基于双线性模型的钢管混凝土管节点疲劳寿命研究  

RESEARCH ON FATIGUE LIFE OF CFST TUBULAR JOINTS BASED ON BILINEAR MODEL

作　　者：张家元[1] 伍云 贺鹏[1] 

机构地区：[1]湖北省交通规划设计院,武汉430051 [2]仙桃市交通局,湖北仙桃433000

出　　处：《工业建筑》2010年第11期122-125,共4页Industrial Construction

摘　　要：通过模型试验比较钢管混凝土管节点和空心管节点的疲劳破坏行为,得出钢管混凝土管节点与空心管节点的疲劳破坏形态基本一致;提出用双线性模型预测钢管混凝土管节点疲劳寿命的方法,并用实例计算钢管混凝土管节点的疲劳寿命,将该寿命与试验结果进行比较,验证双线性模型在一定范围内预测钢管混凝土管节点疲劳寿命的合理性。Considering the characteristics of concrete-filled steel tube（CFST） tubular joints and comparing its endurance failure with hollow tubular joints,it is known that the fatigue failure mode of the two is basically the same.The method based on bilinear model of forecasting fatigue life of CFST tubular joints is brought forward in this paper.And the rationality of the method is validated in rational range by a real example.

关 键 词：钢管混凝土管节点 疲劳寿命 双线性模型 断裂力学 

分 类 号：TU398.9[建筑科学—结构工程]