2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Behavior of Rectangular R.C. Columns Strengthened with CFRP laminates under Eccentric Loadings

Dr. Mohamed Elassaly, Fayoum University (Presenter)
Dr. Mahmoud El sayed, Fayoum University
Mrs. Wafaa Ismail

The scope of this research is to assess experimentally the behavior of reinforced concrete slender columns, strengthened with carbon fiber-reinforced polymer (CFRP) under the effects of eccentric loadings. A total of sixteen R.C. rectangular columns are casted and tested experimentally. Eight columns have dimensions of 100*150 *1750 mm; whereas, the other eight specimens have 100*150*2000 mm. Among the tested samples, four unwrapped columns are chosen as reference specimens, while the other twelve columns are wrapped by CFRP composites. The columns are tested under the effects of concentrated loads accompanied with small or big eccentricity. The investigated variables in this experimental program, include different wrapping schemes, thickness of the CFRP layer, column slenderness and eccentricity ratios. The experimental results show a significant enhancement on the performance of wrapped columns by CFRP sheets compared to that of unwrapped columns. It is found that partial and full CFRP jacket can significantly improve the ultimate load capacity by 31%–75%, respectively.