DefinePK

Abstract

Purbalingga, Indonesia, is regency with moderately high seism city potential requiring compliance with planning and implementation rules for earthquake-resistant structural systems. We evaluate the performance of a ten-story irregular apartment building model in Purbalingga due to the seismic load. It is necessarily conducted in order to provide information on impacts and mitigation strategies that should be implemented. The evaluation is performed based on seismic loads given in the 2002 and 2012 Indonesian National Standard (SNI) using linear static analysis, dynamic response analysis, and pushover analysis. Based on linear static analysis, the drift ratio decreases by an average of 34.42 and 32.61% for the X and Y directions respectively. Meanwhile, based on the dynamic response analysis, the drift ratio also decreases by an average of 30.74 and 27.33% for the X and Y directions respectively. In addition, the pushover analysis indicates that the performance of this apartment building model is still at Immediate Occupancy (IO) level, the post-earthquake damage state in which the building remains safe to occupy, essentially retaining the pre-earthquake design strength and stiffness of the structure. The risk of life-threatening injury as a result of structural damage is very low, and although some minor structural repairs may be appropriate, these would generally not be required prior to re-occupancy.