Optimization of various parameters of castellated beam containing sinusoidal openings

Abstract

This project discusses optimization of the size of opening i.e. depth and width of opening of castellated steel beam containing sinusoidal openings. Optimization of opening of sinusoidal shape was performed using nite element method (FEM). The results of FEM analysis are veri ed by implementing laboratory testing of 150 mm height castellated beam specimen. All the castellated beam specimens were modi ed from 100 mm I beam. Optimum results from FEM analysis was a castellated beam with sinusoidal openings having opening size 0.62 times its overall depth with S/D0 ratio 1.4 and D/D0 1.61. From laboratory testing results and FEM analysis it is observed that, the de ection obtained from FEM result is 1.170 millimeter. While de ection from experiment results is 1.172 millimeter. Percentage variation in above case is almost negligible, that is 0.18 percent