Earthquake Response Characteristics of Bridges Under Multiple-Support Excitations

多重支撑激励下桥梁的地震响应特性

• 批准号: 8717252
• 负责人: Ahmed Abdel-Ghaffar
• 金额: $ 8.31万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1989-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8717252&HistoricalAwards=false
• 关键词: Earthquake; Response; Characteristics; Bridges; Under

This project deals with the problems of the effects of differential (phased) ground motion to the response of bridge structures. Multiple- support excitation is considered. Records from dense instrument arrays and synthetic ground motions are used. Emphasis is placed on the stochastic method of dynamic analysis. The results of this research is expected to have practical impact on the practice: to be incorporated in the seismic analysis computer programs such as SEISAB and the general guidelines for the seismic analysis and design of bridges. This is the second-year research of a 2-year continuing project originally initiated at the Princeton University.

本课题主要研究微分方程的影响问题， （阶段性）地震动对桥梁结构的响应。 多重- 考虑支承激励。 来自密集仪器阵列的记录 并使用合成地面运动。 重点放在 动力分析随机方法 这项研究的结果预计将产生实际影响， 做法：纳入地震分析计算机程序 如SEISAB和地震分析的一般准则， 桥梁设计。 这是一个为期2年的连续项目的第二年研究 最初是由普林斯顿大学发起的。