【摘要】 通过分析转动分量与平动分量输入时的差别,并考虑场地转动的影响,提出了比较切合实际的扭转分量输入的动力模型,给出了此模型的计算方法.根据Newmark提出的转动分量公式由水平地震波时程值得到了转动分量的时程值.运用数学软件MATLAB语言自编有限元程序,通过算例对此模型与一般多支承输入模型进行时程分析,并对结果进行了分析和比较.更多还原

【Abstract】 The dynamic model is proposed by considering the diffience of rotational and horizontal component excition and the effect of ground rotation ,and the method of solving this dynamic model is given. According to Newmark’s formulation of rotation ,the rotational component is obtained by using the horizontal component. The dynamic model and the common multi-point model’s time history anlysis are studied with examples by making infinite element MATLAB program, and the result of the two models is compared and analysed.更多还原