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Optimum Design of Prestressed Concrete Girder Railway Bridge II : Optimum Section with 30m Span Length Accounting for Dynamic Stability  

Lee Jong-Min (서울산업대학교 철도전문대학원)
Kim Su-Hyun (서울산업대학교 철도전문대학원)
Jung Jae-Dong ((주)다란 ENC.)
Lee Jong-Sun ((주)남광토건)
Cho Sun-Kyu (서울산업대학교 철도전문대학원)
Publication Information
Journal of the Korean Society for Railway / v.9, no.1, 2006 , pp. 102-109 More about this Journal
Abstract
The PSC girders which currently used at highway bridge have the standard cross sections about 25m, 30m and 35m span. Thus, in case of highway bridge design, the bridge designer can choose the adequate standard cross section according to constructional condition. However, in railway bridge design, there are limitations on reasonable bridge design considering circumstances of a construction site and conditions of location etc, because the PSC girders used at railway bridge have the cross section about only 25m span length. In this study, the optimum design for the PSC girder railway bridge with 30m span length has been performed. Also, in order to investigate the dynamic stability of railway bridge using the optimum section of PSC girder, dynamic analysis has been carried out. From the results of analysis, it is suggested to denote the optimum section which satisfied the structural safety, dynamic stability and economical efficiency all together.
Keywords
PSC girder; Optimum design; Optimum section; Dynamic stability;
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Times Cited By KSCI : 1  (Citation Analysis)
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