上部结构柱顶加速度反应主要由基础转动引起的摆动分量组成，平动分量次之，而弹性变形分量很小。
The rocking is the main part of seismic acceleration at the top of super structure, the swing takes the second place, and elastic deformation is quite small.
上部结构柱顶加速度反应主要由基础转动引起的摆动分量组成，平动分量次之，而弹性变形分量很小。
The rocking is the main part of seismic acceleration at the top of super structure, the swing takes the second place, and elastic deformation is quite small.
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