PERENCANAAN ULANG STRUKTUR GEDUNG FAKULTAS ILMU KOMPUTER UNIVERSITAS BRAWIJAYA DENGAN BAJA KOMPOSIT MENGGUNAKAN SISTEM PENAHAN GEMPA BRACING (STUDI PERENCANAAN : STRUKTUR BAWAH)

The Faculty of Computer Science Building of Universitas Brawijaya is a lecture building that has a location on Jl. Veteran Malang, Ketawanggede, Lowokwaru District, Malang City, and has a building area of 466.56 m2. In accordance with its function, the Faculty of Computer Science Building functions as a place to support the learning process for students of Universitas Brawijaya, especially students of the Faculty of Computer Science. The building, which has a square shape along 21.6 m and a total of 7 floors with a height of 4.5 m for each floor, is re-planned with a composite steel structure and a bracing earthquake resisting system. To support the upper structure of the Faculty of Computer Science building, a pile foundation is planned. Based on analysis using ETABS software, the largest axial load occurs in column 2-B, which is 498.46 tons. In the planning of piles taken is a pile drill with a diameter of 0.8 m and 0.6 m, and for the determination of the foundation point adjusted to the data on the Drill Log which has 3 points namely BH-1, BH-2, and BH-3 resulting in a foundation depth of 12 m and 9 m. The planned pile cap has 2 types, including pile cap 1 which has dimensions of 2.70 m x 2.70 m x 0.80 m and pile cap 2 which has dimensions of 3.60 m x 3.60 x 0.80 m, while for longitudinal reinforcement in the x and y direction pile cap used D22 - 100 mm reinforcement, shrinkage reinforcement used is D16 - 150 mm, and shear reinforcement is used D10 - 100 mm. The largest decrease that occurred in this building was in column 2-B which amounted to 5.84.