FLEXTURAL STRENGTHENING OF RC CONTINOUS BEAMS USING CFRP SHEETS | ||
| International Journal of Advances in Structural and Geotechnical Engineering | ||
| Volume 03, Issue 03 - Serial Number 2042019, August 2019, Pages 54-68 PDF (1.98 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/asge.2019.270767 | ||
| Abstract | ||
| The survey of the literature showed the need for research on the behavior of strengthened continues reinforced concrete beams with different strengthening techniques. A wide research has been investigated on simply supported beams strengthened with CFRP composites; little work has been focused on continuous beams. Ductility is one of the issues that still need to be investigated further, as research has shown that the brittle behavior of FRP materials added to statically indeterminate Reinforced concrete beams can limit the ductility or decrease the plastic rotational deformation prior to failure. To meet this need, this study was utilized to predict the behavior of the strengthened continuous reinforced concrete beams under monotonic increasing load. This research aims to study the effect of strengthening schemes on the flexural behavior of a continuous RC beams under different parameters as changing the length of the CFRP sheets used and number of layers, Seven beams were constructed experimentally and studied to discuss experimentally two parameters which are the length and number of layers of CFRP sheets. Then a finite element models were developed to verify the experimental results by using (ANSYS). All specimens were investigated by using symmetrical strengthening configuration, and the same CFRP Area and length and width in both sagging and hogging regions. A comparison between the specimens‟ results from FEMs and values obtained and the experimental program was investigated. And it was concluded that both have the same trend and mode of failure. It was concluded that; the most effective parameters on the behavior of the strengthened reinforced continuous beams and the most effective parameters on the mode of failure of the strengthened beams can be easily deduced. | ||
| Keywords | ||
| CFRP sheets; Continuous R.C. beams; Strengthening; Beams Flexural behavior; FEMs; ANSYS | ||
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