门式刚架边柱端板横放节点滞回性能试验研究*
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石运东，陈以一（同济大学土木工程防灾国家重点实验室，上海 200092）［摘要］对6个门式刚架边柱节点试件进行了反复荷载试验。试验中试件出现3种破坏变形模式。以子构件为基础分析了试件的变形能力、延性及耗能能力。试验结果表明，节点域屈曲过程中形成的拉力场保证了节点域局部屈曲破坏的抗震能力。如侧重于门式刚架抵抗罕遇地震作用，则剪切屈曲模式优于构件的局部屈曲破坏模式，节点域剪切屈曲过程中的耗能能力可以加以利用。文中所采用的承载力计算方法可以有效地预测构件和节点局部屈曲的承载力和对应的破坏模式。［关键词］门式刚架； 节点； 局部屈曲； 滞回性能； 试验研究中图分类号：TU328文献标识码：A文章编号：1002848X(2012)11011405Experimental study on hysteretic behavior of connection of beam to side column in steel gabled framesShi Yundong, Chen Yiyi(State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)Abstract: Six specimens were tested under cyclic loading to study the hysteretic behavior of the connection of beam to side column in steel gabled frames. Three different failure modes were observed from the test. The deformation capacity, ductility and energy dissipation capacity were analyzed. The test results show that the tension field formed in the process of local buckling in panel zone ensures the earthquake resistance of panel zone after local buckling. The shear buckling is a favorable failure mode compared with the local buckling of slender members under rare earthquake. The energy dissipation in the process of shear buckling of the panel zone can be used. The calculation method adopted is able to predict the local buckling capacity of members and panel zone, and the corresponding failure modes.Keywords: steel gabled frame; connection; local buckling; hysteretic behavior; experimental study*科技部国家重点实验室基础研究资助项目(SLDRCE08-A-04)，国家自然科学基金项目资助项目(51038008)。作者简介：石运东，博士研究生，Email：shiyundong@gmail.com。参考文献［1］ CECS 102:2002 门式刚架轻型房屋钢结构技术规程［S］. 北京：中国计划出版社，2003.［2］ 徐珂,熊挺,孙惠敏.钢结构梁柱刚性节点抗震设计探讨［J］.建筑结构,2006,36(9):6668.［3］ CHEN Y Y, WU X X, TIAN H, et al. Experiment of non-compact H-shaped members and frames subjected to cyclic loads and the prediction of capacities ［J］. International Journal of Steel Structures, 2006 (6): 215226.［4］ NARAYANAN R. Plated structures, stability and strength ［M］. London：Elsevier Applied Science, 1983.
