Learning from the Champlain Bridge - Toward improved condition assessment diagnostics and prognostics supporting more effective bridge maintenance and rehabilitation

向尚普兰大桥学习 - 改进状况评估诊断和预测，支持更有效的桥梁维护和修复

• 批准号: 566567-2021
• 负责人: MorettiSanchez, LeandroFrancisco
• 金额: $ 7.65万
• 依托单位: University of Ottawa
• 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=722925
• 关键词: Learning; Champlain; Bridge; Toward; improved

The objective of this research is to develop a quantitative and comprehensive bridge condition assessment framework to support Jacques Cartier Champlain Bridge Inc. (JCCBI) and other infrastructure owners in decision-making and optimization of the maintenance, rehabilitation, and replacement of their bridge stock. To this end, we will receive numerous structural members (i.e., girders, in-fill slabs, diaphragms, etc.) from the deconstructed Champlain bridge and will i) apply advanced experimental (i.e., visual, chemical, microscopic and mechanical) techniques to assess the actual condition (i.e., material deterioration degree) of these members subjected to real field exposure conditions over nearly 60 years; ii) investigate the structural implications of material degradation present in different parts of the bridge and the effectiveness of attempted historical rehabilitation strategies; and iii) develop numerical models capable of predicting the future performance of existing structures experiencing similar deterioration. Ultimately, we aim to synthesize this knowledge to develop better informed bridge condition assessment frameworks and management protocols.

这项研究的目的是开发一个定量和全面的桥梁状况评估框架，以支持Jacques Cartier Champlain Bridge Inc.（JCCBI）和其他基础设施所有者在决策和优化维护，康复和更换其桥梁库存方面。为此，我们将从解构后的尚普兰桥（Champlain Bridge）中接收许多结构性成员（即梁，填充板，隔膜等），并且i）将应用高级实验（即视觉，化学，微观，微观和机械）技术评估这些成员在近60年内经历现场暴露条件的实际状况（即材料恶化程度）； ii）研究桥梁不同部分中存在的物质降解的结构含义以及未遂历史康复策略的有效性； iii）开发能够预测出现类似恶化的现有结构的未来性能的数值模型。最终，我们旨在综合这些知识，以开发出更好的知情桥梁状况评估框架和管理协议。