Dlubal customer Wirth Haker PartmbB from Freiburg, Germany was responsible for the object and structural design. The office used RFEM for the structural analysis of the lattice tower and the pulpit on the top.
Structure
The total height of the tower structure is 43 m (141 ft), and the width of the four columns is 7.3 m (24 ft) on center at the base. The tower tapers towards the top, where the column spacing is 5 m (16.4 ft). The columns are oriented towards the center of the structure. They each have a diameter of 39 cm (1.3 ft) at the bottom and 25 cm (0.82 ft) at the top.
In order to achieve high durability, block-glued chestnut timber was used for the support members. There is no approval for glued chestnut timber in outdoor locations. For this reason, tests were carried out at the Stuttgart Materials Testing Institute, and approval was obtained in each individual case. The stair treads and platforms are made of oak.
The nodal points are made of duplex-coated steel. They were designed in a way (with dowels and key screws) so that individual support elements can be exchanged easily in the future. Effective solutions for wood protection were also fulfilled. For example, all horizontal beams and end faces are covered with sheets at the top. In addition, all timber parts are connected with steel to provide a gap between the elements for air circulation.
| Location | Am Goetheturm 60599 Frankfurt am Main Germany |
| Owner | Grünflächenamt Frankfurt am Main frankfurt.de |
| Object and Structural Design | Wirth Haker PartmbB Consulting Engineers ing-wh.de |
| Assembly | Holzbau Amann GmbH www.holzbau-amann.de |
