Serviceability and Structural Behavior of FRP-RC Beams under Different Weathering Conditions and Fatigue

Abstract:

This research encompasses structural behavior of FRP-RC beams under fatigue and different conditioning. Twelve beams were designed, casted, and after 28 days, subjected to pre-cracking. This pre-cracking was designed to simulate the expected flexure cracks in service and to enhance the effects of subsequent exposure. The beams were then exposed to one of the following four conditions: control (indoor lab environment), immersion in alkaline solution, cyclic immersion in alkali solution (Wet and Dry or W&D condition), and outdoor exposure (local Montreal climate) for 14 month .Two potentiometers installed after pre-cracking at the mid-span for flexural crack and at the shear span and after every 50-100 thousands cycles crack mouth opening displacement (CMOD) measured .Deflection of the mid-span recorded at the same time and degradation of crack, and deflection versus number of cycles and life-span prediction with considering service limit state (SLS) elaborated in this research.

• Periodical: Applied Mechanics and Materials (Volume 704)
• Pages: 447-450
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.704.447
• Online since: December 2014
• Authors: Arash Rahmatian*, Ashutosh Bagchi, Michelle Nokken
• Keywords: Crack, Deflection, Degradation, Fatigue, Freeze-Thaw, FRP Beam, FRP-RC, Life Cycle, Serviceability, Weathering, Wet-Dry

References

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