TEST ANALYSIS ON DETERMINING DYNAMIC DEFLECTION BY USING
R8 GNSS, TCA2003 AND SPRINTER 200M
1)Engineering Research Center of Catastrophic Prophylaxis and Treatment of
Road and Traffic Safety, Ministry of Education, Changsha 410004
2）School of Communication and Transportation Engineering, Changsha University of Science
and Technology, Changsha 410004
Abstract：In order to investigate the detection capability of conventional measurement techniques in the dynamic load test, Trimble R8 GNSS/RTK technology, TCA2003 automatic tracking 3D coordinates measurement and SPRINTER 200M digital leveling are applied to synchronously monitor the deflection displacement of a damped oscillation, which has a designed frequency of 0.5 Hz and mm level amplitude in this test. Based on the FFT algorithm, spectral information was independently calculated out from these observed data, this paper makes a comparative analysis combined the dynamic deflection. The results show that the TCA2003 automatic tracking measurement techniques can accurately measure and truly reflect the characteristics of the dynamic deformation; the SPRINTER 200M digital leveling can monitor the overall trend of dynamic deflection, but only get a certain harmonic frequency; and GNSS/RTK technology could only acquire a certain harmonic frequency.
Liao Zhongping,Hua Sainan,Liu Ning et al. TEST ANALYSIS ON DETERMINING DYNAMIC DEFLECTION BY USING
R8 GNSS, TCA2003 AND SPRINTER 200M[J]. jgg, 2013, 33(5): 116-119.
