스티프너로 부분 보강된 H형강보의 비틀림 거동에 관한 연구 ( A Study on the Torsional Behavior of H-Shape Steel beams With Partially Reinforced Stiffeners )

Steel beams with open cross sections, such as H shape or C shape, have small rigidities, by which their torsional deformations for the given torsional moments are comparatively large. This paper deals with the torsional behavior of open section beams with stiffeners which make the beam partially closed section. Both St. Venant torsion and warping torsion are investigated, for the open section, however, warping torsion is neglected for the closed section for simplification of theoretical analysis. The effects of stiffeners could be understood in detail from this investigation.