Corridor 13 in Jakarta: DYWIDAG Products for a new Viaduct in the Seskoal Section
Corridor 13 is a new, 9.3km long, elevated roadway for buses in Jakarta, Indonesia, that leads from Ciledug to Jalan Tendean. A 1,400m long viaduct is being erected in the Seskoal section, one of 8 sections of the new busway. The viaduct had to be built in a highly frequented area while traffic was running in limited space both day and night.
In order to comply with the limited schedule and to reduce traffic obstruction to a minimum, the decision was made to build the segmental box girder bridge using the span by span method with an overhead launching gantry.
The individual segments were glued together with epoxy resin and then connected using short, temporary bar tendons. The permanent prestressing forces were applied to the structure via external post-tensioning tendons. Despite the fact that work was only possible at night, the team of DSI licensees achieved a cycle time of 4-6 days per span.
With the support of the DSI network, PT Delta Systech Indonesia actively accompanied the project from the design to the construction stages and suggested an innovative and efficient solution. Furthermore, PT Delta Systech Indonesia supplied and installed internal and external DYWIDAG Post-Tensioning Tendons. A Joint Venture consisting of PT Delta Systech Indonesia and DYWITECH Co. Ltd., Taiwan was responsible for operating the overhead launching gantry and provided engineering services.
Approx. 600 precast box girder segments were installed in total. The box girder and the pier heads were strengthened by internal and external DYWIDAG Strand Tendons with Type MA6812, MA6815 and MA6819 Anchorages using 360t of Type 0.6" post-tensioning strand. Short 36mm Ø DYWIDAG Bar Tendons were also used for temporary stressing.