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http://dx.doi.org/10.7782/JKSR.2013.16.5.394

Experimental Performance Estimate of a 40m PSC I Girder for Railway Bridges  

Yeo, Inho (Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society for Railway / v.16, no.5, 2013 , pp. 394-401 More about this Journal
Abstract
Here we report the results of an experimental laboratory test to verify the applicability to railway bridges of a PSC I girder of which the upper flange thickness was increased to improve sectional performance. The thicker this flange is, the further upward the neutral axis is moved. If in this way the span length can be increased to 40m long, the bridge may be constructed with four girders instead of five. Therefore, construction cost could be lowered by reducing the weight of the long span structure due to increased sectional efficiency. It was also necessary to be certain that the dynamic performance of this relatively flexible structure would be applicable to railway bridges. Therefore numerical analysis, as well as static and dynamic tests, was carried out for a full-size PSC I girder. Based on these results, it was verified that the performance of the PSC I railway bridge satisfied the performance criteria of the design code.
Keywords
Railway bridge; PSC-I girder; Laboratory test; Dynamic performance; Performance criteria;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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