National Academies Press: OpenBook

Design of Concrete Bridge Beams Prestressed with CFRP Systems (2019)

Chapter: Attachment A - Proposed AASHTO LRFD Bridge Design Guide Specifications and Material Specifications for Concrete Bridge Beams Prestressed with CFRP Systems

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Page 73
Suggested Citation:"Attachment A - Proposed AASHTO LRFD Bridge Design Guide Specifications and Material Specifications for Concrete Bridge Beams Prestressed with CFRP Systems ." National Academies of Sciences, Engineering, and Medicine. 2019. Design of Concrete Bridge Beams Prestressed with CFRP Systems. Washington, DC: The National Academies Press. doi: 10.17226/25582.
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Page 73

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73 The proposed AASHTO LRFD Bridge Design Guide Specifications and Material Specifica- tions for Concrete Bridge Beams Prestressed with CFRP Systems prepared by the NCHRP Project 12-97 research team at the University of Houston is not reproduced herein. These guide specifications were provided to the AASHTO Committee on Bridges and Structures for consideration, and were subsequently published as the AASHTO Guide Specifications for the Design of Concrete Bridge Beams Prestressed with Carbon Fiber Reinforced Polymer (CFRP) Systems, 1st Edition (CFRP-1). A T T A C H M E N T A Proposed AASHTO LRFD Bridge Design Guide Specifications and Material Specifications for Concrete Bridge Beams Prestressed with CFRP Systems

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Carbon fiber reinforced polymer (CFRP) is becoming a recognized alternative to traditional construction materials in a wide range of civil engineering applications. An example of such applications is the use of CFRP cables or bars as prestressing tendons for concrete bridge girders, especially in aggressive environments where steel prestressing strands are susceptible to corrosion.

Despite their promise, CFRP prestressing tendons have not frequently been used for bridge construction in the United States; their use has been hampered by the lack of recognized design specifications.

NCHRP (National Cooperative Highway Research Program) Research Report 907: Design of Concrete Bridge Beams Prestressed with CFRP Systems proposes guidelines and presents research findings that are expected to advance and facilitate the use of CFRP systems in bridge applications. In addition, five design examples that illustrate the step-by-step use of the proposed guide specifications are provided.

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