ABSTRACT

Predictive models to estimate correlation coefficients between peak ground acceleration, peak ground velocity, and spectral acceleration residuals for Mexican intermediate-depth, intraslab earthquakes recorded on rock sites are presented in this study. The models were developed for the total, between-events, and within-event residuals using a recent ground-motion prediction equation (GMPE) and an updated ground-motion database. The results support the use of region- and mechanism-specific correlation models for the subduction intraslab zone of Mexico. An example of the application of the proposed correlation coefficient models consisting in evaluating a conditional mean spectrum (CMS), based on the Mexican seismic design normative, is presented.

摘要

本研究介绍了预测模型，以估计峰值地面加速度、峰值地面速度和墨西哥中等深度、记录在岩石站点上的板内地震的频谱加速度残差之间的相关系数。这些模型是使用最近的地面运动预测方程 (GMPE) 和更新的地面运动数据库针对总残差、事件间残差和事件内残差开发的。结果支持对墨西哥俯冲板内带使用特定区域和特定机制的相关模型。介绍了基于墨西哥抗震设计规范，所提出的相关系数模型在评估条件平均谱 (CMS) 中的应用示例。