Electronic Theses and Dissertation

Gempa bumi merupakan bencana yang menyebabkan banyak kerugian salah satunya adalah rusaknya infrastruktur. Hal dapat dilakukan dalam usaha mitigasi bencana gempa bumi adalah dengan dilakukannya perkuatan struktur bangunan. Gedung KANWIL BRI Banda Aceh sudah mengalami beberapa retakan pada balok dan kolom akibat gempa.. Setelah kejadian tersebut struktur dilakukan penambahan dinding geser. Kerentanan bangunan di cek dengan cara memodelkan struktur sesuai dengan perbaikan struktur pada aplikasi SAP2000 yang kemudian akan diberikan beban pushover dan time history dengan beban gempa berupa gempa Simeulue 1. Hasil dari analisis pushover dengan standar ATC-40, didapat pada level kinerja Immediate Occupancy, kemudian dari hasil analisis time history didapatkan nilai total displacement dan drift ratio, hasil setelah perkuatan menunjukkan bangunan menjadi lebih baik dalam menahan gaya gempa, pada hasil kurva kerapuhan dengan nilai Sa kota Banda Aceh merupakan 1,102 g mengalami penurunan nilai probabilitas kerusakan pada struktur bangunan setelah perkuatan arah x sebesar 38,11% pada slight damage, 41,48% pada moderate damage, 40,97% pada extensive damage, dan 40,82% pada complete damage. Pada arah y sebesar 1,33% pada slight damage, 2,90% pada moderate damage, 4,95% pada extensive damage, dan 5,31% pada complete damage.

Earthquake is a disaster that causes a lot of losses One of them is the destruction of infrastructure. One thing that can be done in an earthquake disaster mitigation effort is to strengthen the structure of the building. The BRI KANWIL building in Banda Aceh has experienced several cracks in the beams and columns due to the earthquake. After the incident, shear walls were added to the structure. The vulnerability of the building is checked by modeling the structure according to the structural improvement in the SAP2000 application which will then be given a pushover and Time History load with an earthquake load in the form of the Simeulue 1 earthquake. The results of the pushover analysis with the ATC-40 standard, obtained at the Immediate Occupancy performance level, then from the results of the time history analysis, the total displacement and drift ratio values obtained, the results after reinforcement showed the building became better at resisting earthquake forces. In the results of the fragility curve with the Sa value of Banda Aceh city of 1.102 g, there is a decrease in the probability of damage to the building structure after reinforcement in the x direction by 38.11% for slight damage, 41.48% for moderate damage, 40.97% for extensive damage, and 40.82% on complete damage. In the y direction, it is 1.33% for slight damage, 2.90% for moderate damage, 4.95% for extensive damage, and 5.31% for complete damage.