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Periodic structure used for three-way motion decoupling of shaking table model box
Periodic structure used for three-way motion decoupling of shaking table model box
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机译：用于振动台模型箱三向运动解耦的周期性结构
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摘要
The present invention provides a three-way motion decoupling periodic structure for use in a shaking table model box, wherein the periodic structure is formed by sequentially overlapping n periodic structure units, and the periodic structure unit includes a first side limit. A layer, a planar decoupling layer, a second side limit layer, and an elastic layer are sequentially overlapped, and is a positive integer satisfying n ≧ 2, and the first side limit layer, the elastic layer, the second side limit layer, and the planar decoupling The cross-sectional shapes of the layers are the same, and the periodic structure is used to realize three-way motion decoupling in seismic motion situations. The present invention also provides a three-way motion decoupling model box for use in shaking table testing, which is composed of a combination of a periodic structure, a model box substrate, and a portal frame for limit protection, said model box having a high strength. Made of lightweight material, suitable for supergravity and normal gravity shaking table tests, by multiple means, synchronization of model box and test soil motion, model box and test soil motion in three directions X, Y and Z There is no mutual interference in the model box, ensuring that the model box has no extra working force on the test soil, reducing the boundary effect as much as possible, better realizing three-way motion decoupling, Features can be restored. [Selection] Figure 1
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