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Analysis of Moving Vehicle Load Distribution of Curved Steel Box Girder Bridges considering Various Support Conditions  

Kim, Sang Hyo (연세대학교 사회환경시스템공학부)
Lee, Yong Seon (연세대학교 토목공학과)
Cho, Kwang Yil (연세대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.6, 2002 , pp. 711-720 More about this Journal
Abstract
A 3-D numerical model, which could demonstrate the static and dynamic responses of a curved bridge more precisely with the moving vehicles, was developed The dynamic response induced by the centrifugal rolling motion of vehicle was identified according to the variations of the partial grade and the curvature of the slab. Dynamic characteristics of the curved bridge with the moving vehicle were analyzed under the condition of support types and two different support systems. Parametric studies were conducted to compare the efficiency of load distribution in the curved bridge. In general, while the vehicle was crossing the curved bridge, negative reaction occurred in the inside of the girder. The final result showed that the support system located outside the girder was more advantageous than other systems, and the characteristics of load distributions differed from the others in the various conditions of support systems.
Keywords
Curved Bridge; Moving Vehicle; Centrifugal Force; Rolling Effect; Bridge-vehicle Interaction; Shoe Arrangement; Upward Reaction; Radius of Curvature; Superelevation;
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