螺栓节点联结构件的等效优化分析

Direct Identification on Dynamic Load of Guyed Mast

对工程中广泛使用的螺栓节点联结进行了详细分析,建立了螺栓联结节点的精细有限元模型,以刚度矩阵的误差最小为等效原则,在把节点处杆件的半刚性联接等效为杆端截面抗弯刚度下降的基础上,通过优化等效方法,得到了螺栓节点联结杆件的精细有限元模型与简化有限元模型的等效关系。

This paper established a fine FEM of bolt connecting joint widely used in actual steel structures. Based on equaling the semi- rigid connecting as the reduction of member end section bending stiffness, an optimization equivalent method is put forward on the principal of minimizing the error term between stiffness matrix of fined model and one of equivalent simple model.