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All Journal Jurnal Penelitian Rumpun Ilmu Teknik
Mario M. L. Moningka
Politeknik Negeri Manado
Computer Science & IT Engineering

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Analisis Struktur Penambahan Lantai Bangunan Beton Bertulang Eksisting dengan Sistem Komposit Baja–Beton pada Rumah Sakit Kirana Manado Stery Rengku; Mario M. L. Moningka; Nixon Servius Mantiri
Jurnal Penelitian Rumpun Ilmu Teknik Vol. 5 No. 3 (2026): Jurnal Penelitian Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juprit.v5i3.7013

Abstract

Rising demand for inpatient space often pushes hospital operators to add a storey on top of a building that is already standing, even though its columns were sized for a smaller load. This study assesses whether a steel–concrete composite system is a viable choice for the third floor added to the existing reinforced concrete building of Kirana Hospital in Manado. A three-dimensional model was built in ETABS v22.7.0 following SNI 1727:2020, SNI 1726:2019 and SNI 1729:2020. Seismic input uses Manado site parameters of Sₛ = 1.0505 g, S₁ = 0.4689 g, site class SD and risk category IV, giving Sₔₛ = 0.7562 g and Seismic Design Category D. The added floor uses BJ 41 steel, and a second model with a reinforced concrete third floor was analysed for comparison. The highest capacity ratio reached 0.596 in column C9 and 0.707 in beam B36, and every bolted and welded connection passed, the beam–column joint being the most critical at 0.90. Replacing the concrete floor lowered the total dead load by 2,793.55 kN or 15.33%, but the reduction ranges from only 7.54% at joint 12 to 21.98% at joint 20, and the most heavily loaded joints gain the least.
Co-Authors Nixon Servius Mantiri Stery Rengku