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如果 1995 年阪神地震的时候,我们的这个单小球「棒棒糖」模型刚好就在神户。地震输入 的外力是上面的黑色曲线,单位是 g,根据牛顿惯性定律,外力等于质量乘以加速度,也就 是黑色曲线纵轴对应的 0.1g、0.2g...最大大约 0.5g,也就是相当于大约一半的重力横着作用 在了结构上面。在阪神地震作用下,小球的位移是红色曲线。横轴的时间是一一对应的,我 们可以看到地震的加速度变化和小球的位移变化之间的关系。
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owner: bian222 - (no access) - 地震力是怎么算出来的111.pdf, p21


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