Met Mast on Radstadt Tauern, Austria
The construction of a 328-foot-high tower at an altitude of about 6,890 ft above sea level is a particularly challenging task. A project of this type was realized in September 2020 in the area of the "Windsfeld" summit in Flachau / Flachauwinkl, Austria. The met mast is one of the tallest structures in Austria.
|Structural Design, Assembly Assistance||
The Dlubal customer m3-ZT GmbH performed the structural analysis and design of the tower, including the planning and calculation of the construction details. They utilized RFEM for the structural analysis and design. Additionally, the engineers from m3-ZT supported the assembly at this incredible height.
Structure and Structural Design
The 328-foot-high truss tower has a triangular floor plan and consists of tubular steel sections. The center distance between the three main columns is about 1 ft. Every 33 ft, the slender mast is fixed by steel cables. Depending on the load, the cables have a diameter between 0.47 in and 0.75 in.
The structure was designed for an average wind speed of vb,0 = 101.71 ft/s (according to the Central Institution for Meteorology and Geodynamics Report [ZAMG]). m3-ZT GmbH generated wind loads utilizing RWIND Simulation and imported them to the RFEM model. The civil engineering office of DI Stallinger Johann+Partner from Upper Austria carried out the verification of the structural analysis and design. This office utilized a different structural analysis and design software and applied the wind loads according to the standard (EN 1991-1-4). One result of the verification was that the support forces from wind in both models only differed by a maximum of 2%.
Industrial climbers and a helicopter helped to assemble the mast. The tower will carry out wind measurements over a period of 1.5 years.
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RFEM/RSTAB add-on module RF-/JOINTS Steel-Tower | Hinged connections of lattice tower members according to EC 3
- How do I apply wind load on members of open structures?
- How can I create a drilled beam in RFEM?
- In connection with the calculation according to the large deformation analysis, I get significantly smaller deformations than for the calculation according to the linear static or second-order analysis. How is this possible?
- How is it possible to consider the real cross-section geometry of member elements in RWIND Simulation?
- Is it also possible to simulate an external steel structure in RWIND Simulation?
The upper and lower flanges have to be joined by a column, but there are the verticals and diagonals connected to the flanges.
How do I arrange the hinges?
- Is it possible in RF‑/TOWER Loading to display the intermediate steps for determining the wind load, such as the fullness coefficient?
- Where can I find the materials for the corresponding National Annexes in RFEM 6 and RSTAB 9?
- Is it also possible to use RF‑/TOWER Loading without the other TOWER add-on modules?
- I do not want to design a cross-section in the RF‑/STEEL EC3 add-on module. Can I quickly remove this cross-section from the selection?