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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 102 - 112 (11page)
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초록· 키워드
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Recently, the near surface mounted (NSM) FRP strengthening technique has been actively applied to deteriorated concrete structures for rehabilitation purposes. However, the use of this conventional NSM technique could be restricted due to the insufficient height or strength of the concrete cover. In this study, the stirrup-Cutting Near Surface Mounted(CNSM) technique was considered as an alternative, whereby NSM strips are placed at a deeper level, namely at the level of the main steel reinforcement. A flexural test of a concrete beam strengthened with CNSM technique was performed and the results were then compared to those for a concrete beam strengthened by the conventional NSM technique. The embedment length of the CFRP strips was varied in order to increase the effect of the anchoring depth of the NSM and CNSM CFRP strips in the beam specimens. From the results of the test, the beam with the CNSM CFRP strip showed typical structural behavior similar to that of the beam with the NSM CFRP strip. Moreover, there was no apparent structural degradation resulting from the stirrup partial-cutting. Consequently, the CNSM strengthening technique can be suitably utilized for extensively damaged concrete structures where it is difficult to apply the conventional NSM technique.
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참고문헌 (18)
참고문헌 신청
/ 2002 / ACI committee 440. 2R., Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures / American Concrete Institute
American Concrete Institute / 2008 / Building code and commentary, ACI 318-08, Detroit, 155
Barros JAO / 2006 / Assessing the effectiveness of embedding CFRP laminates in the near surface for structural strengthening / Constr Build Mater 20 : 478 ~ 491
Barros JAO / 2007 / Efficacy of CFRPbased techniques for the flexural and shear strengthening of concrete beams / J Cem Concr Compos 29 : 203 ~ 217
Bonaldo E / 2008 / Efficient strengthening technique to increase the flexural resistance of existing RC slabs / J Compos Constr 12 (2) : 149 ~ 159
American Concrete Institute / 2008 / Building code and commentary, ACI 318-08, Detroit, 155
Barros JAO / 2006 / Assessing the effectiveness of embedding CFRP laminates in the near surface for structural strengthening / Constr Build Mater 20 : 478 ~ 491
Barros JAO / 2007 / Efficacy of CFRPbased techniques for the flexural and shear strengthening of concrete beams / J Cem Concr Compos 29 : 203 ~ 217
Bonaldo E / 2008 / Efficient strengthening technique to increase the flexural resistance of existing RC slabs / J Compos Constr 12 (2) : 149 ~ 159
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