Experimental Procedures for Assessing the Resistance of Highway Bridges

评估公路桥梁阻力的实验程序

• 批准号: 8513785
• 负责人: Mihran Agbabian
• 金额: $ 23.31万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8513785&HistoricalAwards=false
• 关键词: Experimental; Procedures; Assessing; Resistance; Highway

Highway bridges in the United States are experiencing the problems of aging, corrosion, and excessive cracking of concrete. It is important to evaluate these deficiencies in terms of the remaining strength of the bridge structure. The problem of determining the current capacity and remaining life of the bridge is very complex because of the many and varied factors involved. This project will investigate the development of a computer program which will take into account the various defects and aging parameters of the material estimate its strength and rate of decay. The study will concentrate on the behavior of a scale model bridge with various intentional defects added to it to develop an appropriate methodology for future full-scale use by bridge engineers.

美国的公路桥梁正面临着 混凝土的老化、腐蚀和过度开裂。 重要的是 评估这些不足之处的剩余实力， 桥的结构。 确定当前容量的问题 桥梁的剩余寿命非常复杂， 涉及到各种因素。 该项目将调查 开发一个计算机程序，将考虑到 材料的各种缺陷和老化参数估计其 强度和衰减率。 这项研究将集中在行为 一个有各种故意缺陷的比例模型桥， 为未来桥梁的全面使用制定适当的方法 工程师