Abstract

This study aims to discuss the structural response to drift, its ductility, and performance level of the inclined column in 3 different types of structure variations which are subjected to earthquake loads stated in SNI 1726-2019 and ATC-40. The models were designed with 3 types of structure variations, specifically in the position of inclined columns. The three structural models were analyzed using the pushover analysis method and their performance tested with various earthquake loads based on SNI 1726-2019 using the ETABS software. The analysis of the three structural models with variations in the position of inclined columns on different floors showed that the largest drift occurred in structures with sloping columns on the lower floor. The ductility of each model was obtained through the pushover analysis, and the procedure yielded maximum values at the sloping column in the mid floors compared to the bottom and top-most column analysed. Seismic evaluations conducted on the models based on ATC-40 showed that at maximum elastic and inelastic drifts, the structures can be categorized into Damage Control (DC) while in both the positive and negative Y direction, the model with a lower inclined column falls under the Life Safety (LS) category.