PERENCANAAN ULANG STRUKTUR BETON BERTULANG PADA BANGUNAN ATAS PROYEK HOTEL PLATINUM SURABAYA DENGAN MENGGUNAKAN METODE KOMBINASI SISTEM RANGKA PEMIKUL MOMEN KHUSUS DAN SHEARWALL BERDASARKAN SNI 2847:2019

Platinum Surabaya Hotel is located on Jl Tunjungan No 21, Surabaya, East Java. This building has 19 floors with a basement with a total height of 71.3 m. This building has an irregular shape. In planning this building, a dual system earthquake barrier is used, namely the Special Moment Resisting Frame System (SRPMK) and the Shear Wall. In the planning of this building, there are 4 shear walls with BE installed on the 5 lower floors to maximize the ability of the structure which is included in the non-regular category to withstand the forces that occur due to the earthquake. This structural planning uses spectrum response analysis which refers to current regulations, namely SNI 2847-2019 concerning structural concrete requirements, SNI 1726-2019 concerning procedures for earthquake resistance planning, and SNI 1727-2020 concerning minimum design loads and related criteria for buildings. In the calculation process, the staadpro and Excel applications are used. The results show that the maximum inter-floor deviation in the x and y directions is 29.145 mm and 62.585 mm respectively. The safe limit for deviation between floors is 91.25 mm. As for the calculation of the main structural elements, it was found that the dimensions of the plate were 12 cm thick and two-way reinforcement, the dimensions of the main main beam were 400/700 mm, and the dimensions of the first child beam (BA1) were 200/400 mm, the dimensions of the second child beam (BA2) were 200/350 and dimensions of beam 3 (BA3) 250/450. The dimensions of the main column are 600/600 mm. The thickness of the shear wall is 30 cm.