Vibration Measurements of Steel Foot-Bridges Using Mobile-Phone

Abstract:

The design of foot-bridge is often influenced by natural frequency. Consequently, vibration frequency becomes important. The empirical expressions used to quantify this parameter at the design phase have not been developed enough to give guideline to Korea foot-bridge. This paper is concerned with the frequency of steel foot-bridges. It describes the vibration measurement methods employed for testing structures and presents reliable methods of assessing natural frequency from jumping vibration tests. Data from measurements on 30 structures in Seoul are given. Regression formulas of natural frequency for steel-framed foot-bridges are suggested. Finally, obtained formula is compared with empirical expressions of Seoul Citys guideline and Bachmanns curve.

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 777-780
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.777
• Online since: December 2013
• Authors: Sung Won Yoon, Ki Young Do, Jae Ho Ryu, Young Kyu Ju*
• Keywords: Frequency, Mobile-Phone, Steel Foot-Bridge, Vibration Measurement

References

[1] Standards of Seoul: Facility Design, Construction, and Maintenance Manuals (Seoul's Publications, Korea 2001).

[2] H. Bachmann et al.: Vibration Problems in Structures: Practical Guidelines (Birkhauser Verlag Publications, Basel, Switzerland 1995).