【摘要】 基于适合结构分析的三参数模型,选取8个节点模型,利用大型有限元分析软件ANSYS 10.0对上下翼缘角钢半刚性连接节点进行分析,并与已有的试验数据进行校准,得到连接节点的弯矩-转角曲线。利用数值分析方法拟合连接节点的弯矩-转角曲线,得到每个节点弯矩-转角曲线的形状系数值。研究表明,利用数值拟合方法得到的拟合曲线和试验曲线与有限元曲线吻合较好,拟合得到的形状系数值相差较小。通过对比节点初始刚度、极限弯矩值以及各曲线拟合结果,建议顶底翼缘角钢半刚性节点的形状系数n取值为1.9。更多还原

【Abstract】 In this paper,eight top and seat angle connections were selected for parameters analysis with ANSYS 10.0,based on three-parameter power model which was fit for structural analysis.The results were testified with prevenient test data and others M-θ curves were got.The suggested value of shape coefficient(n) was got by numerical analysis method of these curves.The research indicated that numerical curves is fitted with test curves and FEA curves perfectly,and the shape coefficient(n) value of those numerical curves have small difference.By contrast of the initial stiffness and ultimate bending moment and those fitting curves,it was suggested that the value of the shape coefficient(n) of top and seat angle connections should be 1.9.更多还原