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Dynamic Behavior of Plate Girder Railway Bridges using the Finite Element Code  

Oh Ji-Taek (한국철도기술연구원, 남북철도기술개발사업단)
Song Jae-Pil (슈어테크, 기술연구소)
Kim Ki-Bong (중앙대학교, 건설대학 토목공학과)
Kim Hyun-Ho (중앙대학교, 일반대학원 토목공학과)
Publication Information
Journal of the Korean Society for Railway / v.8, no.3, 2005 , pp. 228-234 More about this Journal
Abstract
Investigation on the dynamic behavior of railway bridges has not performed widely to date except high-speed railway bridges. In this study, 3-dimensional model is used for the finite element analysis of plate girder railway bridges. Train loads obtained through statistical approach of the measured true train loads are used. Numerical analysis is carried out about a 18m-span bridge. This result is compared with that of the experimental test of existing plate gilder railway bridge without ballast. The good agreement was obtained through the comparison. Judging from the analysis, resonant speed of diesel locomotive train is about 120km/h. However, the resonance for the other train is not found from the analysis.
Keywords
railway bridge; plate girder bridge; dynamic analysis; resonance;
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