Performance-based procedures represent an improvement over current state-of-practice procedures that treat the assessment of seismic demand and engineering response parameters independently. Procedures used in current practice generally provide estimates of liquefaction-induced ground settlement that are inconsistent with the desired ground settlement hazard level. A recently developed probabilistic procedure to estimate liquefaction-induced ground settlement is employed to develop a new performance-based procedure that estimates ground settlement which accounts for key sources of uncertainty. The ground-motion intensity and ground settlement estimations are integrated in the proposed procedure to produce hazard curves for liquefaction-induced ground settlement. The hazard curve for ground settlement links different hazard levels with their corresponding values of ground settlement by evaluating a wide range of ground-motion intensities and site characterization parameters with their associated uncertainties. The proposed performance-based procedure also permits the evaluation of different sources of uncertainty and their effects on the ground settlement estimate.

中文翻译：

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基于性能的概率液化引起的地面沉降程序

基于性能的程序代表了对当前独立处理地震需求和工程响应参数评估的实践状态程序的改进。当前实践中使用的程序通常提供与所需的地面沉降危险水平不一致的液化引起的地面沉降的估计。最近开发的概率程序用于估计液化引起的地面沉降，用于开发一种新的基于性能的程序，该程序可估计地面沉降，从而解释了不确定性的关键来源。地面运动强度和地面沉降估计被集成到所提出的程序中，以生成液化引起的地面沉降的危险曲线。地面沉降风险曲线通过评估各种地面运动强度和场地特征参数及其相关的不确定性，将不同的风险级别与其相应的地面沉降值联系起来。拟议的基于绩效的程序还允许评估不同的不确定性来源及其对地面沉降估算的影响。