Abstract
History records that Aceh has been hit by earthquakes several times, including the largest recorded, on December 26, 2004 with a magnitude of 9.3 SR. In connection with the history of disasters that have occurred, there is a need for safety and disaster preparedness. It is very important to conduct a feasibility study of the existing public buildings used in disaster preparedness for vulnerability against earthquakes. The type of building damage caused can predicted by referring to the fragility curve. This research conducted on evaluating the seismic performance of existing buildings in Banda Aceh City by developing a fragility curve based on Incremental Dynamic Analysis (IDA). The existing buildings that are the main focus of this study include the Tsunami Vertical Evacuation (TVE) of Lambung, TVE Alu Deah Teungoh, TVE TDMRC, SDN 48 Banda Aceh, SMPN 11 Banda Aceh, Baiturrahim Ulee Lheu Mosque, and the Subulussalam Punge Mosque. The IDA method is applied to predict and estimate the performance of the structure using several ground motions. The resulting set of IDA curves were further analyzed to form the fragility curve. The fragility curve becomes the basis for assessing the seismic performance of building structures rationally.
Highlights
Aceh province is located on a megathrust and ring of fire, with the potential for a large earthquake to occur
The results of the Incremental Dynamic Analysis (IDA) curve analysis for earthquakes in the x and y directions can be seen in Figures 16 to 29
The variables needed are the ground motion parameter (PGA), the average of the ground motion parameters according to the limit state, and the total uncertainty
Summary
Aceh province is located on a megathrust and ring of fire, with the potential for a large earthquake to occur. History records that several large earthquakes have occurred in Aceh. In 2004 an earthquake measuring 9.3 on the Richter Scale devastated the city of Banda Aceh which was followed by a tsunami. In connection with the history of disasters that have occurred, there is a need for safety and disaster preparedness, especially in dealing with building damage. Feasibility studies of existing buildings against earthquakes are very important to do because existing buildings are buildings used in disaster preparedness. The type of building damage caused by the earthquake can be seen and predicted by referring to the fragility curve. The fragility curve is a curve that shows how big the probability of the building's vulnerability when exposed to an earthquake [1]
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