From an engineering point of view, the most interesting components are probably the ten timber trusses with a length of 41 m and an average height of 4.2 m. They could not be transported in one piece from Lungern OW to Davos GR (through half of Switzerland). It was not possible to transport them in one piece from Lungern OW to Davos GR (through half of Switzerland). The design as a frame with the support on the A-shaped inner struts meant that the tensile forces had to be anchored on the outside of the façade using a tension band.
Through the targeted use of hardwood, trusses can be optimised up to the highest load level. However, this requires a high-performance connecting means such as GSA Technology (connection with glued-in threaded rods). In order to better understand the problems in the truss nodes, almost 100 truss nodes were tested and evaluated in the n’H laboratory.
were tested and evaluated.
Although simple and reduced to the essentials, the HCD training hall meets the defined requirements. The high loads combined with the large span and the available dimensions also make this building interesting from an engineered timber construction point of view.
Read the article in ProHolz 4/22 (german).