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本文在等效平面框架子结构法的基础上,引入广义坐标,将高层简体结构中的位移分量变换成广义位移分量,建立了结构的广义位移法方程,使结构的自由度数不随层数提高而增加,大大降低了体系的自由度,从而能用IBM—PC等微机计算复杂的高层结构。算例分析表明,本文的方法可以满足工程设计的精度要求。
In this paper, based on the equivalent plane frame substructure method, the generalized coordinates are introduced to transform the displacement component in the high-level simplified structure into the generalized displacement component. The generalized displacement equation of the structure is established so that the degree of freedom of the structure does not increase with the number of layers. The increase greatly reduces the degree of freedom of the system, so that it can use IBM-PC and other microcomputers to calculate complex high-level structures. The example analysis shows that the method of this paper can meet the accuracy requirements of engineering design.