Analisis Performa Struktur Bangunan Bertingkat terhadap Gaya Gempa dengan Metode Analisis Linier Riwayat Waktu dengan software Midas GEN (Studi Kasus: Hotel Sapadia Jl. Sisingamangaraja)

Abstract

In 2023, the Sapadia Hotel building project which has been stopped for 7- 8 years will be continued. So that the Sapadia Hotel building must be re-analyzed to check whether there are changes in the quality of concrete, structures, and others. Plus the Sapadia hotel building is designed using SNI 1726: 2012 earthquake regulations while the latest earthquake regulations are SNI 1726: 2019. In this study, the time history and spectra response analysis methods were used to check the performance results of the Sapadia Hotel building structure. To perform analysis and modeling of the Sapadia Hotel Building, the MIDAS GEN 2023 software is used. The maximum displacement value of the spectral response for the X (0.1046 m) and Y (0.0043 m) directions. Then from the time history earthquake maximum displacement values for the Kobe earthquake in the X direction (0.1125 m) and Y direction (0.0068 m); Imperial Valley in the X direction (0.1035 m) and Y direction (0.0558 m); Parkfield in the X direction (0.0899 m) and Y direction (0.0677 m); Northridge in the X direction (0.0761 m) and Y direction (0.0566 m); San Fernando in the X direction (0.0737 m) and Y direction (0.00514 m). Interstory Drift examination obtained maxiumum story drift ratio values for X direction in Spektra Response (0.0149), Imperial Valley (0.0158), Parkfield (0.0116), Northridge (0.0108) and San Fernando (0.0116). For the Y-direction, the spectral responses are (0.0054), Imperial Valley (0.0011), Parkfield (0.0097), Northridge (0.0086) and San Fernando (0.0083). Of the 6 earthquakes, the Kobe earthquake still does not meet the requirements of SNI 1726:2019 regulations because the story drift ratio at the Mezzanine floor exceeds the permissible story drift ratio threshold (0.0158 > 0.015).