Analysis of Interstate 880 Failure in Oakland California Due to the October 17, 1989 Santa Cruz Mountains Earthquake

1989 年 10 月 17 日圣克鲁斯山地震导致加州奥克兰 880 号州际公路故障分析

• 批准号: 9002212
• 负责人: Jackson C.S. Yang
• 金额: $ 3.5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-12-01 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9002212&HistoricalAwards=false
• 关键词: Analysis; Interstate; 880; Failure; Oakland

This is a SGER project to collect and to study the perishable earthquake and structural response/damage data due to the October 17, 1989 Loma Prieta earthquake. Perishable site soil data by in-situ borehole/geophone experiments and dynamic property data of reinforced concrete members by laboratory tests of field samples will be collected, and evaluated. Soil damping, shear modules, and nonlinear soil stress-strain relationship will be determined. Using the basic data of soil and concrete, a dynamic analysis of the double deck bridge structures will be carried out. The California Department of Transportation will provide design blue prints and soil log charts of the bridge-sites to assist the study. The effort will lead to better understanding the effect of local soil to the structural response and improved understanding of failure causes of the bridge structures of the I-880 viaduct.

这是一个SGER项目，用于收集和研究由于1989年10月17日洛马·普埃塔（Loma Prieta）地震而引起的可腐烂的地震和结构反应/损害数据。 将收集并评估通过实地钻孔/地球可管实验和通过实验室样品实验室测试的钢筋混凝土构件的动态性能数据易腐的现场土壤数据。 将确定土壤阻尼，剪切模块和非线性土壤应力 - 应变关系。 使用土壤和混凝土的基本数据，将对双甲板桥结构进行动态分析。 加利福尼亚州交通运输部将为桥梁位置的设计蓝图和土壤日志图表，以协助研究。 这项工作将使更好地理解当地土壤对结构反应的影响，并改善对I-880高架桥桥梁结构的故障原因的理解。