Analysis of the Use of Finite Element Modeling (FEM) to Simplify the Design Equation for Web Tapered-I Beams

Author(s): Nakul Misra and Dr. Gaurav Shukla

Abstract:

The web-tapered I-columns exhibit the ability to withstand flexural buckling and lateral torsional buckling at specific locations, while the capacity in other areas of the member is comparatively reduced. It is necessary to focus on the non-prismatic members to determine the buckling capacity, and standard procedures should be established in accordance with Indian Code IS 808:2021. This research investigates simulated finite element models encompassing 60 web tapered column sections with taper ratios (h2/h1) ranging from 1.0 to 3.0, utilizing FEA software ANSYS. This research presents a comprehensive Eigen-value buckling analysis, resulting in a novel design equation for the calculation of the buckling load of web tapered I columns. This equation is capable of predicting the buckling stress for any taper ratio of web tapered I columns of varying lengths.

Keywords: Finite Element Modelling (FEM), Tapered-I Beams, Stress Analysis, ANSYS Structural Stability, Eigen Value Buckling

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