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As a high seismic hazard country, Indonesia periodically updates its seismic and structural concrete codes. The current seismic and structural concrete codes of Indonesia are the SNI 1726-2012 and the SNI 2847-2013, respectively. Since every update usually demands higher requirement, existing buildings that were designed using older codes should be evaluated. This study investigates 9-storey hotel building in Balikpapan, Indonesia, which was designed using the PPTGIUG 1983 code and will be evaluated according to the current code. Non-linear direct integration time history analysis was conducted to analyse the building performance. The seismic load used was a spectrum consistent ground acceleration generated from El Centro 18 May 1940 North-South component in accordance to the current code. The result show that the existing building has good performance. The drift ratio of the building does not exceed 0.5% which is very satisfactory according to performance level set by FEMA 356. Maximum individual damage index in beam element was recorded as high as 0.0426 which is well below the serviceability limit state according to ACMC.

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Performance of an existing reinforced concrete building designed in accordance to older indonesian codes (pptgiug 1983 and sksni t-15-1991-03): case study for a hotel in balikpapan