Evaluating the Evolution of Seismic Design Standards in Indonesia: Differences Between SNI 2833:2016 and SNI 2833:2008 for Bridge Structures
摘要
Bridges play a crucial role in the transportation infrastructure, connecting regions, and facilitating economic growth. However, their structural integrity is vulnerable to seismic events, necessitating careful consideration of the earthquake loads during design and construction. In Indonesia, the seismic design standards for bridge structures were updated in 2016 (SNI 2833:2016), reflecting advancements in knowledge and technology. This study aims to compare the seismic parameters outlined in SNI 2833:2016 with those of its predecessor, SNI 2833:2008, and evaluate their implications for bridge design. This research focuses on analyzing differences in earthquake coefficient values and shear forces between the two standards, considering variations in abutment height, location (seismic zone), and soil type. The methodology involves numerical analysis using SAP2000 software and data obtained through the LINI application in compliance with SNI 1725:2016 for design loads. The findings reveal that SNI 2833:2016 generally produces higher earthquake coefficient values and shear forces than SNI 2833:2008, indicating improved seismic resilience. Furthermore, a direct relationship was observed between the abutment height, seismic zone, and soil type variations and the resulting seismic response of the bridge structures. These findings underscore the importance of comprehensive design considerations and informed decision-making in enhancing the seismic resilience of bridge infrastructure in Indonesia.