Analytical tool to predict structural and serviceability-related repairs of multi-girder concrete bridges in Nova Scotia

用于预测新斯科舍省多梁混凝土桥梁结构和适用性相关维修的分析工具

• 批准号: 551386-2020
• 负责人: Oudah, Fadi
• 金额: $ 1.82万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722629
• 关键词: Analytical; tool; predict; structural; serviceability

Canada's infrastructure deficit has been growing by about $2 billion a year over the past two decades as projected by a study commissioned by the Federation of Canadian Municipalities in 2001. Infrastructure including the bridge inventory in Canada continues to deteriorate over time with 80 per cent of Canada's infrastructure is past its service life. In Nova Scotia, the estimated budget for bringing all bridges to sustainable condition is $210 million per year needed over 10 years, while the actual allocated annual budget to maintain, repair, and replace bridges is $45 million as reported by Nova Scotia Department of Transportation and Infrastructure Renewal in 2019. The challenge of having limited resources to repair and maintain bridges in Canada paired with a large infrastructure deficit initiate the need to develop robust tools to risk rank existing bridge inventory to prioritize bridge repairs. The objective of the present research is to develop an analytical user-friendly tool to predict the structural and serviceability-related repairs of existing multi-girder concrete bridges in Nova Scotia. The tool will be utilized to risk rank existing bridges in Nova Scotia. The following will be considered in developing the tool: (1) it will be designed to augment the current bridge inspection practice in Nova Scotia in updating existing bridge reliability; and (2) it will utilize deterioration models specific to Nova Scotia's weather conditions. The tool will be developed in four phases as follows: document review and field inspection of select bridges in Nova Scotia (Phase I), algorithm development (Phase II), software programming (Phase III), and risk ranking of select bridges in Nova Scotia (Phase IV). Four Highly Qualified Personal (HQPs) will be trained as part of this project in the specialized area of bridge evaluation and repair. The tool will be used by the partner organizations to evaluate and repair existing multi-girder concrete bridges in Nova Scotia.

加拿大基础设施赤字在过去20年中每年增长约20亿加元，这是加拿大联邦政府在2001年委托进行的一项研究所预测的。加拿大的基础设施，包括桥梁库存，随着时间的推移继续恶化，加拿大80%的基础设施已经超过使用寿命。在新斯科舍省，使所有桥梁达到可持续状态的估计预算为10年内每年2.1亿美元，而新斯科舍省交通和基础设施更新部在2019年报告的维护，维修和更换桥梁的实际分配年度预算为4500万美元。在加拿大，由于维修和维护桥梁的资源有限，加上基础设施严重不足，因此需要开发强大的工具来对现有桥梁库存进行风险排名，以优先考虑桥梁维修。本研究的目的是开发一个分析用户友好的工具，以预测现有的多梁混凝土桥梁在新斯科舍省的结构和服务相关的维修。该工具将用于对新斯科舍省现有桥梁进行风险评级。在开发该工具时，将考虑以下内容：（1）其设计旨在增强新斯科舍省当前的桥梁检查实践，以更新现有桥梁的可靠性;（2）其将利用特定于新斯科舍省天气条件的退化模型。该工具将分四个阶段开发：新斯科舍省选定桥梁的文件审查和现场检查（第一阶段）、算法开发（第二阶段）、软件编程（第三阶段）和新斯科舍省选定桥梁的风险评级（第四阶段）。作为本项目的一部分，将对四名高素质人员（HQP）进行桥梁评估和维修专业领域的培训。伙伴组织将使用该工具评估和修复新斯科舍省现有的多梁混凝土桥梁。