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Proceedings Paper

Using the global positioning system (GPS) to gain three-dimensional dynamic information of bridge pylon
Author(s): Dongjie Yue; Zhiqiang Gu; Chang Xu
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Paper Abstract

Combining with the actual situation of 300m pylon of Su-tong Bridge, the feasibility that GPS technology is applied in monitoring of the pylon is analyzed. Starting from the survey principle of GPS technology, the error source and weakening method is analyzed; the precision of kinematical surveying is estimated. According to the pylon dynamic characteristic, the key technique and the implementation points are proposed that GPS is applied in gaining three-dimensional dynamic information of the pylon. Specially, the sampling frequency and the coordinates system is analyzed in detail. According to the actual test data, the wavelet analysis technology and the spectrum analysis technology are separately used to research the dynamic movement of the pylon such as long and short periodic change, the frequency and amplitude of vibration, and the result is compared with the design dynamic performance, they value is quite coincidence. The experimental analysis indicated that, GPS technology could be used to survey the dynamic characteristic of tall and erect building same as of Cable-Stayed Bridge.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67957F (10 November 2007); doi: 10.1117/12.775517
Show Author Affiliations
Dongjie Yue, Hohai Univ. (China)
Zhiqiang Gu, Hohai Univ. (China)
Chang Xu, Hohai Univ. (China)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Jiaolong Wei, Editor(s)

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