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TECHNICAL PAPERS

Time Domain Identification of Moving Loads on Bridge Deck

[+] Author and Article Information
X. Q. Zhu, S. S. Law

Civil and Structural Engineering Department, Hong Kong Polytechnic University, Hong Kong, PR China

J. Vib. Acoust 125(2), 187-198 (Apr 01, 2003) (12 pages) doi:10.1115/1.1547662 History: Received December 01, 2000; Revised October 01, 2002; Online April 01, 2003
Copyright © 2003 by ASME
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References

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Figures

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Vehicle moving on the deck
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Layout of the bridge deck (Dimensions are in mm)
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Identification with different noise levels (- True loads; --1% noise;[[ellipsis]] 5% noise.)
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A typical single span bridge
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An orthotropic plate subject to action of moving loads
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Identified results for different eccentricities (1% noise) (- True loads;-. e=0; [[dashed_line]]e=1/8b;[[ellipsis]] e=3/8b.)
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Identified wheel loads for different combinations of measured modal information (- static loads; - m=3,n=2(9); [[dashed_line]]m=3,n=3(15);[[ellipsis]] m=3,n=2(15).)
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Identified axle loads for different combinations of measured modal information (- static loads; - m=3,n=2(9); [[dashed_line]]m=3,n=3(15);[[ellipsis]] m=3,n=2(15).)
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Identified total load from using different modes (- static loads; - m=3,n=2(9); – – – m=3,n=3(15);[[ellipsis]] m=3,n=2(15).)
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Identification with different mode combination (1% noise) (- True loads; -- m=4,n=5;[[ellipsis]] m=5,n=4.)

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