Core Time

[P-37] AN OVERVIEW OF POST-DISASTER RISKS TO SCHOOL FACILITIES IN ACEH PROVINCE OF INDONESIA

*Ella Meilianda^1,3, Yunita Idris^1,3, Roberto Gentile², Carmine Galasso² (1. Tsunami and Disaster Mitigation Research Center (TDMRC) Syiah Kuala University, 2. University College London, 3. Civil Engineering Department, Engineering Faculty, Syiah Kuala University)

Keywords:school buildings, retrofit, construction, post-disaster, Aceh

Over 200 school buildings in the districts of Pidie, Pidie Jaya and Bireuen, Aceh Province of Indonesia were assessed after the event of a major earthquake in December 2016, using Rapid Vulnerability Assessments (RVA) method to assist post-disaster school retrofitting and reconstruction program. Also, the 2004 Tsunami was included in RVA to assess multiple natural hazards known to affect the area. Separately, assessment of 85 reinforced concrete school buildings at the capital city of Banda Aceh was conducted using a combination of INSPIRE seismic risk prioritization index and the Papathoma Tsunami Vulnerability Assessment (PTVA) to assess the multi-hazard prioritization scheme. The objective is to assess the damage and vulnerability of post-earthquake school facilities that were affected, retrofitted or newly built after the events of disasters in different locations across the Aceh Province. Both methods use the entire data collections to define the representative type of buildings. Lateral support system for the typical construction was analyzed using pushover analysis to estimate the potential damage levels of the buildings, ductility ratio and further achieving the fragility curve of the typical school construction. The results reveal that school building construction practices and techniques have remained relatively unchanged over the last 40 years in Aceh Province. However, the types of school buildings in Banda Aceh were found to be slightly different from the ones in Pidie, Pidie Jaya, and Bireuen. The domination of reinforced concrete (lateral frame supporting system) was found in Banda Aceh, while in Pidie, Pidie Jaya and Bireuen the school buildings majority was masonry (wall support system). Despite a simplified post-disaster building retrofit is feasible, however, the improvement of Indonesian building standards incorporating seismic retrofitting strategy is urgently needed. This study contributes to elaborate on the recommendation of the retrofit system of the post-disaster construction as one of the structural mitigation strategies.