期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：5
页码：1-11
DOI：10.1088/1755-1315/252/5/052119
出版社：IOP Publishing
摘要：The strain monitoring information of bridge health monitoring system plays an important role in the safe operation of the bridge, at present, the monitoring methods are mainly use strain monitoring sensors to obtain the bridge strain information in real time, the strain monitoring sensor can be divided into three categories: electric resistance strain sensor, vibrating wire strain sensor, fiber-optic strain sensor according to the test principle. At this stage, in order to meet the metrological traceability requirements of the strain monitoring sensor with the increasing use of strain monitoring sensors, the research institute of highway ministry of transport designed an equi-intensity cantilever beam device for online calibration service in the laboratory based on finite element analysis and mathematical model validation, combining with the disciplines professional knowledge of transportation engineering, mechanical design, machining and materials engineering and so on, and the equi-intensity cantilever beam device can realize the metrological traceability of different types of strain monitoring sensors for the traffic monitoring.
