Overhead installation on the Glass Rock on the Loreley
The Glass Rock, constructed from 100 triangular glass elements and resembling a crystal, is being built on the world-famous Loreley Rock near St. Goarshausen (Germany). Special systems from Tapfheim-based Heavydrive were used for the overhead installation of the panes weighing up to 700 kg.
The glass triangles all had to be mounted overhead from the outside. Façade engineers Frener & Reifer installed the glass elements on three sides by placing the MRK 55 assembly crane with overhead manipulator and compatible suction system on the plateau and positioning the panes in the right place using the telescopic arm.

However, the remaining glass elements had to be installed from the opposite side, approximately ten meters below, as installation from the plateau proved impossible. The South Tyrolean company Frener & Reifer ordered two Heavydrive cranes with a 3-axis overhead manipulator to do this job. The Heavydrive MRK 144 has a load capacity of up to three tonnes and a hook height of 14.4 metres. In combination with the 3-axis manipulator, the fitters were able to position the glass triangles accurately and securely overhead. The team had to put all their trust in the technology. The systems were controlled very easily by remote control. The complete overhead installation was successfully completed in just three weeks.

The Loreley is a slate rock in the middle of the UNESCO World Heritage Site Middle Rhine Valley. The Mythoshalle (Myth Hall), featuring a roof structure approximately eight meters high and designed like a glass rock, is being constructed on the Loreley plateau. The Mythoshalle is due to open in 2025 and will be the centre of the Loreley Culture and Landscape Park.

Tags: #Loreley #Glassrock #Mythhall #Overheadinstallation #Assemblycrane #Heavydrive #Frener&Reifer #vandaglasEckelt #Eastman