단조하중을 받는 합성보의 전단강도 평가

다국어 초록 (Multilingual Abstract)

There is much research relating to shear strength of reinforced concrete beams and composite beams. However, some current shear design provisions and formulations are still too complex to be easily understood by engineers, with a different equation for each particular situation. With the aim of solving these problems, the current paper presents the extension of shear design procedure to composite beams. For composite beams with web reinforcement and without the one, the shear design procedure is based on the provisions and formulations, taking into account the result of an cumulative shear strength method that is previously developed. For strength evaluation, structural parameters such as compressive strength, H-steel size effects, tensile steel ratio, and shear span depth ratio are involved. Vcb,exp/Vcb,cal showed tendency of overestimation according to increase of steel ratio and H-steel size effects in the BS8110 provision. On the other hand, Vcb,exp/Vcb,cal is superior in conformability with an experiment result JSCE provision among other equations. The proposal equation know that expect Vcb,pro rationally about shearing strength. Therefore, equation is considered to be utilized usefully evaluating shear strength by change of the shear span depth ratio of composite beam, tensile steel ratio, H-steel size effects and compressive strength of the concrete in this research.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 합성보 실험체 개요
• 3. 합성보에 대한 설계 조항과 분석
• 4. 현재의 전단강도 설계에 따른 실험값과의 비교 평가
• 5. 전단강도 평가식의 제안
• 6. 결론
• 참고문헌

참고문헌 (Reference)

1 대한건축학회, "건설교통부 고시 건축구조설계기준" 사단 법인대한건축학회 2005

2 谷村 幸裕, "鐵骨鐵筋コンクリ-ト部材の耐力" 18 (18): 1331-1336, 1336

3 石井,修, "端部造中央RC造梁に関する実験的研究" 983-984, 1995

4 石川裕次, "端部S造中央RC造梁に關する實驗的硏究" 19 (19): 1389-1394, 1997

5 吉田啓喜, "端部SRC・中央部RCとする合成構造梁の実験的研究(その2)" 1439-1440, 1988

6 吉田啓喜, "端部SRC・中央部RCとする合成構造梁の実験的研究(その 3)" 1441-1442, 1988

7 渡辺 忠朋, "せん斷補强鐵筋を用いない鐵骨鐵筋コンクリ-ト梁の耐力について" 16 (16): 1193-1198, 1994

8 JSCE, "Standard Specification for Design and Constructio n of Concrete Structures, Part Ⅰ(Design)" Japan Society of Civil Engineers 1991

9 이승조, "H형강의 크기효과 및 전단보강방법에 따른 합성보 거동 평가" 대한건축학회 23 (23): 75-82, 2007

10 ACI Committee 318-05,Building Code Requirements for Reinforced Concrete and Commentary(ACT 318-05/ACI 31 8R-05), "Building Code Requirements for Reinforced Concrete and Commentary(ACT 318-05/ACI 31 8R-05)" American Concrete Institute 2005

11 "British Standards Institution BS8110: Part 1Structural U se of Concrete, Code of Practice for Design and Construct ion, BSI, London"

12 한국콘크리트학회, "2007년도 개정 콘크리트구조설계기준 해 설" 한국콘크리트학회 2008