Effect of Transverse Reinforcement on the Flexural Behavior of Continuous Concrete Beams Reinforced with FRP
Continuous concrete beams are structural elements commonly used in structures that might be exposed to extreme weather conditions and the application of deicing salts, such as bridge overpasses and parking garages. In such structures, reinforcing continuous concrete beams with the noncorrodible fiber-reinforced polymer (FRP) bars is beneficial to avoid steel corrosion. However, the linear-elastic behavior of FRP materials makes the ability of continuous beams to redistribute loads and moments questionable. A total of seven full-scale continuous concrete beams were tested to failure. Six beams were reinforced with glass fiber-reinforced polymer (GFRP) longitudinal bars, whereas one was reinforced with steel as control. The specimens have rectangular cross section of 200×300 mm and are continuous over two spans of 2,800 mm each. Both steel and GFRP stirrups were used as transverse reinforcement. The material, spacing, and amount of transverse reinforcement were the primary investigated parameters in this study. In addition, the experimental results were compared with the code equations to calculate the ultimate capacity. The experimental results showed that moment redistribution in FRP-reinforced continuous concrete beams is possible and is improved by increasing the amount of transverse reinforcement. Also, beams reinforced with GFRP stirrups illustrated similar performance compared with their steel-reinforced counterparts.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/10900268
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Supplemental Notes:
- Copyright © 2011 American Society of Civil Engineers
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Authors:
- El-Mogy, Mostafa
- El-Ragaby, Amr
- El-Salakawy, Ehab
- Publication Date: 2011-10-1
Language
- English
Media Info
- Media Type: Print
- Features: Photos; References; Tables;
- Pagination: pp 672-681
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Serial:
- Journal of Composites for Construction
- Volume: 15
- Issue Number: 5
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0268
- EISSN: 1943-5614
- Serial URL: http://ascelibrary.org/journal/jccof2
Subject/Index Terms
- TRT Terms: Beams; Corrosion protection; Fiber reinforced polymers; Flexural strength; Glass fiber reinforced plastics; Moments (Mechanics); Overpasses; Parking garages; Reinforced concrete; Serviceability; Spacing; Transverse reinforcement; Weather conditions; Weatherproofing
- Uncontrolled Terms: Concrete beams; Continuous beams; Moment distribution
- Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; Materials; Terminals and Facilities; I24: Design of Bridges and Retaining Walls; I30: Materials; I32: Concrete;
Filing Info
- Accession Number: 01357500
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Nov 2 2011 3:09PM