Analytical Models and Guidelines for the Ductility Enhancement of Circular Reinforced Concrete Single-Column Bents Using Fiber-Reinforced Polymers
The target displacement ductility requirements for circular RC single-column bridge bents are considered using a proposed multifailure mode algorithm to determine the required thickness of fiber-reinforced polymer wraps (FRPs). The procedure is developed using two in-house computer algorithms, PACCC (plastic analysis of circular concrete columns) and PACCC-FRP, to generate a moment-curvature analysis using circular segment slices and subsequent failure mode predictions in single-column bents for both FRP-wrapped and unwrapped circular RC sections. The results of the study showed good comparison to published experimental tests at the ultimate force-deflection states of RC sections and against three commercial “software test beds.” The study uses PACCC-FRP to show that single columns experiencing a brittle failure may be retrofitted with FRP wraps in order to increase the displacement ductility and satisfy target ductility values within the ductility wrap envelope, or wrap-saturation level, as established herein.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
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Authors:
- Abela, C M
- Attard, T L
- Publication Date: 2011-1
Language
- English
Media Info
- Media Type: Print
- Features: Bibliography; Figures;
- Pagination: pp 171-176
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Serial:
- Journal of Bridge Engineering
- Volume: 16
- Issue Number: 01
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Algorithms; Bents; Bridges; Ductility; Fiber reinforced polymers; Percent saturation; Reinforced concrete
- Uncontrolled Terms: Circular columns; Failure modes
- Subject Areas: Bridges and other structures; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;
Filing Info
- Accession Number: 01328102
- Record Type: Publication
- Files: TRIS
- Created Date: Jan 21 2011 1:03PM