented. Representatives from the Boone County Engineers Office, the prime contractor, precast fabricator, and researchers from Iowa State University provided feedback and suggestions for improving the constructibility of this design.
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Madison County Bridge
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Author :
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Field Testing And Evaluation Of A Precast Concrete Bridge Madison County Bridge written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Concrete bridges categories.
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Of Full Depth Precast Prestressed Concrete Deck Panels Boone County Bridge
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Author : Terry J. Wipf
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction Laboratory Testing Of Full Depth Precast Prestressed Concrete Deck Panels Boone County Bridge written by Terry J. Wipf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Bridges categories.
Also available via the Internet.
Precast Concrete Elements For Accelerated Bridge Construction
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Author :
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Concrete bridges categories.
Precast Concrete Elements For Accelerated Bridge Construction
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Author : Brent Phares
language : en
Publisher:
Release Date : 2009
Precast Concrete Elements For Accelerated Bridge Construction written by Brent Phares and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Bridges categories.
The importance of rapid construction technologies has been recognized by the Federal Highway Administration (FHWA) and the Iowa DOT Office of Bridges and Structures. Recognizing this a two-lane single-span precast box girder bridge was constructed in 2007 over a stream. The bridge's precast elements included precast cap beams and precast box girders. Precast element fabrication and bridge construction were observed, two precast box girders were tested in the laboratory, and the completed bridge was field tested in 2007 and 2008.
Evaluation Of The Buena Vista Ibrd Bridge
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Author :
language : en
Publisher:
Release Date : 2012
Evaluation Of The Buena Vista Ibrd Bridge written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Bridges categories.
The need to construct bridges that last longer, are less expensive, and take less time to build has increased. The importance of accelerated bridge construction (ABC) technologies has been realized by the Federal Highway Administration (FHWA) and the Iowa Department of Transportation (DOT) Office of Bridges and Structures. This project is another in a series of ABC bridge projects undertaken by the Iowa DOT. Buena Vista County, Iowa, with the assistance of the Iowa Department of Transportation (DOT) and the Bridge Engineering Center (BEC) at Iowa State University, constructed a two-lane single-span precast box girder bridge, using rapid construction techniques. The design involved the use of precast, pretensioned components for the bridge superstructure, substructure, and backwalls. This application and demonstration represents an important step in the development and advancement of these techniques in Iowa as well as nationwide. Prior funding for the design and construction of this bridge (including materials) was obtained through the FHWA Innovative Bridge Research and Deployment (IBRD) Program. The Iowa Highway Research Board (IHRB) provided additional funding to test and evaluate the bridge. This project directly addresses the IBRD goal of demonstrating (and documenting) the effectiveness of innovative materials and construction techniques for the construction of new bridge structures. Evaluation of performance was formulated through comparisons with design assumptions and recognized codes and standards including American Association of State Highway and Transportation Officials (AASHTO) specifications.
Modified Sheet Pile Abutments For Low Volume Road Bridges
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Author : Ryan Richard Evans
language : en
Publisher:
Release Date : 2012
Modified Sheet Pile Abutments For Low Volume Road Bridges written by Ryan Richard Evans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Bridges categories.
To date there have been few investigations of the substructures in low-volume road (LVR) bridges. Steel sheet piling has the potential to provide an economical alternative to concrete bridge abutments, but it needs investigation with regard to vertical and lateral load resistance, construction methods, and performance monitoring. The objectives of this project were to develop a design approach for sheet pile bridge abutments for short-span low-volume bridges, formulate an instrumentation and monitoring plan to evaluate performance of sheet pile abutment systems, and understand the cost and construction effort associated with building the sheet pile bridge abutment demonstration project. Three demonstration projects (Boone, Blackhawk, and Tama Counties) were selected for the design, construction, and monitoring of sheet pile abutments bridges. Each site was unique and required site-specific design and instrumentation monitoring. The key findings from this study include the following: (1) sheet pile abutment bridges provide an effective solution for LVR bridges, (2) the measured stresses and deflection were different from the assumed where the differences reflect conservatisms in the design and the complex field conditions, and (3) additional research is needed to optimize the design.
Journal Of The American Concrete Institute
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Author : American Concrete Institute
language : en
Publisher:
Release Date : 1968
Journal Of The American Concrete Institute written by American Concrete Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Concrete categories.
Includes the ACT news letter (title varies slightly).
Thomas Register Of American Manufacturers And Thomas Register Catalog File
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Author :
language : en
Publisher:
Release Date : 2002
Thomas Register Of American Manufacturers And Thomas Register Catalog File written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Industrialists categories.
Vols. for 1970-71 includes manufacturers' catalogs.