Upgraded the Performance of the Fortifying R.C. beam by CFRP In Flexural
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 4
Abstract
The use of carbon fiber fortified polymer (CFRP) has been comprehensively utilized for the reinforcing of concrete structures. Some development organizations utilize CFRP in flexural fortifying of reinforced concrete beams, with bonded fully covering surface, without taken into account the concrete cover thickness and the low tensile strength of the concrete. Consequently, the point of this investigation is examine, through an exploratory program. Twelve reinforced concrete (RC) beams strengthened with different scheme bonded surface CFRP sheet and two un-strengthened beam (CB) were prepared and tested. The basic parameters of fortified concrete beam flexural fortified by CFRP are the concrete cover thickness, replacement the concrete cover by high strength material (epoxy adhesives material) and the contribution externally bonded U-jacket CFRP sheet around the flexural strengthening longitudinal strips. The results showed that the RC beams strengthened by CFRP strips with replacing the concrete cover by high strength material greater stiffness and load capacity than the fortified beams by CFRP strips at the concrete cover. The use of transverse UShaped CFRP sheet for the fortifying of RC beams increased their load carrying capacity and stiffness. The flexural strength of the tested beams was compared with strengths according to the practice ACI 440.2R-08 and fib analytical formulations.
Authors and Affiliations
Khaled Fawzy
Keywords
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- EP ID EP438397
- DOI 10.9790/1684-1504012638.
- Views 65
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