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，收集和研究 易逝的地震和结构 响应/损坏数据， 1989年10月17日洛马普列塔地震。 现场易腐场地土壤数据 井眼/检波器实验和动态 钢筋混凝土构件性能数据 通过现场样品的实验室测试， 收集并评估。 土壤阻尼，剪切 模量和非线性土应力-应变 关系将被确定。 使用 土壤和混凝土的基本数据，动态 双层桥结构分析 将被执行。 加州交通部 将提供设计蓝图和土壤日志 桥址图，以协助 study. 这一努力将导致更好的理解 局部土对结构的影响 响应和改进对故障的理解 I-880公路桥梁结构的成因 高架桥。