Studies of Strong Earthquake Ground Motions

该项目将对地震地面运动进行综合研究。将进行地震地面运动的随机模拟，并将用现场数据验证结果。将开发新技术来处理和分析现有的地面运动数据，并为验证提供输入参数。随机建模研究将为设计人员提供一种现实的、经过验证的抗震设计方法。将利用地面运动的时间历史来评估地震风险。作为这项工作的一部分，将开发处理强运动数据的新技术。现有处理算法的精度和数值效率将根据地面运动仪器的具体工作特点进行评估。将使用由8个数字加速度计组成的密集阵列对仪器性能进行比较评估。

This project will perform integrated studies on earthquake ground motions. Stochastic modeling of earthquake ground motions will be performed and the results will be verified with field data. New techniques will be developed to process and analyze available ground motion data and provide input parameters for the verification. The stochastic modeling studies will provide the designer with a realistic and verified method for a seismic design. The seismic risk will be assessed using time histories of ground motion. As part of this work, new techniques to process strong motion data will be developed. The accuracy and numerical efficiency of existing processing algorithms will be evaluated based on site specific operating characteristics of ground motion instruments. A comparative evaluation of instrument performance will be made using a dense array of eight digital accelerographs.