Comparison of 2D and 3D Finite Element Analysis of RC Blocks Culvert Based on Soil-Structure Interaction Using GTS
This paper presents a comparison of soil-structure interaction based on 2D and 3D finite element analyses of
‘Reinforced Concrete Box Culvert’ by using the software GTS (Geotechnical and Tunnel Analysis System). For
buried Structures like Box Culvert, the soil below the structure is to be simulated by elastic spring while surrounding and overlying soil by superimposed load combinations. GTS is the most advanced software, presenting a new paradigm for Box Culvert and other specific geotechnical structures. It is based on expert analysis and advanced graphic technologies. GTS enables engineers to intuitively generate complex geotechnical models. Such modeling capabilities are armed with strong analytic features, powered by a uniquely developed multi-frontal solver with the fastest analysis speed. The difference in values of forces and moments, between 3D FEA and 2D FEA, has been found to be more in large sections (10ft x 10ft) than in small sections (5ft x 5ft) of Box Culverts.
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