Modifikasi Proyek Jembatan Pandansimo STA 0+800 - 1+475 Menggunakan Box Girder dengan Metode Konstruksi Balanced Cantilever

Rinanda, RP Muhammad Aunariq (2025) Modifikasi Proyek Jembatan Pandansimo STA 0+800 - 1+475 Menggunakan Box Girder dengan Metode Konstruksi Balanced Cantilever. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pembangunan Jembatan Pandansimo yang menghubungkan Jalan Lintas Selatan di Provinsi Daerah Istimewa Yogyakarta bertujuan untuk meningkatkan konektivitas antara Kabupaten Bantul dan Kabupaten Kulon Progo. Jembatan eksisting memiliki 28 pilar dengan panjang bentang bervariasi antara 17,5 meter hingga 25 meter. Banyaknya jumlah pilar dikhawatirkan mengganggu aliran Sungai Progo karena penampang sungai tidak diperbolehkan berkurang lebih dari 5%. Oleh karena itu, dilakukan modifikasi desain menggunakan struktur box girder dengan sistem balanced cantilever dan metode pengecoran cast in situ menggunakan formwork traveller. Analisis struktur dilakukan dengan menggunakan perangkat lunak SAP2000 untuk memodelkan struktur box girder dengan metode balanced cantilever. Perhitungan dan evaluasi dilakukan mengacu pada standar SNI 1725:2016, SNI 2833:2016, AASHTO LRFD BDS 2020, serta Pedoman Teknis Kementerian PUPR No. 02.P/BM/2022. Evaluasi teknis meliputi pengecekan tegangan tarik utama beton pada tahap konstruksi kantilever dan tahap layan, analisis penulangan, pengecekan lendutan, perhitungan gaya geser, serta kontrol kekuatan struktur terhadap torsi. Hasil perancangan menunjukkan bahwa kebutuhan tendon pada struktur atas adalah sebanyak 68 tendon, masing-masing terdiri dari 19 strand berdiameter 15,24 mm. Untuk tendon bentang menerus (tendon bawah), digunakan 16 tendon dengan spesifikasi yang sama. Gaya prategang diberikan sebesar 0,74 fpu pada saat stressing. Dimensi box girder, konfigurasi penempatan tendon, detail penulangan, serta aspek stabilitas dan kekuatan struktur telah memenuhi persyaratan teknis yang berlaku. Keseluruhan hasil disajikan dalam bentuk tabel dan gambar teknis sebagai acuan pelaksanaan konstruksi
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The construction of the Pandansimo Bridge connecting the Southern Cross Road in the Special Region of Yogyakarta Province aims to improve connectivity between Bantul Regency and Kulon Progo Regency. The existing bridge has 28 pillars with span lengths varying between 17.5 meters to 25 meters. The large number of pillars is feared to interfere with the flow of the Progo River because the wet cross-section of the river is not allowed to be reduced by more than 5%. Therefore, design modifications were made using a box girder structure with a balanced cantilever system and a cast in situ casting method using traveller formwork. Structural analysis was carried out using SAP2000 software to model the structure of the box girder using the balanced cantilever method. The calculation and evaluation were carried out referring to the SNI 1725:2016, SNI 2833:2016, AASHTO LRFD BDS 2020 standards, and the Technical Guidelines of the Ministry of PUPR No. 02.P/BM/2022. The technical evaluation includes checking the main tensile stress of concrete at the cantilever construction stage and service stage, repetition analysis, deflection check, shear force calculation, and control of the structure strength to torque. The design results show that the need for tendons in the upper structure is as many as 68 tendons, each consisting of 19 strands with a diameter of 15.24 mm. For the continuous span tendon (lower tendon), 16 tendons with the same specification are used. The prestressed force is given 0.74 fpu at the time of stress. The dimensions of the box girder, the configuration of the tendon placement, the repetition details, as well as the stability and strength aspects of the structure have met the applicable technical requirements. All results are presented in the form of tables and technical drawings as a reference for the implementation of construction.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Jembatan, box girder, beton prategang, balanced cantilever Bridge, box girder, prestressed concrete, balanced cantilever
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA658 Structural design 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 > 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:	R P Muhammad Aunariq Rinanda
Date Deposited:	04 Aug 2025 02:21
Last Modified:	04 Aug 2025 02:21
URI:	http://repository.its.ac.id/id/eprint/126026

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