Permana, Febrian Raditya (2026) PERENCANAAN STRUKTUR GROUND WATER TANK UNTUK PENAMBAHAN KAPASITAS KEBUTUHAN AIR WILAYAH SURABAYA UTARA (STUDI KASUS : PEMBANGUNAN RESERVOIR ТАHAР 2 А2 МВАH RATU KOTA SURABAYA). Undergraduate thesis, UPN "Veteran" Jawa Timur.
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Abstract
The increasing population and the development of public facilities in North Surabaya have led to a continuous rise in clean water demand, necessitating an increase in water storage capacity through the construction of a Ground Water Tank at the Phase 2 A2 Mbah Ratu Reservoir, Surabaya City. This study aims to design the reinforced concrete structure and foundation of a Ground Water Tank by increasing its storage capacity from 2.142 m³ to 2.940 m³, capable of resisting gravity loads, hydrostatic pressure, lateral earth pressure, uplift forces, and earthquake loads, while evaluating the structural failure control of the walls and base slab in accordance with the applicable Indonesian National Standards. Structural analysis was carried out using structural analysis software, while the foundation design was based on soil parameters obtained from the Standard Penetration Test (SPT). The results indicate that the tank walls have a thickness of 300 mm with 2D19-100 longitudinal reinforcement and 2D13-100 transverse reinforcement. The base slab has a thickness of 570 mm with D25-100 reinforcement in both the X and Y directions and 4D19-75 tie reinforcement. Structural failure assessment shows that the maximum principal stress of the walls is 2,133 MPa under the full-water condition and 2,674 MPa under the empty-water condition, while the base slab experiences maximum principal stresses of 1,539 MPa and 1,911 MPa, respectively. All maximum principal stress (Smax) values are lower than the concrete modulus of rupture (fr) of 3,67 MPa, indicating compliance with the structural safety requirements against potential failure. The results also demonstrate that the dimensions and reinforcement of the beams, columns, and roof slab comply with SNI 2847:2019. The foundation system consists of a 570 mm thick raft foundation combined with 54 spun piles of 400 mm diameter embedded to a depth of 23 m. The analysis indicates that the soil bearing capacity and the total settlement of 2,042 cm satisfy the allowable settlement limit of 17,92 cm. Therefore, the designed Ground Water Tank structure and foundation satisfy the required strength and safety criteria to support the increased clean water storage capacity in North Surabaya.
| 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: | Febrian Raditya Permana | ||||||||||||
| Date Deposited: | 24 Jul 2026 02:43 | ||||||||||||
| Last Modified: | 10 Sep 2026 07:50 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/45325 |
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