Studi Perbandingan Penggunaan Rafter Honeycomb Beam terhadap Tapered Beam sebagai Benchmark Proyek Packaging Building - KEK Sei Mangkei

Abstract

Long-span buildings in the industrial sector, such as factories, warehouses, and aircraft hangars, are generally built using a gable frame structure, as is the case in the packaging building project in this study. This is because the use of a gable frame has several advantages over other structures, namely, it is more efficient in terms of cost and manufacturing process, and provides good rigidity and strength to the building. The cross-sectional modeling of gable frame varies greatly, ranging from I-beam, angle beam, channel beam, composite steel beam, T-beam and H- beam cross-sections. This research focuses on the comparison of material weight and performance between the modified I-beam cross-section to a tapered beam cross-section as a benchmark based on data obtained in the field with honeycomb beam with dimensions HC600x200x8x13. The results of this study show that the design using steel with a honeycomb cross section is more efficient in terms of material weight compared to the tapered section for the packaging building, achieving an efficiency of 8.49%. While in terms of performance, the honeycomb beam section has greater stiffness than the tapered beam, because the inertia of the honeycomb beam profile is greater, it can reduce the occurrence of excessive deflection. The lateral torsional buckling ratio of both cross-sections is safe, but if additional load is applied, the honeycomb beam cross-section will reach its maximum capacity limit faster than the tapered beam.