1)西安建筑科技大学土木工程学院，710055； 2)中国建筑西北设计研究院， 西安,710003

； 3)苏州科技学院土木工程系，215011。

［提要］我国现行钢结构设计规范与规程对梁柱节点域的抗剪能力提出了具体的要求，并指出当节点域抗剪能力不足时可设置斜向加劲肋。但是却没有给出所设置的斜加劲肋的计算办法。采用有限单元法对考虑了斜肋板宽厚比、腹板宽厚比、节点域高宽比、柱翼缘宽厚比等多种影响因素的节点域模型进行了屈曲后强度计算，分析了各种不同情况下的节点域的变形及应力分布，提出了有斜加劲肋的节点域的等效计算模型及计算公式，并推导了门式刚架节点域斜加劲肋的设计计算公式。

［关键词］节点域；斜加劲肋；屈曲后强度；有限单元法

Performance and Design of Inclined Stiffener in Panel Zone/Liu Gaobo1，Xu Rong2，Gu Qiang3(1 Dept. of Civil Engineering, Xi"an University of Architecture & Technology,Xi"an 710055,China; 2 China Northwest Building Design and Research Institute,Xi"an 710003,China; 3 Dept. of Civil Engineering, USTS, Suzhou 215011,China)

Abstract:The codes and specifications of China in steel structure field require that the bearing ability of shear force in panel zone must be sufficient and the inclined stiffener should be applied. But all of the criterions have no formula on how to design the inclined stiffener and the panel zone with inclined stiffener.The post buckling behaviors of panel zone with inclined stiffener models,which concern different geometric factors, are analyzed by finite element analysis. An equal model of penal zone with inclined stiffener is found, with which design formula of panel zone with inclined stiffener and the inclined stiffener in gabled frames established.

Keywords:panel zone; inclined stiffener; post buckling strength; finite element analysis method