Symposium on Bridge Strengthening and Rehabilitation II

桥梁加固与修复研讨会II

• 批准号: 9422226
• 负责人: F. Klaiber
• 金额: $ 3.54万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-15 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422226&HistoricalAwards=false
• 关键词: Symposium; Bridge; Strengthening; Rehabilitation; II

9422226 Klaiber About one-half of the approximately 600,000 highway bridges in the United States were built before 1940 and many have not been adequately maintained. Deterioration caused by environmental factors has added to the problem. According to the FHWA, 40% of the nation's bridges are classified as deficient and in need of rehabilitation or replacement. In lieu of replacement in numerous instances strengthening has been determined to be a cost- effective alternative. Many researchers institutes, university, and consulting offices have developed various efficient bridge rehabilitation and strengthening procedures. To provide a forum for disseminating "tried and true" rehabilitation and strengthening procedures practicing bridge engineers, an NSF- sponsored symposium was held in Des Moines, Iowa in April 1993. There is need for a second bridge strengthening/rehabilitation symposium in that there are still major bridge problems and a considerable amount of design and research has been completed within the last two years. Therefore, a second symposium, open to all interested engineers, will be followed by a workshop of invited participants to formulate a manual on bridge strengthening and rehabilitation based on the presentations at both symposiums. The final manual will be prepared by the symposium steering committee and made available to designers in both public and private practice. ***

在美国大约60万座公路桥梁中，约有一半是在1940年之前建造的，许多桥梁没有得到充分的维护。 环境因素造成的恶化加剧了这一问题。 根据FHWA的数据，全国40%的桥梁被归类为缺陷桥梁，需要修复或更换。 在许多情况下，加固被确定为一种成本效益高的替代办法，而不是更换。许多研究机构、大学和咨询机构已经开发出各种有效的桥梁修复和加固程序。 为了提供一个论坛来传播“经过试验的真正的”修复和加固程序实践桥梁工程师，美国国家科学基金会主办的研讨会于1993年4月在爱荷华州得梅因举行。 有必要举行第二次桥梁加固/修复专题讨论会，因为仍然存在重大的桥梁问题，而且在过去两年内完成了大量的设计和研究。 因此，第二次研讨会向所有感兴趣的工程师开放，随后将举办一个由受邀参与者参加的研讨会，根据两次研讨会上的演讲制定桥梁加固和修复手册。 最后手册将由专题讨论会指导委员会编写，并提供给公共和私人实践中的设计师。 ***