Hodapp GmbH & Co. KG

Hodapp GmbH & Co. KG in Achern (Germany) is a renowned manufacturer of custom-made steel and stainless steel doors, specialising among other things in tunnel construction requirements such as pressure...

Pressure differences between tunnel areas or technical equipment rooms can make it considerably more difficult to open escape and service doors, especially when the pressure difference is high....

Since the Scheibengipfel Tunnel with a length of 1.9 km was opened for traffic on October 27, 2017, the city centre of Reutlingen (Germany) has had to cope with as many as 20 000 fewer vehicles. This...

Railway tunnels pose a special challenge for door systems: dynamic alternating pressure loads of up to 10 kPa at several million load changes and static pressures of up to 30 kPA are requirements that...