Abstract
<em><span>The Semarang-Solo Toll Road Project for the Salatiga-Kartasura Section is one part of the Trans Java toll road development project, one of the jobs in the form of an erection girder with the method used, namely the Crane and Launcher methods. The purpose of this study is to compare the completion time between Crane and Launcher Methods with field studies and analysis. Stages of research include literature studies, primary data collection in the form of variable time of completion and secondary data then analyzed by comparing the completion time of the second method of erection girder on girder with a span of 20.8 meters and 40.8 meters. The results of the comparison of completion time were obtained on a 20.8 meter span erection girder seen from the shortest time Crane Method was more efficient 61.44% than the Launcher Method, the longest time Crane Method was more efficient 32.13% of the Launcher Method, and Method average time Crane is more efficient 52.15% than the Launcher Method. Then on the span erection girder 40.8 m seen from the shortest time Crane Method is more efficient 61.48% than the Launcher Method, the longest time Crane Method is more efficient 29.82% than the Launcher Method, and the average time of the Crane Method is more efficient 41, 81% of the Launcher Method.</span></em>
Highlights
PENDAHULUAN Semakin tingginya pertumbuhan penduduk di Indonesia harus diimbangi dengan sarana transportasi yang memadai, salah satu upaya untuk memenuhi kebutuhan transportasi darat yaitu dengan pembangunan jalan Tol SemarangSolo Ruas Salatiga-Kartasura STA 40+409 s.d 71+875 yang merupakan salah satu bagian dari proyek
Stages of research include literature studies, primary data collection in the form of variable time of completion and secondary data analyzed by comparing the completion time of the second method of erection girder on girder with a span of 20.8 meters and 40.8 meters
The results of the comparison of completion time were obtained on a 20.8 meter span erection girder seen from the shortest time Crane Method was more efficient 61.44% than the Launcher Method, the longest time Crane Method was more efficient 32.13% of the Launcher Method, and Method average time Crane is more efficient 52.15% than the Launcher Method
Summary
Analisa Data Analisa dilakukan dengan mencari waktu terpendek, waktu terpanjang, dan waktu rata-rata erection girder dari masing-masing metode. Dalam metode erection girder dengan 1 Crane ini, Crane dapat mengambil secara langsung girder dari stockyard untuk dierection, dengan catatan lokasi stockyard tidak lebih dari (>) 50 meter dari tepi abutment. Dalam penelitian ini peneliti mengamati pelaksanaan erection girder pada bentang P3–A2 yang memiliki bentang 20,8 meter dengan berat girder 22,94 ton. Lokasi stockyard girder bentang P3-A2 berada ± 30 meter dari tepi abutment, sehingga memungkinkan Crane untuk mengambil girder langsung dari stockyard menuju area erection girder dan langsung melakukan erection tanpa adanya mobilisasi dengan Truck Bogie. Sebelum penerapan metode Launcher, pada bentang A1-P1 dengan panjang 20,6 meter dan berat 21,9 ton sudah dierection menggunakan metode erection girder dengan 1 Crane. Situasi tampak samping dan tampak atas dalam pelaksanaan erection girder Jembatan Sungai Putih dapat dilihat pada Gambar 4 dan 5 di bawah.
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