Main river valley bridge
The Calenberg Cisilent® noise protection system for road bridges has been installed on the bridge (A73) across the Main river valley independently of the viaduct structure. Cisilent® elements on the wing walls and Cisilent® sheets beneath the joint gap form an enclosed space in which secondary airborne noise emitted by the support for the viaduct structure is systematically reflected, absorbed and insulated.
Even pipe crossings, where the space above is normally too small, are no obstacle. The flexible materials can be moulded to any structure and resist the weather conditions and chemical influence from dripping water without any loss of effectiveness in the long term.
For the maintenance of the viaduct structure, individual sheets can easily be detached on one side. Even a single person can manage the subsequent reinstallation thanks to the mass per unit area being only approx. 6 kg/m².
Calenberg Ingenieure GmbHAm Knübel 2-4
+49 5153 9400-0
+49 5153 9400-49