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A Study on the Behavior of Steel Curved Girder Bridge during Construction  

Gil, Heung Bae (한국도로공사 도로교통기술원)
Pae, Chang Kyu (한국도로공사 도로교통기술원)
Kang, Sang Gyu (한국도로공사 도로교통기술원)
Publication Information
Journal of Korean Society of Steel Construction / v.17, no.5, 2005 , pp. 511-518 More about this Journal
Abstract
The behavior of steel curved bridges is more complicated than straight bridges, thus the analysis, design and construction process of curved bridges require much more attention. In design of curved bridges, the grillage analysis using general structural analysis program or special program is mainly used. Comparative study in coherence between these analytical results and actual behavior of curved bridges has been rarely conducted. To study the behaviour of curved bridges and verify the current design method, field measurements and analyses using general structural analysis program and 3-D refined analysis program were carried out for simple and continuous bridges in this study. The study focused on the behavior of curved steel bridges during construction. Measured and analytical results had quantitative difference mutually, but there were qualitatively similar. Stress variations in transverse direction of flange were observed and grillage analysis models yielded more conservative values than 3-D refined analysis models.
Keywords
Curved bridge; Box girder; Field measurement; Grillage analysis; Refined analysis;
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