TMD can only reduce responses of few kinds of frequency and can’t realize the total absorption. The vertical stiffness of structure is big and its period of vibration is small.
结构的竖向刚度较大，自振周期较小，进行竖向隔震时需把隔震层的基频设计得很小才能减弱结构加速度。
参考来源 - 碟形弹簧对结构物的隔震作用·2,447,543篇论文数据，部分数据来源于NoteExpress
The ratio of its vertical stiffness to lateral stiffness is very important in structure design.
仅从结构来讲，弹性轮对垂向和轴向刚度的比率是最重要的。
Generator rotor is a flexible stuff with approximately equal horizontal and vertical stiffness.
发电机转子是一个水平刚度和垂直刚度基本相同的柔性体。
This article calculated the vertical stiffness matrix of plane frame structures subjected to vertical earthquake action.
计算了平面串并联多质点系结构在竖向地震作用下的竖向刚度矩阵。
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