Impact of Changes in SNI 1726 and SNI 2847 on Reinforcing Steel Weight of High-Rise Reinforced Concrete Buildings in Jakarta

Updates to the Indonesian seismic design code (SNI 1726) and the reinforced concrete design code (SNI 2847) have been implemented in practice simultaneously. Under these new codes, seismic loads increase significantly, especially for high-rise buildings in many areas of Indonesia, and the design requirements for concrete reinforcement become much more stringent. Therefore, it is predicted by the construction industry that there will be a significant increase in the need for reinforcing steel. By using a 32-story reinforced concrete case study building with a special moment resisting frame system as its lateral force resisting system, this paper presents a comparison of the design reinforcing steel weight when the building is designed based on a combination of SNI 1726:2012 and SNI 2847:2013, and when it is designed using a combination of SNI 1726:2019 and SNI 2847:2019. This study shows that although the increase in seismic load is significant, the increase in reinforcing steel is much lower, and the result can then be a reference of the increase in design reinforcement based on the latest codes.