Lookout Tower in Schömberg, Germany

Customer Project

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[DE] CP 001189 | Look-out Tower in Schömberg

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Timber Column to Platform Pinned Connection (© Ingenieurbüro Braun GmbH & Co. KG)
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Lookout Tower Model (Left) and Deformation Image (Right) in RFEM (© Ingenieurbüro Braun GmbH & Co. KG)
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Connection Steel Stress Analysis in RFEM (© Ingenieurbüro Braun GmbH & Co. KG)
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Model of the Lookout Tower in RFEM (© Ingenieurbüro Braun GmbH & Co. KG)
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Lookout Tower in Schömberg During Construction (© Ingenieurbüro Braun GmbH & Co. KG)
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Timber Columns and Bracing (© Ingenieurbüro Braun GmbH & Co. KG)

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12/09/2020

001189

This multi-material tower structure includes mainly timber and steel elements. Only the foundation and attached rigid columns were constructed as reinforced concrete.

Owner	Municipality of Schömberg, Germany www.schoemberg.de
Structural Analysis	Ingenieurbüro Braun GmbH & Co. KG www.braun-ing.de
Concrete Structure	Pfirmann Industriebau GmbH & Co. KG www.pfirmann-bau.de
Timber and Steel Structures, Elevator, Electrical Engineering	Stahlbau Nägele GmbH www.stahlbau-naegele.de

Model Data

Model

Model | Lookout Tower Made of Timber and Steel

The lookout tower floor plan is formed by a regular dodecagon, which is made of twelve radial timber columns. The columns further attach to the platform levels with a pinned connection. At the base point, the timber columns are supported by the approximately 17.76-foot-high rigid reinforced concrete columns. The structure’s lateral stiffness includes a diagonal tension member bracing system with a total of six circumferential steel pipe compression rings. The three platforms are flat cross-laminated timber (CLT) panels, each designed as a horizontal wall.

Inside the tower is a frame-like steel structure which includes vertical and horizontal I-sections and tension member cross bracing. The main platform elevations are 66, 115, and 164 ft above ground. An additional partial platform cantilever is constructed 148 ft above ground. This partial platform covers approximately 1/3 of the available floor plan area and houses the zip-line entrance. Two panels are enlarged on the central platform at a height of 115 ft. This is where the zip-line entry is located.

The tower’s foundation is a flat, twelve-sided floor slab. Attached are circular column supports which further connect to the structure’s timber columns. The staircase steel columns, similar to the timber columns, are supported by the foundation’s fixed square columns.

Project Location

75328 Schömberg

Germany

Keywords

Lookout tower Timber tower Steel tower Mixed construction

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