PERENCANAAN ULANG STRUKTUR ATAS MENGGUNAKAN PLAT LANTAI SISTEM GRID PADA GEDUNG LABORATORIUM DAN PERKULIAHAN BERSAMA UPN “VETERAN” JAWA TIMUR

The construction of the UPN "Veteran" East Java Joint Lecture and Laboratory Building is an example of this grid beam structure planning. A lattice beam system was installed to replace the original beam system in this building. The x and y directions of the lattice beam plan design are assumed to have the same beam size and stiffness requirements. The dimensions of a 20/40 lattice beam with fc' = 30 MPa are considered for a 2 m by 2 m panel on a slab with a span of 8 m by 6 m. For slabs with a span of 5 x 6 meters, panels measuring 2.5 m x 2 m are proposed with lattice beam dimensions of 25/40 in the longitudinal direction and 20/40 in the transverse direction, with fc' = 30 MPa. Next, using a combination of dead load, live load and earthquake load, a static calculation of the portal structure is carried out according to the relevant SNI. Using the StaadPro application, the building structure is analyzed. The results show a total output deviation of 59.693 mm with a drift ratio to the main direction of 0.0014 < 0.0025. The superstructure of the building then complies with safety measures. The main beam is designed with a size of 400/700 mm. both 300/550 mm and 250/450 mm. The column is planned to measure 700 x 700 mm with a shear wall thickness of 200 mm.