在岩土地震工程中，基于性能的抗震设计的一个重要方面就是分析估算土壤液化的概率。
One important aspect of performance-based design in the context of geotechnical earthquake engineering is estimating of the probability of liquefaction.
对于高速公路大桥的抗震设防， 应给出80 年代设计基准期63 ％ 、10 ％ 和2 ％ 三个超越概率水准的设计地震动参数；
To the aseismic fortification of bridge of high way, three designing ground motion parameters with surpassing probabilities of 63%, 10% and 2% for 80 years should be given.
指出了由于结构地震响应从地面运动到结构性能两方面固有的随机性和不确定性，使基于性能的抗震设计应当在概率的基础上形成；
Performance-based anti-seismic design should be established on the basis of probability because the ground motion and the structural performance are random and uncertain.
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