PERENCANAAN ULANG STRUKTUR ATAS MENGGUNAKAN BAJA KOMPOSIT DENGAN PENAHAN GEMPA SISTEM RANGKA PEMIKUL MOMEN KHUSUS (SRPMK) DAN BRACING BERDASARKAN SNI 1729:2015

Malang Islamic University Hospital has 9 floors which were originally planned using reinforced concrete structures on floors 1 to 9, plus a roof floor. In this plan, another alternative is given using composite steel on floor slabs, sub-beams and main beams and columns. Composite steel structures will produce a profile/element design that is stronger and stiffer than non-composite structures. The loading plan is based on SNI 1727:2013 with SRPMK earthquake resistance and the steel structure design plan is based on SNI 1729:2015 using the LRFD method. From the results of the analysis, it was found that the roof and floor plates used a floor deck with a thickness of 120 mm and main reinforcement 18-150 mm and shrinkage reinforcement 12-250 mm, roof beams using a WF profile of 350 x 175 x 7 x 11 and floor beams using a WF profile. 350 x 175 x 7 x 11, the main beam across the roof using the WF 450 x 200 x 9 x 14 profile and the main beam across the floor using the WF 600 x 200 x 11 x 17 profile, the main beam extending the roof using the WF 450 x 200 x 9 profile x 14 and the main beam extending to the floor using a WF 600 x 200 x 11 x 17 profile, the column using a WF 400 x 400 x 13 x 21 profile. The maximum deflection of the sub-beams is 14.11 mm, the transverse main beam is deflected by 14.39 mm , and the main beam lengthwise flexes by 14.39 mm which still meets the requirements for maximum deflection of L/360