Analisis Tampang Box Girder Prategang Pada Jembatan Kereta Api Cepat Indonesia

Abstract

The Jakarta-Bandung High-speed Railway development project is the construction of a fast train located in Halim (Jakarta) - Tegal Luar (Bandung). This project has a track length of 142,3 km, more than 80 km has an elevated structure, the rest are 13 tunnels and subgrades. In this project study, the reference for the conversion of Chinese standards to Indonesian National Standards had no been determined, so many interesting technical issues were found for study material in research. One of the research topics chosen in this final project is to calculate flexural and shear capacities of the Prestressed Box Girder. In connection with these differences in specifications, the appearance of the girder is evaluated based on SNI 2847 of 2019 Requirements for Structural Concrete for Buildings and Explanations. As well as for loading refers to SNI 1725 of 2016 Loading for Bridges, RSNI T 12 of 2004 Planning for Concrete Structures for Bridges, SNI 2833 of 2016 Planning of Bridges Against Earthquake Loads, and PM No. 7 of 2022 Implementation of High-speed Railway. The results obtained by evaluating refer to the Indonesian National Standard on 3 (three) variants of the same dimensions but with different thicknesses, namely for the mid-span area of 16,675 tons/m, while for the bearing wall area of 28,325 tons/m and 29,275 tons/m. The flexural capacities are 131335,412 kNm 149162,999 kNm, and 149975,051 kNm. The shear capacities are 3039493,158 kN/m, 3029369,854 kN/m, and 3028646,501 kN/m. With the result of loss of prestressed is 36,607%.