횡좌굴을 고려한 H형강보의 회전능력에 관한 기초적 연구 ( A Basic Study on the Rotational Capacity of H-Shaped Steel Beams Considered on the Lateral Buckling )

This study aims at investigating the rotational capacity of H -shaped steel beams analytically, of which strength are dependent on the lateral buckling. Secant modulus concept is used to calculate the moment-curvature relations of H-shaped section by iteration method. And to access the inelastic lateral buckling strength, tangent modulus theory is used. Numerical analysis results are compared with test results on the loading condition of pure bending. Most probable rotational capacity curves are devided through statistical evaluation of test results.