Oktavian, Teja (2022) Modifikasi Perencanaan Struktur Gedung Apartemen Grand Dharmahusada Lagoon Surabaya Menggunakan Struktur Baja Dengan Sistem Buckling Restrained Braced Frames. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Meningkatnya rata-rata kejadian gempa bumi di Indonesia dari tahun ke tahun memberikan dampak dan kekhawatiran akan risiko faktor keamanan bangunan. Sementara itu, bangunan-bangunan krusial seperti rumah sakit, stasiun pemadam kebakaran, hingga gedung sekolah atau kuliah harus tetap berfungsi bahkan setelah gempa besar melanda. Untuk itu diperlukan sebuah metode perencanaan yang tepat agar bangunan tahan gempa memiliki kinerja yang baik dibawah guncangan gempa dan life safety based, namun tetap efisien dalam waktu pengerjaan agar dapat menekan biaya pembangunan. Struktur baja komposit dengan sistem Buckling Restrained Braced Frames (BRBF) adalah salah satu alternatif yang tepat untuk menjawab permasalahan tersebut. Diantara keunggulan menggunakan struktur baja adalah sifat materialnya yang cukup kaku dan sangat daktail sehingga mampu mempertahankan kekakuan dan kekuatan pada struktur gedung untuk tetap berdiri meski di ambang keruntuhan. Buckling Restrained Braced Frames (BRBF) merupakan inovasi sistem struktur untuk mengatasi masalah tekuk yang dialami bresing yang mengalami gaya tekan pada sistem Concentrically Braced Frames (CBF) agar bresing tetap dapat dimanfaatkan secara optimal. Penerapan Buckling Restrained Braced Frames (BRBF) pada sistem struktur memungkinkan kapasitas disipasi energi yang tinggi dan perilaku yang daktail sehingga struktur mampu mengalami deformasi yang besar dan menyerap lebih banyak energi serta memiliki kinerja yang lebih baik di bawah gaya cyclical. Dalam tugas akhir ini, gedung yang awalnya menggunakan struktur beton bertulang dan terdiri dari 41 lantai serta 3 lantai basement ini akan dimodifikasi menggunakan struktur baja dengan sistem BRBF dan disesuaikan jumlah lantainya menjadi 27 lantai dan 1 lantai basement. Konfigurasi BRBF yang digunakan adalah Two-Story-X Brace. Perencanaan pada tugas akhir ini mengacu pada persyaratan keamanan struktur berdasarkan SNI 1729-2020, ANSI/AISC 341-10, SNI 1726-2019, SNI 1727-2020, dan SNI 2847-2019. Dari analisis dan perhitungan yang telah dilakukan didapatkan hasil perencanaan tebal pelat lantai 10 cm dengan material beton mutu f’c 30 MPa. Dimensi balok induk WF yaitu 600x300x12x17 dan 500x300x11x18. Dimensi kolom CFT (Concrete Filled Tube) yaitu 700x700x25, 600x600x22, dan 500x500x19. Struktur diperkaku dengan bresing BRB (Buckling Restrained Brace) cross-section 150x15 dengan casing HSS 250x250x16. Pada lantai Ground Floor digunakan material beton f’c 30 MPa dengan kolom 1100x1100, balok induk 450x650, balok anak 400x600, dan pelat lantai setebal 120 mm. Dinding basement dan pelat basement memiliki ketebalan 250 mm. Dimensi sloof digunakan 450x650. Pondasi direncanakan dengan spun pile D80 pada kedalaman 27,5 m.
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The increasing incidence of earthquakes in Indonesia from year to year has an impact and concerns about the risk of building safety. Meanwhile, crucial buildings such as hospitals, fire stations, and school or college buildings must still work even after a major earthquake hits. Therefore, an appropriate planning method is needed so that earthquake-resistant buildings have good performance under earthquake shocks and life safety based, but are still efficient in processing time in order to reduce construction costs. Composite steel structure with Buckling Restrained Braced Frames (BRBF) system is one of the right alternatives to answer these problems. The advantage of using a steel structure is that the material properties are quite rigid and very rigid so that it is able to maintain rigidity and strength in the building structure to keep standing even though it is on the verge of collapse. Buckling Restrained Braced Frames (BRBF) is a structural system innovation to overcome bending problems in bracings that experience compressive force in the Concentrically Braced Frames (CBF) system so that bresing can still be utilized optimally. The application of Buckling Restrained Braced Frames (BRBF) to structural systems allows for high energy dissipation capacity and detailed behavior so that the structure is able to undergo large deformations and absorb more energy and have better performance under cyclical loads. In this final project, the building, which originally used a reinforced concrete structure and consisted of 41 storey and 3 basement storey, will be modified using a steel structure with a BRBF system and adjusted the number of floors to 27 storey and 1 basement story. The BRBF configuration used is a Two-Story-X Brace. The planning in this final project refers to the structural planning requirements based on SNI 1729-2020, ANSI / AISC 341-10, SNI 1726- 2019, SNI 1727-2020, and SNI 2847-2019. From the analysis and calculations that have been carried out, the planning results of the slab thickness is 10 cm with quality of concrete material f’c 30 MPa were obtained. The dimensions of the main beam are WF 600x300x12x17 and WF 500x300x11x18. CFT (Concrete Filled Tube) column dimensions are 700x700x25, 600x600x22, and 500x500x19. The structure is braced with 150x15 cross-section BRB (Buckling Restrained Brace) with 250x250x16 HSS casing. On the Ground Floor story, f’c 30 MPa concrete material is used with columns 1100x1100, main beams 450x650, secondary beams 400x600, and slab 120 mm thick. Basement walls and basement slabs have a thickness of 250 mm. The dimensions of the sloof are 450x650. The foundation is planned with a D80 spun pile at a depth of 27.5 m.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Gempa, Struktur Baja, Daktilitas, Buckling Restrained Braced Frames., Earthquake, Steel Structure, Ductility, Buckling Restrained Braced Frames. |
| Subjects: | T Technology > TH Building construction > TH1095 Earthquakes and building |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Civil Engineering > 22201-(S1) Undergraduate Theses |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 13 Jan 2026 06:50 |
| Last Modified: | 13 Jan 2026 06:50 |
| URI: | http://repository.its.ac.id/id/eprint/129563 |
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