对在门式刚架转角节点处设置斜向加劲肋和无斜向加劲肋的试件进行了试验和有限元分析,对比荷载-位移曲线,转角节点处设置斜向加劲肋的构件承载力比没有设置斜向加劲肋的构件承载力提高了约40%。研究结果表明,在转角节点处设置斜向加劲肋可以提高试件的承载力。实际工程中,当外翼缘受拉时,建议在转角节点处设置斜向加劲肋,防止结构失稳,并能有效改善结构的延性。 The test and finite element analysis of the specimens with diagonal stiffeners and no stiffeners were carried out at the corner joints of the portal frame. The load-displacement curves were compared with those of the stiffeners with diagonal stiffeners The bearing capacity of the members without diagonal stiffeners is increased by about 40%. The results show that the diagonal stiffeners at corners can improve the bearing capacity of specimens. In practical engineering, when the outer flange is stretched, it is suggested to set the diagonal stiffeners at the corner joints to prevent the structural instability and to effectively improve the ductility of the structure.