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http://dx.doi.org/10.5762/KAIS.2015.16.7.4936

Hydraulic Analysis Using a Two-Dimensional Model(I) : Flow Analysis around Bridge Piers with Pier Shapes  

Kim, Eung-seok (Department of Architecture, Architectural Eng. & Civil Eng., Sunmoon University)
Lee, Seung-hyun (Department of Architecture, Architectural Eng. & Civil Eng., Sunmoon University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.7, 2015 , pp. 4936-4941 More about this Journal
Abstract
This study(I) has analyzed hydraulic characteristics with pier shapes by the bridge construction. The pier shapes are classified into total six types such as square, rhombus, octagon, oval, round, and no-piers. One-dimensional model(HEC-RAS) and two-dimensional model (RMA-2) were employed to analyze hydraulic characteristics around bridge piers. Square and rhombus shapes of piers showed velocity vectors in the upstream direction, which has a significant impact on the river bed changes by erosion and sediment transport around the piers. The flow characteristics of the oval type pier was most similar to that of no-pier situation almost without disrupting the river flow. This analysis can help to select pier types in the new bridge construction for the future.
Keywords
Piers shape; HEC-RAS; RMA-2;
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