【摘要】 本文在文献［１］的基础上，运用Ｌａｇｒａｎｇｅ方程推导网架的运动微分方程，应用加权残值法的配点法以三次Ｂ样条函数为时域函数的试函数，求解了正交正放类网架的动力响应问题。文章具体分析了网架的竖向地震响应，结果满意。更多还原

【Abstract】 Abstract Based on paper , the space truss is assumed as the sandwich plate. In this paper, the equations of the motion of the space truss are obtained by the Largrange equation, and the collocation method in MWR is suggested to analyse the dynamic response of the space truss by useing the B spline funcation of the third order as the trial funcation in the time domain. The dynamic characteristics of the space truss under vertical earthquake are studied, and the results are satisfied.更多还原