Detection technique for bridge's micro-deformation based on FOG

被引：0
|
作者：
Gan W.-B. [1 ,2 ]
Hu W.-B. [2 ]
Zhang Y. [2 ]
Liu F. [2 ]
Li S. [2 ]
Fu J.-H. [2 ]
机构：
[1] Key Laboratory of Fiber Optic Sensing Technology and Information Processing of Ministry of Education, Wuhan University of Technology, Wuhan
[2] National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan
来源：
| 1600年 / Editorial Department of Journal of Chinese Inertial Technology卷 / 24期
关键词：
Bridge engineering; Continuous linear; Fiber optic gyroscope; Maximum deflection; Micro deformation;
D O I：
10.13695/j.cnki.12-1222/o3.2016.03.025
中图分类号：
学科分类号：
摘要：
Bridge is an important part of modern transportation systems, and the deformation is a key index for bridge's safety evaluation. Considering that the traditional deformation detection technology has many shortcomings, a continuous deformation measurement system (CDMS) based on fiber optic gyroscope is presented and validated to rapidly achieve the curve measurement of long-span bridge and to timely and accurately locate the bridge's maximum deflection. Experiments on the structure profiles of the calibration road and the solid bridge are made, aided by data comparison with leveling instruments. The results show that the detection accuracy can reach 5 mm for 100 m model bridge, and the detection accuracy can reach 2 cm for the solid bridge with the span of 400 m. The CDMS has no influence on the testing process, which has the advantages of convenient, fast, continuous measurement and high accuracy, especially in large-span bridges. © 2016, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：415 / 420
页数：5
相关论文
共 15 条
  • [1] Specification for inspection and evaluation of load-bearing capacity of highway bridges, (2011)
  • [2] Wang A.-Y., Chen X.-W., Zhang Q., Application of defection measurement methods to bridge loading test, Engineering & Test, 52, 1, pp. 31-33, (2012)
  • [3] Xiong Y.-Y., Chen Y.-J., Feng Z.-X., Et al., The research on load-generated deformation monitoring of Sanshan South Bridge based on terrestrial laser scanning, Geomatics & Spatial Information Technology, 35, 8, pp. 26-29, (2012)
  • [4] Yang X.-S., Yan W.-M., Chen Y.-J., Et al., Bridge deflection testing method based on utilization of inclinometers, China Civil Engineering Journal, 43, pp. 106-111, (2010)
  • [5] Yu Y., Liu H., Li D.-S., Et al., Bridge deflection measurement using wireless MEMS inclination sensor systems, International Journal on Smart Sensing and Intelligent Systems, 6, 1, pp. 38-57, (2013)
  • [6] Roberts G.W., Cosser E., Meng X., Et al., High frequency deflection monitoring of bridges by GPS, Journal of Global Positioning Systems, 3, 1, pp. 226-231, (2004)
  • [7] Yi T.-H., Li H.-N., Gu M., Experimental assessment of high-rate GPS receivers for deformation monitoring of bridge, Measurement, 46, 1, pp. 420-432, (2013)
  • [8] Liu H., Wang T.-T., The bearing capacity of the large span bridge structure detection and strengthening methods, Bulletin of Science and Technology, 29, 7, pp. 204-207, (2013)
  • [9] Meng X., Dodson A.H., Roberts G.W., Detecting bridge dynamics with GPS and triaxial accelerometers, Engineering Structures, 29, 2, pp. 3178-3184, (2007)
  • [10] Tan Q., Discussion on the application of GPS in the measurement of the railway engineering, Heilongjiang Traffic Science and Technology, 10, pp. 70-71, (2014)
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