Analysis on Impact Factor Spectrum for a Continuous Bridge under Normal Traffic Flow

Zeng Qian Fei; Tao Wang

doi:10.4028/www.scientific.net/AMR.594-597.2792

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Analysis on Impact Factor Spectrum for a...

Analysis on Impact Factor Spectrum for a Continuous Bridge under Normal Traffic Flow

Abstract:

Analysis was carried out for dynamic responses on a continuous bridge under normal traffic flow. 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 normal traffic flow 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. And then，the distribution fit test is performed using K-S methodology for measured impact factors according to Extreme-I type respectively. Finally, the impact factor of this bridge, which is determined based on statistical method, is compared with code-specified impact factors of different countries.

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

2792-2796

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.2792

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Online since:

November 2012

Authors:

Zeng Qian Fei*, Tao Wang

Keywords:

Continuous Bridge, Extreme-I Type, Impact Factor Spectrum, Low Pass Butterworth Filter, Normal Traffic Flow

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* - Corresponding Author

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