The RegioTram is a light rail system in Kassel and its surroundings. The German Dlubal Software customer osd Ingenieure from Frankfurt am Main was in charge of the structural planning for the tram station.
Column-free platform roofing
The structural design includes a light and filigree timber-steel construction, which is able to span three platforms without columns and is very attractive. The selected basket arch shape allows the preservation of the overarching station covering system and the use of conventional elevated chains in the station area, while at the same time adapting to the barrel-shaped structures of the existing station roofs.
The barrel shell is based on Zollinger construction
The structural model of the roof consists of a barrel shell made of wooden slats, the loads of which are transferred at certain points into the reinforced concrete trough via a steel box girder structure. The timber supporting structure is based on the "Zollinger construction system", a single-curved lamella structure in which the members are arranged in a diamond shape and one member length extends across two spans.
The main difference compared to the Zollinger construction system is the rigid design of the nodes. Due to the flat shell geometry, large bending moments had to be transferred into the node. For this purpose, a new joint system in the form of a plug-in connection with glued-in dowels was developed. This joining system was converted into a guiding detail that could be transferred to all nodes. The roof structure won the Hessian Timber Construction Award in 2008.
| Structural Engineering | Structural analysis: osd – office for structural design Frankfurt am Main, Germany www.o-s-d.com Architect: Pahl + Weber-Pahl Architekten BDA Planungsgesellschaft mbH & Co. KG Darmstadt www.pahl-architekten.de Construction: Grossmann Bau Rosenheim www.grossmann-bau.de |
| Investor | Kasseler Verkehrsgesellschaft AG www.kvg.de |
