Evaluation of Building Performance During the Loma Prieta Earthquake Based on Strong-Motion Records

基于强震记录的洛马普列塔地震期间建筑性能评估

• 批准号: 9003888
• 负责人: Sheng-Taur Mau
• 金额: $ 4.47万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1992-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9003888&HistoricalAwards=false
• 关键词: Evaluation; Building; Performance; During; Loma

This is a post Loma Prieta earthquake (Oct. 1989) investigation project in learning from this damaging event. The objectives of the research are to use these records to: (1) conduct a comprehensive building performance study for the time-varying nature of vibration periods and damping, and (2) estimate the maximum story drift, a crucial quantity for the assessment of possible building damage. A well established system identification method, improved in accuracy and efficiency in a related research program supported by the National Science Foundation, will be used for the parameter identification in this research. The identification of the vibration period and damping will be carried out for about 40 building records. The story drift estimation requires the development of a new method and will be carried out for selected buildings. The time-varying nature of the building period, damping, and story drift will be used to assess and calibrate the building damage state. The information obtained will form the basis for a building performance evaluation procedure. Based on the findings of this research, a procedure of post-earthquake building performance evaluation using strong motion records will be recommended for future applications.

这是1989年10月洛马普列塔地震后的一次地震。 调查项目在学习这一破坏性的 活动 研究的目的是利用这些记录 （1）进行全面的建筑表现 振动周期时变特性研究 和阻尼，以及（2）估计最大层间位移，a 评估可能的建筑物的关键数量 损害 一种行之有效的系统辨识方法， 在相关研究项目中的准确性和效率 由美国国家科学基金会资助， 用于本研究中的参数辨识。 振动周期和阻尼的识别 将为约四十个楼宇纪录进行。 的 层间位移估计需要开发一种新的 方法，并将对选定的建筑物进行。 建筑周期、阻尼、 和故事漂移将用于评估和校准 建筑物损坏状态。 获得的信息将 形成建筑性能评估的基础 procedure. 根据这项研究的结果，一个程序， 地震后建筑性能评估 强烈的运动记录将被推荐用于未来 应用.