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http://dx.doi.org/10.7843/kgs.2020.36.11.83

Response Dominant Frequency Analysis for Scour Safety Evaluation of Railroad Piers  

Jung, Hyun-Seok (Advanced Infrastructure Research Team of Korea Railroad Research Institute)
Lee, Myungjae (Railroad Structure Research Team of Korea Railroad Research Institute)
Yoo, Mintaek (Railroad Structure Research Team of Korea Railroad Research Institute)
Lee, Il-Wha (Advanced Infrastructure Research Team of Korea Railroad Research Institute)
Publication Information
Journal of the Korean Geotechnical Society / v.36, no.11, 2020 , pp. 83-95 More about this Journal
Abstract
In order to evaluate the stability of the geo-structure of railway bridge, the response dominant frequency was analyzed based on a series of impact vibration load test results. The specifications of the experiment piers were obtained by referring to the completion design data, and when data was missing, a field study was conducted. The impact vibrations test according to the scouring progress was carried out at one pier scheduled to be abandoned, and it was confirmed that the response dominant frequency can be utilized as an evaluation index for scour. In addition, the response dominant frequency was measured through an impact load test at 46 piers in 5 bridges in operation, and the scour safety of the bridge was evaluated by comparing it with the japanese proposal formula.
Keywords
Impact load; In-situ test; Railway bridge pier; Response dominant frequency;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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