ANALISIS TRANSFER TOWER DENGAN METODE ASD DAN LRFD

Abstract

The Banko Barat Tanjung Enim transfer tower is a coal handling facility. The operating loads in transfer tower buildings with steel structures are transferred to the base via the pedestal column. In this example, the pedestal column attached to the anchor bolt serves as the transition material from the steel structure to the concrete structure. Connections must be evaluated in order to minimize structural failure due to internal forces generated. The calculations are performed using two methods: LRFD (Load Resistance Factor Design) and ASD (Allowable Safety Design). The response spectrum analysis approach was applied, which was aided by the SAP 2000 application program. The analytical findings show that the structure of the transfer tower is strong against internal forces caused by operating loads, whether employing the LRFD approach or the ASD method. These two approaches conclude that the LRFD method allows the transfer tower structure to sustain nominal shear loads up to 59% higher than the ASD method, while the tensile resistance of anchor bolts is up to 22% higher than the ASD method.