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City, Country Tulln an der Donau, Austria
Year 2006–2008
Client NÖ Landesgartenschau Planungs- und Errichtungsgesellschaft
Architect Maurer&Partner
Services Structural Engineering
Facts Height: 35 m | Length of steel cable: 2,100 m | Length of railings: 700 m | Total area of glass: 455 m² | Total weight : approx. 380 t

A 30m ‘treetop walk’ consisting of multiple viewing platforms, stairways and pedestals was designed by the Lower Austrian architect Ernst Maurer. 700m of railing is needed up to the top of the structure. The railing has an appealing design and is protected with glass panels. A lift enables accessibility for all to the upper viewing platform.

The "treetop walk" is a steel structure composed of steps and platforms. These are connected to the primary and secondary structure with various struts and connections. The balustrade consists of a glazed truss frame. The loading platforms consist of steel grating supported on the beams. Steel gratings form the treads of the stair which are screwed to the sub-girders of the trusses. A glazed steel frame for the lift core is integrated into the structure. The foundation consists of piles, which are partially connected through foundation beams and the lift pit construction. The steel struts are rigidly connected to the foundation beams via shaggered mounting parts encased in the concrete and with welded-on screw bases.