(1 沈阳建筑大学土木工程学院，沈阳 110168； 2 中国建筑东北设计研究院，沈阳 110006)

［摘要］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。

［关键词］门式刚架；转角节点；足尺试验；加劲肋；有限元分析

Experimental research and finite element analysis on stiffening rib in corner joints of gabled frames

Wang Yu¹, Liu Yongjun¹, Li Haobang²(1 School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China；2 China Northeast Architectural Design and Research Institute, Shenyang 110006, China)

Abstract:Static test and finite element analysis of the corner joints with and without the inclined stiffener of gabled frames were introduced The load displacement curves show that the component bearing capacity of corner joints with inclined stiffening rib is enhanced 40% more than that without inclined stiffening rib The results reveal that in the gabled frames, the corner joints with the inclined stiffening rib could improve the bearing capacity of the specimens In practical projects, when the extraterritorial flange is tensioned, the inclined stiffening rib could prevent the structural failure and improve the ductility of the structure effectually.

Keywords:gabled frame; corner joint; full-scale experiment; stiffening rib; finite element analysis

辽宁省教育厅科学技术研究项目(2008-Z-174)，住房与城乡建设部研究开发项目(2009-K2-12)。