A New System for Dynamic Deflection Measurement of Highway Bridge
The bridge deflection measurement is an important component to the bridge examination and a important target to the security appraises.Using Slope sensor to test the Dynamic deflection is a good way for highway bridge deflection detection.In this paper, we develop a new slope sensor and new theory to fast calculate deflection from slope angle.It has been use to detect the dynamic deflections of songhuajiang bridge on Harbin-Changchuen highway when car cross at kinds of speed.The test result indicates: comparing with the measurement results of photoelectric deflection detection system, the dynamic deflection measurement results of slope sensors are much closed.Their deflection curves are also similar.The result also shows: Using our slope sensors to test highway bridge dynamic deflection can get precise results and can satisfy the highway bridge deflection testing request.It is also very easy to use.You can finish the testing easily and do not stop the traffic.
Highway Bridge Dynamic deflection slope sensor Photoelectric deflection detection Deflection measurement
Xianlong He Tianli She Lizhen Zhao
Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;Key Laborator Institute of Disaster Prevention Science and Technology,HeBei Shanhe,065201,China
国际会议
上海
英文
1645-1650
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）