Abstract
Objectives: To examine the effect of Glass Fiber Reinforced Plastic (GFRP) laminated on strength and deformation capacity of pre-stressed concrete beams under static loading condition. Methods/Statistical Analysis: In this study, 7 Pre-Stressed Concrete (PSC) beams were cast and laminated with GFRP. The beams were tested under monotonically increasing loading and manual readings were recorded. Sufficient data was obtained on the strength, deformation and failure characteristics of pre-stressed beams with and without GFRP laminates for beams tested under static loading. Findings: In all the pre-stressed concrete beams, 5mm UDCGFRP strengthened PSC beams showed an improved flexural strength. The test results inferred that strengthened pre-stressed concrete beams showed 93.15% increase in load carrying capacity than that of control specimens. All GFRP laminated pre-stressed concrete beams experience flexural failure. Application/Improvements: The pre-stressed concrete beams laminated with glass fibre reinforced polymer were found to be very effective in load carrying capacity, deflection and ductility. It can be also be suitably adopted for rehabilitation and restoration of corrosion damaged, old infrastructures and seismic affected concrete structures.
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