【摘要】 本文利用拟夹层板法研究了正交正放类网架结构的动力问题.以两个双重级数为试函数,导出了四边简支边界条件下网架结构固有频率的精确解.在考虑阻尼力的情况下,求得了网架结构竖向地震响应解,并且计算公式中的系数可从《建筑抗震设计规范(GBJ11—89)》规定的设计反应谱求得.算例表明,本方法计算简便并具有一定的精度.更多还原

【Abstract】 In this paper, the dynamic problems of orthogonal and ortholaid network structure are studied. In the case of network structures simply supported on four edges, the precise solution of natural frequency of the structure is derived by two double trigonometric series as trial functions. When damping force is considered, solutions of the vertical seismic response of network structures are given and the coefficient in the calculation formulas can be obtained by using the design response spectrum of the standard GBJ11-89. Numerical examples show that this method is simple and accurate.更多还原