Paper Title:
Field Test and Analysis on Impact Factor Spectrum for a Continuous Bridge under Random Traffic Flow
  Abstract

Field test and analysis were carried out for dynamic responses on a continuous bridge under open traffic. The inspection, testing and analysis for the tested bridge mainly consist of the measurement of pavement roughness and analysis on power spectral density, the testing and analysis on natural vibration characteristics, the observation of traffic loads under open traffic and the corresponding measurements of dynamic displacement and acceleration on bridge. To determine impact factors in terms of measured dynamic displacement responses, low pass Butterworth filter is used for filtering the dynamic part of measured dynamic displacement and the static extreme values are reserved. Finally, the relationship between impact factors and vehicle weight, vehicle speed is studied. It was found that impact factor tends to decrease with increasing vehicle weight, and integrally speaking, the impact factor increases gradually as the vehicle speed is increased within a wide range.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
1226-1231
DOI
10.4028/www.scientific.net/AMR.250-253.1226
Citation
W. S. Han, T. Wang, S. J. Yuan, "Field Test and Analysis on Impact Factor Spectrum for a Continuous Bridge under Random Traffic Flow", Advanced Materials Research, Vols. 250-253, pp. 1226-1231, 2011
Online since
May 2011
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Price
$32.00
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