抄録
H-shaped steel beams in moment frames are restricted in axial deformation by columns, other beams and floor slab. Although it is considered that deteriorating behavior of beam is affected by such axial deformation restriction, there are previous studies about deteriorating behavior of beams after occurring only lateral-torsional buckling. In this paper, cyclic loading test and finite element analysis (FEA) were carried out to reveal effect of axial deformation restriction on deteriorating behavior of beams when local buckling or fracture occurs. Based on FEA results, a method to verify criterion where axial deformation restriction should be considered is proposed.
