Azis, Rivi Fathurachman (2024) Modifikasi Struktur Apartemen Menggunakan Sistem Flatslab Dengan Pelat Prategang. Undergraduate thesis, UPN VETERAN JATIM.
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Abstract
Pakuwon Residence Apartment is one of the high-rise buildings that supports vertical housing infrastructure in Bekasi City, West Java. This building uses a conventional structural system (plates, beams, and columns. The difference in height between floors is one indicator that the building is experiencing a soft story. The Pakuwon Residence apartment building has a floor height of 3.5 m. By modifying it using the flatslab system, the height per floor is only 2.8 m. By using the flatslab system, the height of the high-rise building will be reduced because the height of the free space on each floor can be maximized. The disadvantages of the flatslab system are the large punching shear force and shift, so reinforcement with drop panels, shearwalls, and prestressed slabs is needed. Drop panels (thickening of the slab around the column) will withstand the punching shear that occurs in the critical area between the slab and the column. Meanwhile, the shearwall withstands lateral forces that occur such as earthquake and wind loads. The use of prestressed slabs will reduce the shear that occurs due to not using beam elements with prestressed slabs with guaranteed quality while still considering the prestressing force loss factor. The analysis was carried out using the pushover method by means of dynamic analysis with an assistance program. The re-planning of this building is based on several regulations, namely "Structural concrete requirements for building structures and explanations (SNI 2847: 2019)", "Procedures for earthquake resistance planning for building and non-building structures (SNI 1726: 2019)", and "Minimum load for designing buildings and other structures (SNI 1727: 2020) '. Based on the analysis, the flatslab system can still be used for a 21-story apartment with floor slab dimensions of 300 mm and 250 mm for the roof slab. With the use of prestressed plates with tendons installed at a distance of 0.5 m in both the X and Y directions with a deflection of 94.2 mm <190.83 mm (permissible deflection). The droppanel dimensions are 1700 x 1700 mm with a thickness of 100 mm with reinforcement D22 - 150 in the X direction and D22 - 200 in the Y direction. The planned shearwall has various thicknesses, such as 350 mm and 400 mm, so that it can withstand earthquake forces of 58% in the X direction and 50% in the Y direction. In the pushover analysis, the maximum total deviation values in the X and Y directions were 0.0015 m and 0.0021 m <0.01, therefore the building is still included in the immediate occupancy (IO) and ductility of 2.94 (X direction) and 1.99 (Y direction). Keywords: Flatslab, Drop panel, Shearwall, Prestressed plate, Soft story, Pushover analysis, Shear pons
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||||
| Divisions: | Faculty of Engineering > Departement of Civil Engineering | ||||||||||||
| Depositing User: | Mahasiswa Rivi Azis | ||||||||||||
| Date Deposited: | 13 Dec 2024 10:37 | ||||||||||||
| Last Modified: | 13 Dec 2024 10:37 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/33376 |
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