CAREER: Integrating Structural Health Monitoring, Intelligent Transportation Systems and Model Updating into a Bridge Condition Assessment Framework

职业：将结构健康监测、智能交通系统和模型更新集成到桥梁状况评估框架中

• 批准号: 0644683
• 负责人: Erin Bell
• 金额: $ 40.93万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0644683&HistoricalAwards=false
• 关键词: CAREER; Integrating; Structural; Health; Monitoring

This Faculty Early Career Development (CAREER) award provides funding to develop a framework for bridge condition assessment that integrates information collected through structural health monitoring (SHM) and intelligent transportation systems (ITS) into a model updating program for bridge decision-making and management. Two of the major challenges that limit the successful use of model updating for condition assessment are the development of the a priori model that creates a well-conditioned parameter estimation scenario and the quality of the collected data. This research will address these challenges by advancing the analytical and experimental components of model updating. This framework includes the creation of a bridge finite element model with respect to parameter estimation for model updating requirements, which increases the available a priori information and will shift the traditional elemental bridge design paradigm. The research will also present a structural engineering application for vision-based displacement measurements and a structural condition assessment application for weigh-in-motion station (WIMS), which are both traditionally ITS measurements.If successful, the results of this research will provide bridge managers with a model updating platform for simultaneously post-processing collected SHM and ITS data. The model updating procedure will exploit SHM and ITS data for a selected bridge in New Hampshire providing information relating to the performance (SHM) and usage (ITS) of the bridge as a proof-of-concept. As this research advances bridge assessment technology, it will advance public understanding of bridge importance by providing a fun and educational activity using build-able bridge models that tell the story of engineering in relation to social studies, science and math. These build-able bridge kits will include drawings, construction sequences, social and economic impacts and education material. The kits will be integrated as hands-on educational enhancement activities into NH after-school programming.

该教师早期职业发展（职业）奖为桥梁状况评估提供了资金，该框架通过结构性健康监测（SHM）和智能运输系统（ITS）（ITS）收集的信息整合到一个模型更新计划中，以进行桥梁决策和管理。 限制模型更新进行条件评估的两个主要挑战是先验模型的开发，该模型创建了条件良好的参数估计方案和收集数据的质量。这项研究将通过推进模型更新的分析和实验组成部分来解决这些挑战。该框架包括创建一个关于模型更新要求参数估计的桥梁有限元模型，这增加了可用的先验信息，并将改变传统的元素桥设计范式。该研究还将提出针对基于视觉的位移测量值的结构工程应用，并为重量内电站（WIMS）进行结构性条件评估应用，这既是传统上的测量结果。 模型更新过程将为新罕布什尔州选定的桥梁利用SHM及其数据，以提供与性能（SHM）和桥梁的用法相关的信息作为概念证明。 随着这项研究的推动桥梁评估技术，它将通过使用可建造的桥梁模型提供有趣和教育活动来提高公众对桥梁重要性的理解，这些模型讲述了与社会研究，科学和数学有关的工程故事。这些可建造的桥梁套件将包括图纸，施工序列，社会和经济影响以及教育材料。这些套件将被作为动手教育增强活动集成到NH课后编程中。