YOGYAKARTA PUBLIC LIBRARY BUILDING DESIGN PRACTICE

Karolan, Rainer and Hutabarat, Maleakhi H A (2023) YOGYAKARTA PUBLIC LIBRARY BUILDING DESIGN PRACTICE. S1 thesis, Universitas Atma Jaya Yogyakarta.

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Abstract

The final project report prepared by this author aims to design the upper structure of the building, the lower structure of the building and time cost management of the Public Library Building with reinforced concrete that can withstand gravity loads and earthquake loads. The design of this 3-storey Public Library uses the Special Moment Bearing Frame System (SPRMK), with building risk category II and seismic design D. The structural elements designed in this report start from slabs, beams, columns, stairs and foundations, plus time cost management. . The concrete used has fc' = 35 Mpa, and steel reinforcement BJ 37 which has fy = 240 Mpa. The building design follows the Minimum Loading Reference for Buildings and Other Structures in SNI 1727:2020, Building Design Procedures for Concrete Structures in SNI 2847:2019, Specifications for Structural Steel Buildings in SNI 1729:2020 and Procedure for Planning Steel Structure for Buildings in SNI 03-1729-2002. Auxiliary software used in the design of building structures using ETABS, AutoCAD and Microsoft Project. The design process begins with calculating the gravity load, starting from Dead Load which means the weight of the structure itself (Slabs, Columns, Beams, Roofs, Stairs) based on the material and its dimensions. In addition, there are additional dead loads that come from non-structural components such as architectural and MEP which are connected in the building structure. Examples of additional dead loads are tiled floors, wiring, plumbing, windows, doors, door frames and window frames. And lastly, the live load that comes from humans or goods that can move places, which according to SNI 1727:2013 the live load is 4.79 kN/m2. After calculating the gravity load, proceed with the calculation of the earthquake load. Then proceed with the calculation of the combined load, where according to SNI 1726:2019, the combined load is calculated by the formula 1.2DL + 1.6LL, and specifically for the roof there is an additional wind load of 0.5WL. The thickness of the plate used from plate 1 to plate 8 is 120 mm. Plate 2 is a two-way plate, while the other plate is a one-way plate. The beams used have dimensions of 6000 x 500 x 250 mm3. For support and span, 300 x 150 mm and 500 x 500 for sloof beams. The upper and lower supports use 4D-22, the middle support reinforcement uses 2D-22. Top and bottom field reinforcement using 3D-22, and midfield reinforcement using 2D�22. For support stirrups reinforcement using 2D10-40 and field stirrups reinforcement using 2D10-80. Dimensions Column used is 500 x 500 mm2, with 12D-22 longitudinal reinforcement, transverse support reinforcement on the weak axis 6D10-120 and on the strong axis 6D10-120. Transverse field reinforcement on the weak axis 2D10-130 and on the strong axis 2D10-130. In stairs, the main reinforcement used is D13-250 and the shrinkage reinforcement is used D8-250. The foundation used is bore pile with diameter of 40 cm using 10D22-200 and 22D22-200 reinforcement.

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