Liyanto, Wilda April (2019) Modifikasi Desain Struktur Jembatan Gedangan Kabupaten Trenggalek dengan Sistem Gelagar Beton Pratekan Bentang 40 Meter dan Voided Slab Bentang 14 Meter. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tugas akhir ini berisikan perhitungan dan perencanaan jembatan Gedangan di Trenggalek dengan struktur precast concrete I girder panjang 40 meter dan voided slab panjang 14 meter. Dasar perencanaan mengacu pada RSNI T-12-2004, SNI 1725-2016, SNI 2833-2016, PCI Design Handbook 8th, Desain Struktur Beton Prategang karangan T.Y.Lin Ned – H. Burn, Beton Prategang karangan Edward G. Nawy, dan Teknik Pondasi karangan Ir. Suyono, Kazuto Nakazawa dan Bridge Management System (BMS 1992). Preliminary design dilakukan untuk menentukan dimensi gelagar yang ada di pasaran. Analisa pembebanan dilakukan untuk kontrol terhadap tegangan akhir, kontrol geser dan torsi, kontrol retak, kontrol lendutan dan momen batas. Perencanaan struktur menghasilkan dimensi gelagar, voided slab, ukuran tendon, jumlah tendon. Kemudian pada tahap akhir perencanaan struktur atas dilakukan perhitungan perletakan. Dan dilanjutkan pada perencanaan bangunan bawah. Dari hasil analisa diperoleh jumlah tendon I girder sebanyak 21 strand pada 3 tendon dan 22 strand pada 1 tendon lainnya. Kehilangan prategang total sebesar 22,21% sedangkan lendutan saat layan sebesar 0,75 cm kebawah. Perencanaan kebutuhan strand voided slab bedasarkan momen total yang diterima, didapatkan sebanyak 27 strand dengan kehilangan prategang total sebesar 16,29% dan lendutan saat layan sebesar 0,62 cm kebawah. Jumlah tiang pancang pada abutment 1 sebanyak 14 buah dan 12 buah untuk abutment 2 dengan diameter masing-masing 60 cm, pilar membutuhkan 27 tiang pancang diameter 70 cm, dan semua tiang pancang memiliki kedalaman 22,5 m. Kebutuhan elastomer I girder berukuran 500 x 300 dengan tebal total 39,6 mm. Sedangkan pada Voided slab berukuran 300 x 150 dengan tebal 24,4 mm.
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This final project contains the calculation and design of the Gedangan bridge in Trenggalek with the precast concrete structure of a 40-meter long girder and a 14 meter long voided slab. The basis for design is the T-12-2004 RSNI, SNI 1725-2016, SNI 2833-2016, PCI 8th Handbook Design, Pre-stressed concrete structure design by TYLin Ned-H. Burn's, Pre-stressed Concrete by Edward G. Nawy, and Foundation Technique written by Ir. Suyono, Kazuto Nakazawa, and Bridge Management System (BMS 1992). Preliminary design is done to determine the dimensions of the girder in the market. Load analysis is carried out to control the final stress, sliding control and torque, crack control, deflection control and limit moment. The planning structure produces girder dimensions, voided slabs, tendon size, number of tendons. Then at the final stage of planning, the upper structure is carried out. And continued on the bottom building planning.
From the analysis results, there were 21 strand tendons I girder in 3 tendons and 22 strands in 1 other tendon. Total prestressing loss is 22.21%, while deflection at service is 0.75 cm down. Design the need for a voided slab strand based on the total moment received, obtained as many as 27 strands with a total pre-stressed loss of 16.29% and deflection at the service of 0.62 cm down. The number of piles in abutment 1 was 14 pieces and 12 for abutment 2 with a diameter of 60 cm each, pillars needed 27 piles of diameter 70 cm, and all piles had a depth of 22.5 m. The need for 500 x 300 I girder elastomers with a total thickness of 39.6 mm. While the Voided slab is 300 x 150 with a thickness of 24.4 mm.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Abutment, Elastomer, Jembatan Gedangan, Precast Concrete I Girder, Pilar, Pondasi Tiang Pancang, Voided Slab |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA681 Concrete construction T Technology > TA Engineering (General). Civil engineering (General) > TA683 Precast concrete construction. Prestressed concrete construction. T Technology > TG Bridge engineering |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22401-(D3) Diploma 3 |
| Depositing User: | Liyanto Wilda April |
| Date Deposited: | 20 Sep 2024 08:56 |
| Last Modified: | 20 Sep 2024 08:56 |
| URI: | http://repository.its.ac.id/id/eprint/68767 |
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