Modifikasi Desain Struktur Jembatan Jurug Menggunakan Box Girder Prestressed Concrete Segmental Cast In Situ Metode Konstruksi Balanced Cantilever

Rahman, Rayhan Aufa (2025) Modifikasi Desain Struktur Jembatan Jurug Menggunakan Box Girder Prestressed Concrete Segmental Cast In Situ Metode Konstruksi Balanced Cantilever. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Jembatan Jurug merupakan jembatan penghubung Kota Solo dan Kabupaten Karanganyar. Jembatan tersebut memiliki panjang bentang total 155,1 m dan lebar 11,9 m. Desain awal jembatan menggunakan struktur Callender Hamilton (CH) dengan didukung menggunakan 3 pilar dan 2 abutment. Saat ini, usia Jembatan Jurug telah melampaui umur rencananya sehingga diperlukan perbaikan struktur. Oleh karena itu, jembatan perlu dibongkar dan dibangun kembali. Dalam tugas akhir ini, penulis akan memodifikasi desain untuk Jembatan Jurug-B dengan struktur beton prategang box girder. Tahapan modifikasi desain struktur dimulai dengan preliminary design bangunan atas, pembebanan struktur bangunan atas, dan kontrol struktur meliputi kontrol tegangan tahap kantilever dan bentang menerus, kontrol geser, kontrol torsi, kontrol tegangan tarik utama dan tekan utama, kontrol lendutan, kontrol ragam getar dan partisipasi massa, serta penulangan lentur. Apabila didapatkan hasil kontrol yang sesuai, dilanjutkan dengan preliminary design bangunan bawah, pembebanan struktur bangunan bawah, dan kontrol struktur meliputi kontrol stabilitas guling dan geser abutment, kontrol geser ponds pilecap, kontrol deformasi pondasi abutment dan pilar, kontrol penurunan pondasi abutment dan pilar, serta penulangan pada struktur bawah. Selanjutnya, merencanakan metode pelaksanaan dan penggambaran teknik secara keseluruhan. Perencanaan struktur mengikuti standar nasional dan internasional seperti SNI 1725:2016, SNI 2833:2016, dan AASHTO LRFD Bridge Design Specification 9th Edition. Hasil modifikasi Jembatan Jurug didapatkan lebar 11,8 meter, panjang 169 meter dan tinggi box girder bervariasi antara 5 meter hingga 2,025 meter, sehingga didapatkan jumlah tendon atas 44 buah dan tendon bawah 30 buah dengan jumlah strand tiap tendon 19 buah berdiameter 15,24 mm. Hasil kontrol struktur bangunan atas dan bangunan bawah didapatkan memenuhi persyaratan yang diizinkan dengan mengikuti peraturan yang berlaku. Metode pelaksanaan menggunakan metode konstruksi balanced cantilever dimana pada saat pengerjaan pekerjaan jembatan harus seimbang dengan bantuan alat form traveller. Lalu pendetailan gambar teknik.
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The Jurug Bridge connects the city of Solo and Karanganyar Regency. The bridge has a total span length of 155.1 m and a width of 11.9 m. The initial design of the bridge used a Callender Hamilton (CH) structure supported by three pillars and two abutments. Currently, the Jurug Bridge has exceeded its planned lifespan, necessitating structural repairs. Therefore, the bridge needs to be demolished and rebuilt. In this final project, the author will modify the design for the Jurug-B Bridge using a prestressed concrete box girder structure. This design aims to reduce the number of pillars, improve river flow, and provide a stronger and more durable construction.Structural design modifications begin with the collection of soil data, existing drawings, and supporting literature studies. The structural design modification process begins with the preliminary design of the upper structure, structural loading of the upper structure, and structural control, including cantilever and continuous span stress control, shear control, torsion control, main tensile and compressive stress control, deflection control, vibration mode and mass participation control, and flexural reinforcement. If the control results are satisfactory, the process continues with the preliminary design of the lower structure, structural loading of the lower structure, and structural control including control of abutment overturning and shear stability, shear control of pile cap ponds, deformation control of abutment and column foundations, settlement control of abutment and column foundations, and reinforcement of the lower structure. Next, the construction methods and technical drawings are planned in their entirety. Structural design follows national and international standards such as SNI 1725:2016, SNI 2833:2016, and AASHTO LRFD Bridge Design Specification 9th Edition. The modified Jurug Bridge has a width of 11.8 metres, a length of 169 metres, and a box girder height varying between 5 metres and 2.025 metres, resulting in 44 upper tendons and 14 lower tendons, each with 19 strands with a diameter of 15.24 mm. The structural control results for the upper and lower structures meet the permitted requirements in accordance with applicable regulations. The construction method used is the balanced cantilever method, where during bridge construction, balance must be maintained with the assistance of a form traveller. Then, the technical drawings are detailed.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Balanced Cantilever, Box Girder, Modifikasi, Prategang, Tendon,Balanced Cantilever, Box Girder, Modification, Prestressed, Tendon
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA658 Structural design T Technology > TE Highway engineering. Roads and pavements > TE7 TG300 Bridges--Design and construction. T Technology > TG Bridge engineering > TG362 Box girder bridges--Design and construction.
Divisions:	Faculty of Vocational > Civil Infrastructure Engineering (D4)
Depositing User:	Rayhan Aufa Rahman
Date Deposited:	04 Aug 2025 00:45
Last Modified:	04 Aug 2025 00:46
URI:	http://repository.its.ac.id/id/eprint/125687

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