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Research on Base Frequency of Simple Supported Beam Footbridge

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Abstract:

In China, the section 2.5.4 of《Technical Specifications of Urban Pedestrian Overcrossing and Underpass》CJJ69-95 stipulated: In order to avoiding sympathetic vibration and alleviate pedestrian’s sense of insecurity, the frequency of free vibration in the vertical direction of the upper part of the overcross should not be less than 3Hz[1]. Through discussing the rationality on this stipulation and analysing influencing factors of footbridges’ base frequency and its calculation method, limiting base frequency of simple supported beam footbridge with different span which Suits Chinese were drew up in this paper.

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Info:

Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

1595-1599

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.1595

Citation:

Cite this paper

Online since:

November 2012

Authors:

Ting Ting Gao*, Zhe Li, Yu Shi

Keywords:

Base Frequency, Footbridge, Pedestrian Load, Simple Supported Beam

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

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[2] CEB-FIP model code, International federation for prestressing

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[7] Bachmann H.: Vibration Problem in Structure-Practical Guidelines( Birkha User Verlag, Basel 1995)

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[8] Zhenqing Chen, Xugang Hua: Vibration and Dynamic Design of Footbridges ( People's Traffic Press, Beijing2009)

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