Numerical Analysis on Load Carrying Capacity of Castellated Beam by Varying Web Opening

Castellated Element is a structural element made from the structural steel I section which has been used as a structural beam as well as a column for the past few decades in the construction field due to its high value of the moment of inertia. This paper is focusing on the determination of the ultimate load carrying capacity of the castellated beam for an irregular dodecahedron web opening and its results are compared with a castellated beam of hexagonal web opening. The criteria considered are deflection and the ultimate load carrying capacity of the beam by the varying parameters, like depth of the section, depth of opening and opening angle. ISMB 150 is considered as a parent beam for the creating the model of the castellated beam. The depth of the castellated beam (CB225, CB240 and CB255) is increased with an expansion ratio of 1.5, 1.6 and 1.7, respectively. The FEM software (ANSYS) is used for the numerical analysis of the castellated beam.