结构的性能由非线性时程分析所得到的结构的层间位移角来衡量。

Structural behavior is evaluated from story drift ratios obtained through nonlinear time history analyses.

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另外，利用非弹性需求谱确定结构的目标位移是现在的发展趋势，因为它避免了繁琐的非线性时程分析。

On another hand, the seismic performance got from inelastic demand spectrum was increasingly popular because it avoids the complicated nonlinear time history analysis.

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由于技术原因，液体粘滞阻尼器在桥梁设计中的参数选取基本上是通过全桥模型的地震非线性时程分析得到的。

For technique hindrance, determining parameters for fluid viscous damper in bridge design is generally by nonlinear time history analysis of entire bridge model under earthquake.

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