Control System for Highway Load Effects

公路荷载效应控制系统

• 批准号: 9301387
• 负责人: Andrzej Nowak
• 金额: $ 8.5万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-12-15 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301387&HistoricalAwards=false
• 关键词: Control; System; Highway; Load; Effects

9301387 Nowak There is a considerable degree of uncertainty involved in truck loads. The control systems developed in this study includes passive and active approaches. Passive control will include short- term and long-term monitoring of truck loads: in particular, extreme truck loads, fatigue load spectra, simultaneous occurrence of trucks, travel patterns and site specific difference in order to improve highway management strategies. Field measurement will be performed using the data acquisition systems available to the project team. Special computer procedures will be developed for the signal analysis. The developed system will perform two functions: measurement of truck loads (axle loads, spacing, multiple presence) and evaluation of the structural performance (diagnostics). Active control will include response to occurrence of critical and undesirable events, as for example occurrence of an overloaded truck. Using existing lines of communication on selected bridges (owned by State DOT), the results will be transferred to the State DOT office with the request for action (further inspection, lane closure or bridge closure).

9301387诺瓦克卡车装载涉及到相当程度的不确定性。本研究开发的控制系统包括被动和主动两种方法。被动控制将包括对卡车负载的短期和长期监测：特别是极端卡车负载、疲劳载荷谱、卡车同时发生的情况、旅行模式和特定地点的差异，以改进公路管理战略。将使用项目组可用的数据采集系统进行实地测量。将为信号分析开发特殊的计算机程序。开发的系统将执行两个功能：测量卡车负载(轴载、间距、多个存在)和评估结构性能(诊断)。主动控制将包括对关键和不良事件的发生做出响应，例如超载卡车的发生。利用选定桥梁(由国家交通部所有)的现有通信线路，结果将与采取行动(进一步检查、关闭车道或关闭桥梁)的请求一起移交给国家交通部办公室。