Kinerja Portal Struktur Gedung Tahan Gempa dengan Sistem Ganda Menggunakan Metode Pushover Analysis

Buildings damages due to earthquakes generally happen because designs of the buildings do not consider earthquake resistance aspects and fulfil technical standards resistant buildings. The structure designed in this work was a seven-storey office building, with symmetrical design plan. earthquake-resisting system used dual special moment resisting frame (SMRF) shear wall for reinforced concrete. materials were concrete compressive strength f 'c = 30 MPa, Plain Steel Bars Grade 24 (fy 235 MPa), Deformed 40 390 MPa). calculation structural elements results gave: size main beams x 60 cm2, reinforcement varying from 4D22 12D22 support area 3D22 5D22 midspan area; secondary 25 2D22 both columns 95 20D25 28D25; cm thick walls 2D22-175 mm (in x-axis) 2D22-125 y-axis); 12 slabs Ø12-200 . For tie 55 had area. Pushover analysis maximum total drift 0,00425 which means performance level is Immediate Occupancy