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Title |
Flexural Capacity of Reinforced Concrete Beams Strengthened by Bow System
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Keywords |
Bow 공법 ; 외부 포스트텐션 ; 보강 Bow system ; External post-tension ; Strengthen |
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Abstract |
This paper is to investigate about a new technique (Bow system) which is to develop the disadvantages of the external post-tensioned method. The purpose of this paper is to analyze about the prestress loss when the loads apply along the long term and to improve the capacity of the members strengthened by Bow system. The variables in the test program are the span/depth ratio, the amount of tendon area. And the test was carried out to confirm the long term behaviour. It is shown that can apply the current code in the design, and have no the structural problems about the prestress loss.
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