This study presents experimental results from nine large-scale circular concrete columns
reinforced with longitudinal and transverse glass fiber-reinforced polymer (GFRP) bars. These
specimens were tested under lateral cyclic quasi-static loading while simultaneously subjected
to constant axial load. Based on the measured hysteretic loops of moment vs. curvature and
shear vs. tip deflection relationships, a series of parameters related to ductility and flexural
strength are used to evaluate the seismic behavior of each column. The results showed that
concrete columns reinforced with GFRP bars have stable post-peak branches and can achieve
very high levels of deformability. Longitudinal GFRP bars maintained their stiffness at high
strains and transverse GFRP spirals provided increasing confinement for the entire duration of
the test without any spiral damage. The tests showed that, as an innovative material with
excellent corrosion resistance GFRP bars can be successfully used as internal reinforcement in
ductile concrete columns.
| Identifer | oai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/42951 |
| Date | 28 November 2013 |
| Creators | Tavassoli, Arjang |
| Contributors | Sheikh, Shamim A. |
| Source Sets | University of Toronto |
| Language | en_ca |
| Detected Language | English |
| Type | Thesis |
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