Learning from the Mexican Earthquake of September 19, 1985: Space and Time Variation of Strong Earthquake Ground Motion

1985年9月19日墨西哥地震的教训：强震地震动的时空变化

• 批准号: 8611521
• 负责人: Erik Vanmarcke
• 金额: $ 20万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-07-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8611521&HistoricalAwards=false
• 关键词: Learning; Mexican; Earthquake; September; 19

This research program considers the spatial variation and correlation of strong earthquake ground motion. It is common in earthquake engineering to focus on the time history of ground acceleration at a given location. However, the spatial variation of ground motion is potentially just as important as the time variation, and is the focus of this study. This research program includes analytical modeling of ground motions, and statistical analysis of closely spaced accelerograms, principally from strong motion instrument arrays, and especially the accelerograms recorded during the September 19, 1985 earthquake. It also involves a study of patterns of building damage and variations in local geology, all to obtain insight into the spatial variation of strong ground motion.

该研究项目考虑了强地震地面运动的空间变化和相关性。 在地震工程中，通常关注给定位置的地面加速度的时间历史。 然而，地面运动的空间变化可能与时间变化一样重要，并且是本研究的重点。 该研究项目包括地面运动的分析建模以及紧密间隔的加速度图的统计分析，主要来自强运动仪器阵列，特别是 1985 年 9 月 19 日地震期间记录的加速度图。 它还涉及对建筑物损坏模式和当地地质变化的研究，所有这些都是为了深入了解强烈地面运动的空间变化。