PERENCANAAN ULANG STRUKTUR BETON BERTULANG UNTUK BANGUNAN TINGGI MENGGUNAKAN SISTEM RANGKA PEMIKUL MOMEN MENENGAH (Studi Kasus Gedung Kantor Pusat Bank Kalsel)

The head office building of Bank Kalimantan Selatan is an 8-storey reinforced concrete construction that uses Dual System construction as its moment bearing system, the system is in the form of a moment bearing frame system and a sliding wall (shear wall). However, the placement of the sliding wall on the structural plan shows that the moment of inertia of the strong axis of the sliding wall is in the direction of the strong axis of the building portal, this causes the role of the sliding wall to be not optimal and wasteful. Due to the suboptimal use of the system, the author redesigned the building structure of the Bank Kalsel Head Office with a reinforced concrete structure using the Medium Moment Bearing Frame System (SRPMM).
Replanning of the building structure of the Bank Kalsel Head Office building will be planned with the latest reference standards, namely SNI 2847-2019 which regulates the planning standards for reinforced concrete structures, SNI 1726-2019 regulations regulating the planning of earthquake-resistant structures and SNI 1727-2020 which regulates the minimum design load on building structures.
From the results of structural statics analysis using SRPMM, the thickness of the floor and roof slab is 120 mm, the dimensions of the child beams extend 30/50 cm, the dimensions of the transverse child beams 20/35 cm, the dimensions of the longitudinal parent beams 35/60 cm, the dimensions of the transverse parent beams 35/60 cm and the dimensions of the columns using 60/60 cm. Then the maximum inter-floor deviation was obtained at 16,303 mm on the second floor and still met the requirements of 0.02h (h = 4200 mm) or 84 mm, then with these results the building was concluded to be stable.