National Academies Press: OpenBook

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

Chapter: Attachment B - Design Examples

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« Previous: Attachment A - Proposed AASHTO LRFD Bridge Design Guide Specifications and Material Specifications for Concrete Bridge Beams Prestressed with CFRP Systems
Page 74
Suggested Citation:"Attachment B - Design Examples." 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 74

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74 The design examples were prepared by the NCHRP Project 12-97 research team at the University of Houston to illustrate the use of the proposed design approach. These design examples are not reproduced herein; they are available online at www.trb.org and can be found by searching for “NCHRP Research Report 907.” A T T A C H M E N T B Design Examples

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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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