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http://dx.doi.org/10.7734/COSEIK.2020.33.6.391

Structural Behavior Analysis of Cap Shaped as an Arch for Suction-Installed Cofferdam  

Kim, Jeongsoo (Korea BIM Research Center, Korea Institute of Civil Engineering and Building Technology)
Jeong, Youn-Ju (Division of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Park, Min-Su (Division of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Song, Sunghoon (Division of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.33, no.6, 2020 , pp. 391-399 More about this Journal
Abstract
In this study, the behaviors of a suction cap shaped as an arch were analyzed using finite element models. The fundamental structural behaviors of both flat- and arch-type caps were compared, and the advantages of the arch-shaped cap were explained. Moreover, the effects of geometric parameters and stiffener arrangements on the stress and deformation of the arch-shaped caps were investigated by comparisons of the changes in the behaviors of the caps. Additionally, the effects of boundary condition at the edge of the cap were analyzed to study the interactions between the cap and cofferdam walls; these results were used to derive the fundamental structural design of stiffened arch caps. Unlike flat caps, the results showed that ring stiffeners could improve the structural behaviors of arch caps remarkably, while the contributions of the radial stiffeners to the structural behaviors of the caps are dependent on constraints at the edges of the caps.
Keywords
suction penetration; cofferdam; arch; dome; finite element analysis;
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Times Cited By KSCI : 12  (Citation Analysis)
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