Bridge Weigh-In-Motion using wireless accelerometers on a continuous girder bridge

被引：0
|
作者：
Nagayama, T. [1 ]
Kato, S. [1 ]
Su, D. [1 ]
Wang, H. [2 ]
机构：
[1] Univ Tokyo, Tokyo, Japan
[2] Tongji Univ, Shanghai, Peoples R China
来源：
BRIDGE MAINTENANCE, SAFETY, MANAGEMENT, LIFE-CYCLE SUSTAINABILITY AND INNOVATIONS | 2021年
关键词：
D O I：
10.1201/9780429279119-66
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Vehicular loads on bridges have large variations. Toward rational maintenance of bridges, vehicular loads for each bridge need to be evaluated. While Bridge Weigh-In-Motion (BWIM) has long been studied, the need for strain gauge installation and the calibration with heavy vehicles was a factor against wide-spread use of BWIM. Authors propose BWIM based on wireless accelerometer without strain gauge installation. Wireless accelerometers measure acceleration responses of a steel box girder bridge for more than a week continuously. Deflection is estimated by combining the vertical and longitudinal acceleration measurement. Vehicular weight is evaluated using a genetic algorithm based on the estimated deflection. Vehicle load distribution is estimated.
引用
收藏
页码：511 / 514
页数：4
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