Electronic Theses and Dissertation

Banyak peristiwa gempa bumi telah banyak menyebabkan kerusakan bangunan. Ketika terjadi bencana gempa diharapkan puskesmas sebagai fasilitas kesehatan yang lazim diakses oleh masyarakat dapat bertahan dalam menerima beban gempa yang ditimbulkan. Penelitian ini dilakukan asesmen secara visual pada fasilitas puskesmas di Kota Banda Aceh, dengan total keseluruhan berjumlah 11 Puskesmas hingga menghasilkan probabilitas kerusakan bangunan akibat gempa dengan pengembangan kurva kerapuhan (fragility curve). Pendekatan Incremental Dynamic Analysis (IDA) yaitu analisis penambahan beban tekan lateral berdasarkan analisis Non-Linier Time History (NLTH) menganalisis sebanyak 8 rekaman gempa. Peak Ground Acceleration (PGA) sebagai intensity measure (IM) dan drift ratio sebagai damage measure dipakai dalam menghasilkan kurva IDA dan hasil akhir yang didapat merupakan kurva kerapuhan (fragility curve). Pada pendekatan Static Pushover to Fragility (SPO2FRAG) spektral akselerasi (Sa) memperkirakan kurva kerapuhan pada struktur bangunan menggunakan hasil analisis pushover static. Kurva kerapuhan dengan pendekatan IDA menunjukan hasil bahwa bangunan tipikal puskesmas di kota Banda Aceh yang memiliki PGA 0,6 g memperoleh hasil probabilitas kerusakan 100% yang dikategorikan sebagai slight damage dan moderate damage sedangkan pada extensive damage nilai probabilitas sebesar 75%. Pada pendekatan SPO2FRAG spektral akselerasi (Sa, T1) memiliki nilai Sa 0,9 g. Kurva kerapuhan SPO2FRAG arah x menunjukan kerusakan immediate occupancy pada probabilitas 100%, kerusakan life safety pada probabilitas 98% dan kerusakan collapse prevention 50%. Pada Kurva kerapuhan arah y menunjukan kerusakan immediate occupancy pada probabilitas 100%, kerusakan life safety pada probabilitas 100% dan kerusakan collapse prevention 60%. Manfaat dari penelitian ini adalah memberikan informasi kapasitas bangunan dan upaya mitigasi pada bangunan tipikal puskesmas akibat dari kerusakan tersebut.

Many earthquake disasters have caused a lot of damage to buildings. When an earthquake disaster occurs, it is hoped that puskesmas as health facilities that are commonly accessed by the people can survive in accepting the earthquake burden. This study was conducted visually assessed at puskesmas facilities in Banda Aceh City, with a total of 11 Puskesmas to produce the probability of building damage due to the earthquake with the development of a fragility curve. The Incremental Dynamic Analysis (IDA) approach, which is an analysis of lateral compressive load addition based on a Non-Linear Time History (NLTH) analysis, analyzed as many as 8 earthquake records. Peak Ground Acceleration (PGA) as an intensity measure (IM) and drift ratio as a damage measure are used in producing an IDA curve and the final result obtained is a fragility curve. In the Static Pushover to Fragility (SPO2FRAG) approach, theacceleration spectral (Sa) estimates the brittleness curve in building structures using the results of static pushover analysis. The fragility curve with the IDA approach shows the results that a typical building of a health center in the city of Banda Aceh which has a PGA of 0.6 g obtained a 100% probability of damage which was categorized as slight damage and moderate damage while in extensive damage the probability value was 75%. In the SPO2FRAG approach, the acceleration spectral (Sa, T1) has a value of Sa 0.9 g. The SPO2FRAG fragility curve in the x direction shows immediate occupancy damage at 100% probability, life safety damage at 98% probability and 50% collapse prevention damage. The y-direction fragility curve shows immediate occupancy damage at 100% probability, life safety damage at 100% probability and 60% collapse prevention damage. The benefit of this study is to provide information on building capacity and mitigation efforts on typical puskesmas buildings as a result of the damage.