吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (增刊1): 198-201.

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Displacement response testing method of beam bridges based on strain gauge

SONG Yan-jun, LIU Han-bing, TAN Guo-jin, WANG Long-lin   

  1. College of Transportation, Jilin University, Changchun 130022, China
  • Received:2012-06-22 Online:2012-09-01 Published:2012-09-01

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Abstract: First of all, by using the mechanical relation of beam bridge displacement, strain and bending curvature, the mathematical model to calculate the bridge displacement with the measured strain data was established. And then, the model solution was realized with the generalized least squares principle so as to result in the beam bridge displacement response algorithm based on strain gauge eventually. Finally, one numerical example was calculated for verifying the feasibility and accuracy of the proposed method, its accuracy can meet the requirement of engineering application well. Besides, this method can analyze real-time bridge displacement just by use of the existing strain data but no need for any displacement device.

Key words: road engineering, strain gauge, displacement response, beam bridge, deflection function

CLC Number: 

  • U441
[1] 何天宝, 张永水, 郑惠琴. 倾角仪测量结构变形的方法及其精度分析[J]. 交通科技, 2008(6):48-50. He Tian-bao, Zhang Yong-shui, Zheng Hui-qin. Method of measuring structural distortion by inclinometer and accuracy analysis[J]. Transportation Science & Technology, 2008(6):48-50.

[2] 杨学山, 侯兴民, 廖振鹏, 等. 桥梁挠度测量的一种新方法[J]. 土木工程学报, 2002,35(2):92-96. Yang Xue-shan, Hou Xing-min, Liao Zhen-peng, et al. A new method for bridge deflection measurement[J]. China Civil Engineering Journal, 2002,35(2): 92-96.

[3] 杨小森, 闫维明, 陈彦江, 等. 基于倾角仪的桥梁挠度测试方法研究[J]. 土木工程学报, 2010, 43(增刊2):106-111. Yang Xiao-sen,Yan Wei-ming,Chen Yan-jiang,et al. A Bridge deflections testing method based on using inclinometers[J]. China Civil Engineering Journal, 2010, 43(Sup.2):106-111.

[4] Hou Xing-min, Yang Xue-shan, Huang Qiao. Using inclinometers to measure bridge deflection[J]. Journal of Bridge Engineering, 2005, 10(5): 564-569.

[5] Lin S S, Liao J C. Lateral response eva luation of single piles using inclinometer data[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2006, 132(12):1566-1573.

[6] Ooi P S K, Ramsey T L. Curvature and bending moments from inclinometer data[J].International Journal of Geomechincs,2003,3(1):64-74.

[7] 叶贵如, 周玉龙. 倾角仪在大跨度桥梁挠度检测中的应用[J]. 公路交通科技, 2009, 26(11): 103-106. Ye Gui-ru, Zhou Yu-long. Application of inclinometer in deflection test for long-span bridges[J]. Journal of Highway and Transportation Research and Development, 2009, 26(11):103-106.
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