水平旋转耦合振动下地基惯性及刚度的研究
- 摘 要
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王锡康 (冶金部建筑研究总院 北京 100088)谷耀武 (北京钢铁设计研究总院 100053)[提要] 改变过去动力机械基础在水平旋转振动作用下,不考虑土的惯性作用的作法,将待求参量由3个变为4个(称为动力分析中的四参数模型)。应用这个新模型进行分析,可获得更符合实际的计算结果。
[关键词] 水平、旋转耦合振动 参振土质量 动刚度
Unlike before, the authors have proved that the inertia effect of base soil must be considered and the in. ertia action of soils is very evident by a number of tests. And then, the number of the parameter to be deternuned shall change from 3 t0 4.Here, the model is refered to as 4 parameter model. Only using the new model, the results of dynamic computation could be conformable to practice well.
Keywords: couple vibration; sliding; rotation, participating soil mass in vibration; dynamic rigidity