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Bridge Grillage Analysis using Finite Element Methods
Abstract
This paper introduces a two dimensional bridge deck for a cantilever bridge with a 15 m long span that has been modelled and analysed using computational modelling software (LUSAS) to obtain maximum moments and shear forces. The significance of the problem is to determine the worst scenario case within the deck in terms of highest bending moment and shear force, for example, the most affected parts of deck under load. The problem was tackled with the aid of LUSAS Bridge Plus which is part of LUSAS software package. Generally, LUSAS Bridge Plus works by analysing equations and allowing combinations of load case results.
Keywords: Bridge Engineering, Structural design, Structural analysis, FEA, LUSAS Bridge Plus.