Vibration Measurements of the Foot-Bridges Using Mobile-Phone

휴대용 계측기를 이용한 보도교 진동계측분석

Do, Ki-Young;Yoon, Sung-Won;Kim, Do-Hyun

  • Received : 2013.09.24
  • Accepted : 2013.10.21
  • Published : 2014.03.15


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 Korean foot-bridge. This paper is concerned with the vertical natural 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 16 structures in Seoul are given. Regression formulas of natural frequency for steel-framed foot-bridges are suggested. Finally, obtained formula are compared with empirical expressions of Seoul City's guideline.


Mobile-phone;Vibration Measurement;Frequency;Foot-bridges


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Supported by : 서울과학기술대학교