Control System for Highway Load Effects

9301387诺瓦克：卡车装载有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。被动控制将包括卡车载荷的短期和长期监测：特别是，极端卡车载荷，疲劳载荷谱，同时发生的卡车，旅行模式和具体地点的差异，以改善公路管理策略。现场测量将使用项目团队可用的数据采集系统进行。将为信号分析开发专门的计算机程序。开发的系统将执行两个功能：卡车载荷测量（轴载荷、间距、多重存在）和结构性能评估（诊断）。主动控制将包括对关键事件和不希望发生的事件的响应，例如卡车超载的发生。使用选定桥梁上的现有通信线路（由州DOT拥有），结果将与行动请求（进一步检查，车道关闭或桥梁关闭）一起转移到州DOT办公室。

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).