The Sambas Bridge features a special middle span formed by an Arch Steel Bridge. Typically, such an arch span would be constructed using a full shoring method. However, due to the river traffic, employing the full shoring method is not feasible.
To overcome this challenge, the Engineer, PT Pratama Daya Cahya Manunggal’s team has devised an innovative solution: the installation of only a few main shoring, supplemented by the use of temporary telescopic struts. This telescopic strut method, being utilized for the first time in Indonesia, marks a significant advancement in construction techniques within the country.
The telescopic strut is basically a steel support that has capabilities to extend and retract in a controlled manner. As the arch closure segment was installed, it was necessary to have the ability to alter the position of the previously installed segments. To achieve this adjustability, the arch support strut was designed to be telescopic.
Our involvement in the Sambas Bridge project is substantial. We are responsible for the design of the telescopic strut, the supply and installation of the jacking system, the supply of disc bearings, and overseeing the erection works for the approach bridge.
This innovative approach not only addresses the logistical challenges posed by the river traffic but also sets a precedent for future bridge construction projects in Indonesia.