EARTHQUAKE RISK ASSESSMENT FOR DKI JAKARTA

• Main Author: Delfebriyadi
• Format: Dissertations
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/47979
• Institution: Institut Teknologi Bandung

This study presents an earthquake risk assessmet for Jakarta. The structural performance of buildings in resisting seismic loads is used as a measure of vulnerability. The representative fragility curves are constructed based major buildings typologi in the city. The numerical simulations are performed to develope the masonry models used in laboratorium experimental conducted by the previous researcher to be aplicable in deriving of fragility curves for other building typology. We also conduct site amplification calculations by considering the local depth of the bedrock surface layer beneath the city. The results show that the estimated site amplification values were generally smaller than the site amplification values estimated from the Indonesian seismic building code SNI- 1726-2012, in particular for the soft soil site class. The microzonation hazard maps and the maps of damage building of the particular category at defined damage state are produced corresponding to earthquake load of 2500 years and the deterministic scenario of Benioff mechanism. From the earthquake scenario corresponding to Benioff mechanism applied to 12.5 million people population projected at year 2030 in Jakarta, it is about 82% buildings in residential zones will be affected by ground shaking. The casualties caused by building collapses and other building damage projected using adopted HAZUS-MH MR4 application are to be 16,239 fatality and 53,834 hospitalized injured.