MEMS传感器在桥梁挠度测量中的应用研究  

Research on the Application of MEMS Sensors in Bridge Deflection Measurement

作　　者：张建明 ZHANG Jian-ming(China Railway 21st Bureau Group Second Engineering Co.,Ltd.,Lanzhou 730000,China)

机构地区：[1]中铁二十一局集团第二工程有限公司,兰州730000

出　　处：《价值工程》2025年第9期109-111,共3页Value Engineering

基　　金：甘肃省高等学校创新基金项目:新型MEMS传感器在土木工程测量中的应用研究(2022A-303)。

摘　　要：桥梁变形监测是桥梁结构健康监测中的重要内容,研究低成本、具备人工智能技术监测桥梁变形意义重大。将桥梁简化为简支梁,基于有限元理论进行变形分析,合理布设MEMS倾角传感器,利用三次样条插值方法拟合桥梁挠度曲线,通过有限元计算和简支梁荷载试验验证MEMS倾角传感器测量计算挠度曲线方法的适用性和准确性。Bridge deformation monitoring is an important part of bridge structural health monitoring,and researching low-cost and artificial intelligence technology for monitoring bridge deformation is of great significance.We simplify the bridge into a simply supported beam,conduct deformation analysis based on finite element theory,reasonably arrange MEMS tilt sensors,use cubic spline interpolation method to fit the bridge deflection curve,and verify the applicability and accuracy of the MEMS tilt sensor measurement and calculation deflection curve method through finite element calculation and simply supported beam load test.

关 键 词：MEMS倾角传感器 有限元 三次样条插值 挠度曲线 

分 类 号：U446[建筑科学—桥梁与隧道工程]