Use of DYWIDAG Technology for bridge construction in Tel Aviv, Israel

Construction of the Roka and Ayalon railway bridges in Tel Aviv, Israel

The construction of a new railway line in Israel included the erection of several new bridges. The superstructures of the Roka and Ayalon bridge were designed as continuous post-tensioned hollow box girders with constant depth. The deck widths are 5.2 and 5.6 m, the typical span lengths are 25 and 33 m respectively.
The Roka bridge has a length of 80 m and the length of the Ayalon bridge is 154 m.
The bridges were cast in several segments in lengths between 11 and 14 m and brought into final position using the incremental launching method.
For post-tensioning of he bridge decks the DYWIDAG MA Strand Post-Tensioning System with R type couplers with 9 x 15.7 mm and 12 x 15.7 mm tendons was chosen.