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Response Spectrum Analysis Method of Footbridge Lateral Vibration under Man-Bridge Interaction
Abstract:
Based on the uniform experimental design method and combining with the additional lateral pedestrian role derived from social force, this paper establishes human-bridge dynamic interaction model and calculates dynamic response of simply supported structures with different span, damping ratio, walking stride frequency and other parameters under the man-bridge dynamic interaction. The acceleration response spectrum is obtained by FFT transform of acceleration response. Then RMS-acceleration response spectrum is calculated in accordance with ISO overall frequency weighting method and the response spectrum envelope formula is fitted by parametric analysis.
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1165-1169
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Online since:
November 2013
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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