Comparative analysis of the flexural capacity of conventional steel beams with Castellated beams

Abstract

Abstract South Kalimantan, especially Banjarmasin City, has a thick layer of soft soil. Low bearing capacity is a major issue in planning the structure. Castellated beam is an innovation to create high structural capability with low weight. This research aims to gain the effect of the hexagonal opening angle on the bending capacity of the castellated beam. The research was conducted by numerical testing using ANSYS. This research compares the flexural capacity of conventional steel beams to the geometric effect of castellated beam with hexagonal opening angle variations. This research concluded that the geometric effect of a castellated beam can provide an increase in flexural capacity of about 8 to 19% compared to conventional steel beams. The optimum bending capacity is at the hexagonal opening angle of 45° to 50°. At the 60° opening angle, the castellated beam has decreased its flexural capacity.