Analisis Kinerja Struktur Pada Gedung Rumah Sakit Regina Maris Medan Dengan Metode Riwayat Waktu Menggunakan Software Etabs

Abstract

dan berpotensi menimbulkan korban jiwa. Pergerakan tanah akibat terjadinya gempa bumi dapat menimbulkan getaran dan deformasi yang dapat merusak struktur bangunan. Analisis serta evaluasi perlu dilakukan untuk meminimalisir kejadian yang tidak diinginkan. Penelitian ini bertujuan untuk menganalisis struktur dalam memenuhi persyaratan keamanan berdasarkan SNI 1726:2019 dengan tinjauan simpangan antar tingkat dan ATC-40 yang ditinjau berdasarkan maximum total drift. Analisis struktur yang dilakukan menggunakan metode riwayat waktu dengan bantuan software ETABS V.18. Model gedung dianalisis dengan menggunakan 1 akselerogram gempa masukan. Percepatan akselerogram yang digunakan sebagai gempa masukan perlu diskalakan terlebih dahulu terhadap taraf gempa rencana sesuai objek penelitian. Dari hasil penelitian ini, didapatkan bahwa Menurut ATC-40 jika gedung diberikan gempa Chichi (1999) maka level kinerja struktur adalah structural stability dengan nilai max.drift 0,19 (X) dan 0,16 (Y), jika gedung diberikan gempa Iwate Japan (2008) maka level kinerja struktur adalah structural stability dengan nilai max.drift 0,22 (X) dan 0,17 (Y), dan jika gedung diberikan gempa Northwest California (1938) maka level kinerja struktur adalah structural stability dengan nilai max.drift 0,17 (X) dan 0,15 (Y). Multi-storey buildings are buildings that are vulnerable in the event of an earthquake and have the potential to cause loss of life. Ground movements due to earthquakes can cause vibrations and deformations that can damage building structures. Analysis and evaluation need to be carried out to minimize undesirable events. This research aims to analyze the structure in meeting safety requirements based on SNI 1726:2019 by reviewing the drift between levels and ATC-40 which is reviewed based on the maximum total drift. Structural analysis was carried out using the time history method with the help of ETABS V.18 software. The building model is analyzed using 1 input earthquake accelerogram. The acceleration of the accelerogram used as input earthquake needs to be scaled first to the planned earthquake level according to the research object. From the results of this research, it was found that according to ATC-40, if the building was affected by the Chichi earthquake (1999), the level of structural performance was structural stability with a max.drift value of 0.19 (X) and 0.16 (Y), if the building was affected by the Iwate earthquake Japan (2008) then the level of structural performance is structural stability with a max.drift value of 0.22 (X) and 0.17 (Y), and if the building is subjected to the Northwest California earthquake (1938) then the level of structural performance is structural stability with a value of max. .drift 0.17 (X) and 0.15 (Y).