基于桥梁结构的动态称重系统算法研究  

Algorithm Analysis of Bridge Weigh-in-Motion System Based on Bridge Response

作　　者：耿少波[1] 石雪飞[1] 阮欣[1] 

机构地区：[1]同济大学桥梁工程系,上海200092

出　　处：《石家庄铁道大学学报（自然科学版）》2011年第4期40-44,共5页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)(2007AA11Z103)

摘　　要：基于桥梁结构影响线加载的动态称重系统(B-WIM)便携且可循环使用,近几年在国外引起了学者深刻关注,并开发了相应的商业设备,而我国对此进行相关研究见于文献的很少。该系统可为中小跨径桥梁开展汽车荷载调查提供新的思路,并为中小跨径桥梁汽车活载评估提供直接参数。详细介绍了该系统算法原理,以三轴汽车荷载作为示例介绍了影响线坐标值标定过程,并给出了汽车荷载计算的通用矩阵表达式,为下一步进行设备开发的软件程序提供了理论支持。The bridge weigh-in-motion system, based on the bridge structure influence line calculation, at- tracts many researchers＇ attention extensively abroad. Portability and recyclability are advantages of B-WIM sys- tem. Some foreign products are also applied for existing bridge evaluation while few research papers can be found in China. As its application can provide the existing bridge with real vehicle load data for bridge condition evalu- ation, the operation principles of the whole system are introduced in detail. With an example of a 3-axle truck, the influence line ordinate generation is elaborated. The general form of matrix method is listed for vehicle axles load calculation. The content discussed in this paper can be used as the basis for software generation of B-WIM system.

关 键 词：桥梁结构 动态称重系统 汽车荷载 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]