Retrofitting of RCC Beams Weak in Shear with BFRP Wraps
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 4
Abstract
This paper present an experimental investigation on retrofitting RCC beam weak in shear using BFRP wraps. BFRP stands for basalt fiber reinforced polymer. Six number of RCC beams of size 100x100x750mm were prepared and the reinforcement design was so that they were weak in shear. Of the six beams two were control beams. Control beams were tested up to failure and other beams were preloaded up to70% of the failure load of control beams. Preloaded beams were then retrofitted by using BFRP. BFRP was wrapped in two pattern, one is wrapping in the shear zone in U manner and other pattern is the diagonal wrapping on two side faces at ± 45°. Retrofitted beams were then tested up to failure. All the beams were tested under two point static loading. Load deflection behavior, first crack load, ultimate load, failure mode and crack pattern were analysed. The results depicted that BFRP wraps improved the ultimate load carrying restored the stiffness of the member. BFRP wraps changed the brittle mode of failure to a ductile one.
Authors and Affiliations
Jasmin S. P. , Shinu Shajee
Keywords
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