Finite Element Analysis of RCC Beams and Slabs Using COMSOL Multiphysics
Abstract
In the construction of buildings and other civil engineering structures where loads must be transferred from the superstructure to the support members, such as columns and foundations, reinforced concrete beams and slabs are fundamental structural components. The traditional analytical design techniques used to analyse reinforced concrete beams and slabs typically rely on the assumptions of uniform stress distribution, ideal boundary conditions, and linear elastic behaviour of the material. These assumptions are frequently very different from how the structures actually behave under real loading conditions. A computational technique called Finite Element Analysis (FEA) was created to mimic the actual behaviour of reinforced concrete structures while taking into account the three-dimensional stress distribution mechanism. The COMSOL Multiphysics program is used in the current study to conduct the finite element analysis of reinforced concrete beams and slabs. The Solid Mechanics module of the COMSOL software is used to analyse the structural reactions of the reinforced concrete beams and slabs, including bending stress, shear stress, deflection, and the distribution of the applied load. The analytical findings from the classical theory of structural mechanics are contrasted with the outcomes of the numerical simulation of the reinforced concrete structures. Because there is little discrepancy between the analytical and numerical findings, it can be shown that the results from the finite element analysis are fairly accurate. This study demonstrates the effectiveness of COMSOL Multiphysics in analysing and validating the behaviour of reinforced concrete slabs and beams
References
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