Pushover analysis of multi-storey concrete structures

Abstract

Indonesia is located at the confluence of three main tectonic plates which makes it one of the countries with the highest earthquake risk in the world. Recorded experiences has showed that the earthquake cause damage to buildings particularly multi-storey building structures. The purpose of this study is to determine the performance level of multi-storey reinforced concrete structures using a performance-based design method based on the ATC-40 and FEMA 440 regulations. The buildings in this study are 4-storey and 8-storey buildings. The effect of column size, beam size, and concrete quality are investigated. This study results the performance level, capacity curve, level of effectiveness of variations based on pushover analysis using the ATC-40 and FEMA 440. It can be concluded that the building structure is considered as Operational category based on the ATC-40 and FEMA 440 regulations. On the other hand, for the level of effectiveness of variations in building structures, it is more effective to enlarge the column cross-sectional dimensions and increase the height of the beam for 4-storey and 8-storey buildings, respectively.