A comparative analysis of seismic and tsunami fragility curves for school buildings in Banda Aceh coastal area

Rifqi Irvansyah,Andrean V H Simanjuntak,Ibnu Rusydy,A Rahman,A Opdyke,I Rusydy,A Suppasri,H.A Haridhi,E Mas,E Meilianda,T Musa,Muksin Muksin,Y Idris

doi:10.1051/e3sconf/202234002003

Abstract

The potential for a large disaster in Banda Aceh City requires that the school buildings to be highly resilient to the risks that may arise. One of the efforts to evaluate the performance of the building structure is by developing a fragility curve that shows the probability of damage to school buildings. For seismic susceptibility, the fragility curve is formed using the Incremental Dynamic Analysis method which uses historical earthquake data. As for tsunami susceptibility, the fragility curve is formed by reviewing the inundation heights that have occurred based on the data that have been available. The aim of this study is to elaborate the seismic and tsunami susceptibility of the typical school buildings that located in three coastal districts in Banda Aceh City. The summary results of this study indicate that it is necessary to carry out periodic maintenance of school buildings in the coastal area of Banda Aceh city so that they become strong buildings and are ready to be used if a large-scale disaster occurs.

Highlights

History records that in 2004 a 9.1 magnitude earthquake, followed by a tsunami, devastated the city of Banda Aceh
It is assumed that in the future, there will be an earthquake with a Peak Ground Acceleration (PGA) value of 0.75 g, the possibility of damage to the school building structure can be seen in Table 6 as follows: Table 6
The results of displacement and drift ratio show that for each modeled tsunami height, it is seen that the building structure deforms and responds differently

Summary

Introduction

History records that in 2004 a 9.1 magnitude earthquake, followed by a tsunami, devastated the city of Banda Aceh. The impact of the earthquake and tsunami caused damage to the structures and infrastructure, public facilities, and other buildings. Learning from the history of disasters, it is important to ensure the planning, construction, and operation of educational facilities fulfill the earthquake and building standards. Indonesian building codes regarding earthquake resistant and tsunami loads for building are following the SNI 1726-2019 [2] and SNI 1727-2020 [3]. The feasibility study of school buildings against earthquake and tsunami hazards is crucial, it is important to ensure that the school building structures are planned to be safe against earthquakes and tsunamis, in coastal areas

Objectives

Methods

Results

Conclusion