Prestress Losses in Pretensioned High-strength Concrete Bridge Girders

Prestress Losses in Pretensioned High-strength Concrete Bridge Girders

Author: Maher K. Tadros

Publisher: Transportation Research Board

Published: 2003

Total Pages: 73

ISBN-13: 030908766X

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"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.


CONCRETE Innovations in Materials, Design and Structures

CONCRETE Innovations in Materials, Design and Structures

Author: FIB – International Federation for Structural Concrete

Publisher: FIB - Féd. Int. du Béton

Published: 2019-05-27

Total Pages: 2322

ISBN-13: 2940643008

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This Proceedings contains the papers of the fib Symposium “CONCRETE Innovations in Materials, Design and Structures”, which was held in May 2019 in Kraków, Poland. This annual symposium was co-organised by the Cracow University of Technology. The topics covered include Analysis and Design, Sustainability, Durability, Structures, Materials, and Prefabrication. The fib, Fédération internationale du béton, is a not-for-profit association formed by 45 national member groups and approximately 1000 corporate and individual members. The fib’s mission is to develop at an international level the study of scientific and practical matters capable of advancing the technical, economic, aesthetic and environmental performance of concrete construction. The fib, was formed in 1998 by the merger of the Euro-International Committee for Concrete (the CEB) and the International Federation for Prestressing (the FIP). These predecessor organizations existed independently since 1953 and 1952, respectively.


HRIS Abstracts

HRIS Abstracts

Author: National Research Council (U.S.). Highway Research Board

Publisher:

Published: 1987

Total Pages: 840

ISBN-13:

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Prestressed Concrete Bridges

Prestressed Concrete Bridges

Author: Christian Menn

Publisher: Birkhäuser

Published: 2012-12-06

Total Pages: 546

ISBN-13: 3034891318

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This book was written to make the material presented in my book, Stahlbetonbrucken, accessible to a larger number of engineers throughout the world. A work in English, the logical choice for this task, had been contemplated as Stahlbetonbrucken was still in its earliest stages of preparation. The early success of Stahlbetonbrucken provided significant impetus for the writing of Prestressed Concrete Bridges, which began soon after the publication of its predecessor. The present work is more than a mere translation of Stahlbetonbrucken. Errors in Stahlbetonbrucken that were detected after publication have been corrected. New material on the relation between cracking in concrete and corrosion of reinforce ment, prestressing with unbonded tendons, skew-girder bridges, and cable-stayed bridges has been added. Most importantly, however, the presentation of the material has been extensively reworked to improve clarity and consistency. Prestressed Concrete Bridges can thus be regarded as a thoroughly new and improved edition of its predecessor.


Design and Performance Testing of Prestressed Precast Reinforced Concrete Double-tee Beams with Web Openings

Design and Performance Testing of Prestressed Precast Reinforced Concrete Double-tee Beams with Web Openings

Author:

Publisher:

Published: 1997

Total Pages: 148

ISBN-13:

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Conventional precast reinforced concrete double-tee joists may be made more structurally efficient by incorporating large openings in the web to accommodate environmental pipes and ducts. Double-tee joists with web openings may also reduce the total required building height, which would significantly lower costs for labor and materials during new construction. This report presents a method for designing prestressed precast reinforced concrete double-tee joists with web openings. Alternative designs were investigated by varying parameters such as prestressing strand layout, opening pier width, and pier reinforcement. Test results from six prestressed concrete joists are presented to substantiate finite element analysis results. The effect of web openings on beam behavior is discussed, and a simple method for designing the beams is presented. It is concluded that double-tee joists can be designed and manufactured with many web openings without jeopardizing beam strength. However, due to the effect of concentrated loading on shear failure modes in the tests, double-tee designs with web openings are recommended only floor and roof applications where only uniform loading will occur. Material costs associated with this design are slightly higher than for conventional double-tee members, but the design promotes an overall reduction in new construction costs.