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Computation 2018, 6(1), 8; https://doi.org/10.3390/computation6010008

3D FEM Analysis of a Pile-Supported Riverine Platform under Environmental Loads Incorporating Soil-Pile Interaction

1
Department of Civil Engineering, Technological Educational Institute of Western Greece, GR-26334 Patras, Greece
2
Department of Civil and Architectural Constructions, Faculty of Industrial Education, Sohag University, Sohag 82524, Egypt
*
Authors to whom correspondence should be addressed.
Received: 14 December 2017 / Revised: 17 January 2018 / Accepted: 23 January 2018 / Published: 25 January 2018
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Abstract

An existing riverine platform in Egypt, together with its pile group foundation, is analyzed under environmental loads using 3D FEM structural analysis software incorporating soil-pile interaction. The interaction between the transfer plate and the piles supporting the platform is investigated. Two connection conditions were studied assuming fixed or hinged connection between the piles and the reinforced concrete platform for the purpose of comparison of the structural behavior. The analysis showed that the fixed or hinged connection condition between the piles and the platform altered the values and distribution of displacements, normal force, bending moments, and shear forces along the length of each pile. The distribution of piles in the pile group affects the stress distribution on both the soil and platform. The piles were found to suffer from displacement failure rather than force failure. Moreover, the resulting bending stresses on the reinforced concrete plate in the case of a fixed connection between the piles and the platform were almost doubled and much higher than the allowable reinforced concrete stress and even exceeded the ultimate design strength and thus the environmental loads acting on a pile-supported riverine offshore platform may cause collapse if they are not properly considered in the structural analysis and design. View Full-Text
Keywords: riverine platform; offshore structure; pile group foundation; soil-pile interaction; environmental loads; materially nonlinear static analysis; FEM riverine platform; offshore structure; pile group foundation; soil-pile interaction; environmental loads; materially nonlinear static analysis; FEM
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Kontoni, D.-P.N.; Farghaly, A.A. 3D FEM Analysis of a Pile-Supported Riverine Platform under Environmental Loads Incorporating Soil-Pile Interaction. Computation 2018, 6, 8.

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