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Torsional Strengthening Of Reinforced Concrete Beams Using Cfrp Composites, Ranj Rafeeq
Torsional Strengthening Of Reinforced Concrete Beams Using Cfrp Composites, Ranj Rafeeq
Dissertations and Theses
Few decades ago, there were no guidelines for torsion design of reinforced concrete (RC) beams. Hence, many existing beams in older buildings have a lack of adequate torsional strength since they were not properly designed for torsion. One way to regain/rehabilitate adequate torsional strength is through application of externally bonded carbon fiber reinforced polymers (CFRP). To date, American Concrete Institute (ACI) code, as well as other building codes, do not have recommendations or provisions for strengthening RC beams for torsion using fiber-reinforced polymer (FRP) composites due to the inexistence of conclusive experimental and analytical data. Of the very limited works …
Experimental Investigation Of Fiber Reinforced Concrete Beams, Karrar Ali Al-Lami
Experimental Investigation Of Fiber Reinforced Concrete Beams, Karrar Ali Al-Lami
Dissertations and Theses
Shear strength of fiber reinforced concrete beams was studied in this research project. Three types of fibers were examined: hooked-end steel fiber, crimped-steel fiber, and crimped-monofilament polypropylene fibers. The experimental program included five beam specimens. Two of the beams were control specimens in which one was reinforced with minimum shear reinforcement according to ACI 318, while the other one did not have any shear reinforcement. Each one of the other three specimens was reinforced with one of the above mentioned fibers by 1% volumetric ratio. In addition to the beam specimens, three prisms were also made for each type fiber …