H형강의 크기효과 및 전단보강방법에 따른 합성보 거동 평가 = Evaluation of Behavior on H-steel Size Effects and Shear Reinforcing Method of Composite Beams

다국어 초록 (Multilingual Abstract)

The performance of composite beams comprising end-reinforced concrete (RC) connecting to center-steel concrete (SC) under monotonic loads is described in this paper. The experiment took four kinds H-steel size effects as a bending specimen, three kinds of steel ratio and shear reinforcing methods as the main parameter. The main shear reinforcing methods are as follows: horizontal reinforcing (type-web), with stirrups and without stirrups. It showed difference in structural performance ductility, energy dissipation capacity and shear according to the attaching method of reinforcing. The behavior modes of overall specimens, namely, bending failure in beam, bending-shear failure in beam and shear failure in beam were observed. Test results showed that the composite beam constructed with a reinforcing method exhibited excellent strength, deformation capacity in comparison with the regular RC beam. It is noted that the most effective methods were horizontal reinforcing one and H-steel size effects 0.8% percent.

참고문헌 (Reference)

1 임병호, "철골철근비에 따른 혼합구조보의 내력 및 변형 특성에 관한 연구" 한국강구조학회 14 (14): 87-94, 2002

2 김상헌, "이질구조부 보주근 정착방법에 따른 혼합구조보의 구조적 특성에 관한 연구" 12 (12): 87-94, 2000

3 石井,修, "端部造中央RC造梁に関する実験的研究: その1.実験概要" 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3)" 1441-1442, 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2)" 1439-1440, 1988

7 Leon, R. T., "Shortcomings and recent improveme nts in composite construction codes" ASCE 373-377, 1997

8 Bracci, J. M., "Seismic design and constructability of RCS special moment frames" 125 (125): 385-392, 1999

9 Ayoub, A., "Mixed formulation of nonlinear steel-concrete composite beam element" 126 (126): 371-381, 2000

10 Nie, J. G., "Longitudinal shear strength of steel-concrete composite beam" 18 (18): 13-19, 1997

11 Slutter, R. G., "Flexural strength of steel concrete composite beams" ASCE 91 (91): 71-99, 1965

12 Benitez, M., "Deflections of composite beams with web openings" 124 (124): 1139-1147, 1998

13 Viest, I. M., "Composite construction design for buildings" ASCE McGraw-Hill 1997

14 Xiao, Y., "Composite and hybrid structures" 1 and 2 : 22-34, 2000