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An Analytical Study on the Flexural Behavior of RC Beams Strengthened with High Tension Bars  

Shin, Kyung Jae (경북대학교 건축학부)
Kim, Byung Jun (경북대학교 건축학부)
Publication Information
Journal of Korean Society of Steel Construction / v.19, no.3, 2007 , pp. 259-270 More about this Journal
Abstract
This paper presents an analytical method of evaluating the flexural behavior of RC (reinforced concrete) beams strengthened with high-strengh bars. The former experimental results were used to compare with the analytical results. The experimental results also outline the advantages of externally strengtheng method with high-strenght bars. To evaluate the flexural behavior of RC beams strenghtend with unbonded high-strength bars, this paper proposes a method involving a simple strength-summation method. This method basically assumes that the total strength of RC beams strengthened with high-strength bars is equal to the sum of the strengths of the RC beams and the high-strength bars. This analytical method also includes the effects of compressive force due to the tension from high-strength bars. A comparison of the analytical and experimental results leads to the conclusion that the simple strength-summation mothod can simulate the flexural behavior of RC beams strengthened with high-strength bars with a good level of accuracy.
Keywords
External Post-Tension; High Tension Bar; Flexural Behavior; Simple Summating Estimation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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