ANALISIS DISPLACEMENT GEDUNG BETON BERTULANG MIDDLE-RISE TERHADAP BEBAN GEMPA SESUAI BUKU PETA GEMPA INDONESIA 2017 DENGAN ANALISIS TIME HISTORY
GUNAIDI, MUHAMMAD IKHSAN
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Indonesia is a country that is vulnerable to disasters, especially the earthquake disaster. Earthquakes in Indonesia have become a serious problem since many deaths continue to increase every year. Buildings in Indonesia have different altitude classifications, ranging from low, middle and high levels. Therefore, this study was conducted to analyze the displacement in middle-level building structures to earthquake loads in accordance with the 2017 Indonesian earthquake map book with response history analysis. Linear analysis is the research method used in this thesis. This study uses the SAP 2000 version 21 program as a review structure model. The mid-level building model in this study has 5 floors with a height of 16 meters, 4 meters on the ground floor and 3 meters on floors 2-5. The structure uses reinforced concrete with f'c concrete quality = 30 MPa, and reinforced steel quality = 240 MPa for plain reinforcement <12 mm in diameter and 290 MPa for screw reinforcement with diameter ≥ 12 mm. Models given earthquake loads that have nine different time histories for three site classes (SC, SD, and SE) are adjusted to the response spectrum processed from earthquake hazard maps to 99 major cities in Indonesia. Displacement on each floor is compared to the permit limit which is 2 percent high. From the results of the study, 8 of the 99 major cities experienced displacement in the review building structure exceeded the permit limit, it can be concluded that there were 8 major cities in Indonesia that entered the unsafe percentage of the evaluation of this study. The smallest unsafe percentage is in the city of Gunung Sitoli that is equal to 2,926%, while the largest unsafe percentage is in the city of Padang Sidempuan of 168,558%.