BEHAVIOR OF HIGH-STRENGTH FIBER CONCRETE COLUMNS REINFORCED WITH GLASS FIBER-REINFORCED POLYMER BARS AND STRENGTHENED BY CARBON FIBER-REINFORCED POLYMER WRAP | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 20, Issue 3, June 2016, Pages 194-206 | ||
| Authors | ||
| Raid Mohammed Al Shadidi; Hassan Falah Hassan; Mohammed Husein Al-Dahlaki | ||
| Abstract | ||
| The solution of using glass fiber reinforced polymer (GFRP) bars, as reinforcement in concrete structures to overcome the problems created by steel reinforcement, is now widely accepted because of both its low cost and good results shown by large investigation efforts. In this paper twelve tests had been conducted on reinforced concrete column specimens of (120 x 120 x 1000 mm effective dimensions) equally enlarged from both ends for the purpose of applying eccentric load, three specimens were made of high strength concrete , reinforced with traditional deformed steel bars and stirrups to be considered as references, while the remaining nine specimens were of high strength concrete with 0, 0.5, 1.0% steel fiber, reinforced longitudinally with GFRP bars and wrapped with carbon fiber reinforced polymer (CFRP) textile replacing the steel stirrups .In addition to the similarity in behavior under load and in the failure patterns of the specimens reinforced with GFRP bars and the specimens reinforced with traditional steel, the results show that Steel reinforced columns has 13% higher ultimate load than corresponding GFRP reinforced columns, also an approximate linear increase in the first crack and failure load with the presence of steel fiber in concrete in range from 20% to 42% for 1% fiber content and in range of 21% to 26 % for the first crack and ultimate load respectively . The ductility of the specimen reinforced with GFRP bars is 90% higher than that of steel reinforced specimens of =2.18% and 10% more for those of =5.58%. | ||
| Keywords | ||
| columns; GFRP Reinforcement; High Strength Concrete; Fiber Reinforced Concrete CFRP Wrapping Strengthener | ||
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