Title:
6-Span CFRP-PC/GFRP-RC Bridge over Placido Bayou
Author(s):
Christopher Gamache, Ananda Bergeron, and Pooya Farahbakhsh
Publication:
Symposium Paper
Volume:
346
Issue:
Appears on pages(s):
126-134
Keywords:
CFRP-PC; corrosion resilient; Florida slab beam; GFRP-RC; link slab SP-346: Field Applications of Non-Conventional Reinforcing and Strengthening Methods for Bridges and Structures 126
DOI:
10.14359/51730498
Date:
1/1/2021
Abstract:
The intent of this paper is to provide an illustrative example of a municipal bridge replacement design project utilizing fiber reinforced polymer materials approved for use by the Florida Department of Transportation. Specifically this paper describes the design of the Nathaniel J. Upham (40th Avenue NE) Bridge replacement project and illustrates the application of carbon fiber reinforced polymer (CFRP) prestressing tendons and glass fiber
reinforced polymer (GFRP) reinforcing bars in both precast and cast-in-place concrete elements. Due to the structure’s high level of exposure in the extremely aggressive environment, the design for the replacement bridge focused on concrete elements that were durable and resilient to the effects of corrosion in those conditions. Prestressed and castin-place concrete elements with GFRP and CFRP reinforcement and prestressing tendons were utilized for the primary structural elements with direct exposure to salt water. In addition, link slabs with GFRP reinforcing were utilized at each intermediate bent to improve the bridge’s performance. The design of the bridge elements followed the Florida Department of Transportation’s design guidelines and requirements. The bridge replacement project is currently at the completion of the design phase and is scheduled to be advertised in the early summer of 2020 with the start of construction anticipated in the fall of 2020.
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