Seismic Vulnerability Evaluation of Existing Structures Using the Rapid Visual Screening Method in Malang City

Abstract

Indonesia is characterized by its volcanic mountain ranges and bordered by several tectonic plates. This geographical setup makes Indonesia susceptible to both tectonic and volcanic earthquakes. The Indonesian National Standardization Body issued the latest earthquake regulations in 2019, leading to changes in the seismic hazard values used as reference in seismic design. As a result of these regulation changes, seismic load designs have been updated. While these regulations are applicable to the planning of new buildings, it’s equally important to assess existing structures to determine if they can withstand the updated seismic loads. This research focuses on evaluating the vulnerability of older buildings constructed before the implementation of the new earthquake regulations. The assessment method employed is Rapid Visual Screening (RVS). This study was conducted in Malang City, as it falls within an area of moderate to high seismicity. After conducting the RVS method, a numerical analysis was performed on a sample of buildings for comparison. The research findings indicate that the examined buildings are still capable of withstanding the updated seismic loads.