Monitoring of Traffic Axle Loads for Fatigue Environment in Orthotropic Steel Deck Structures

正交异性钢桥面板结构疲劳环境中交通轴荷载监测

• 批准号: 23760420
• 负责人: SUZUKI Keigo
• 金额: $ 1.41万
• 依托单位: University of Fukui
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760420/
• 关键词: 鋼床版; 軸重; 疲労; Weigh-In-Motion; 疲労損傷; Bridge Weigh-In-Motion; モニタリング; ひずみ

A calculation method of axle loads was developed. The method uses strain responses of orthotropic steel deck structures when heavy vehicles pass. The method was applied to a vehicles running test with three heavy trucks, the axle weights of which are 207.6kN, 310.1kN and 411.3kN. In total 85 axle passages, the average error was -2.1% and the standard deviation of the errors was 6.7%. For one-week continuous monitoring data in an actual orthotropic steel deck structure, the result showed axle loads over 100kN passed 1,793 times and those over 200kN did 31 times.

提出了一种轴重计算方法。该方法利用重型车辆通过时正交异性钢桥面板结构的应变响应。应用该方法对轴重分别为207.6kN、310.1kN和411.3kN的三辆重型汽车进行了实车行驶试验。在85个轴通道中，平均误差为-2.1%，误差的标准差为6.7%。对一个实际正交异性钢桥面结构进行了为期一周的连续监测，结果表明，轴载超过100 kN的通过了1,793次，超过200 kN的通过了31次。