BBR VT CONA CMB provides strong solution

Band PT for external structural strengthening

The new Danube bridge, close to Traismauer, is at the heart of a new 6.6 km road link and features both external BBR VT CONA CMB band, as well as BBR VT CONA CMI internal post-tensioning.

The project consists of the foreland bridges south (330 m) and north (360 m) and the main bridge over the Danube with a length of 360 m. The latter consists of three spans – two 99.5 m side spans and a 156.2 m main span. This configuration ensures the required width of 150 m in the centre to preserve the shipping lane.

Our contract included the complete installation of the external post-tensioning, for which we applied the BBR VT CONA CMB system. This system allows the bands to be used continuously, in one piece, throughout the total length of the bridge – thus they have a single length of 353.7 m. For durability, the installation had to allow for adjustability and replacement of the bands – as a result, cover caps of the anchor heads are 2 m long.

The BBR VT CONA CMB band post-tensioning system with 01 to 16 strands is European approved – ETA-10/0065 – and the perfect ready-to-use PT solution.