유공합성보의 거동에 관한 실험적 연구 - 부휨모멘트 구간인 경우 ( Experimental Study on Structural Behavior of Perforated Composite Beam )

This paper presents the structural design data for preforated composite beams with circular web opening. From this study, we could find out the following conclusion; 1. Perforated composite beams with high moment - shear ratio were failed by stress concentration in the vicinity of bottom tee and high moment. 2. The initial stiffness was not concerned with the ratio of M/V. 3. The ultimate strength, fracture pattern was considerably concerned with the ratio of M/V. Especially fracture shape of NWC60 specimen was similar to steel beam.