Rope Playground Equipment, Germany
The German company Berliner Seilfabrik designs and produces playground equipment for children since the 1970s. Climbing in the spatial rope net structures helps children to develop and improve their psychomotor skills and three-dimensional perception abilities. The pieces of play equipment have names like Globe, UFO, or Twist & Shout.
Berliner Seilfabrik GmbH & Co.
Dipl.-Des. Heinz Bornemann
Bad Bentheim, Germany
Heinz Bornemann, the customer of Dlubal Software, provides structural analysis and design for a wide range of this playground equipment. for example the 'Globe' and various types of 'Tetragode'. For the calculation of spatial supporting structures, the structural frame analysis software RSTAB is used.
GlobeThe outer frame of the Globe play structure consists of eight curved glued-laminated beams of of 4 23⁄32 in / 9 29⁄64 in. The inner three-dimensional net includes the ropes 'U-Rope' developed by Berlin Seilfabrik. The outer dimensions L x W x H are approximately 14.8 ft x 14.8 ft x 16.4 ft. The analysis was performed in the add-on modules TIMBER Pro and STEEL.
Tetragode is a central mast play structure. A number of children can climb into great heights simultaneously. This type of Tetragode is about 21.3 ft high. The spatial rope net also consists of U-Ropes by Berliner Seilfabrik and extends from the central steel mast outwards in four directions.
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Knowledge Base Articles
The stresses in the cross‑section of the member are calculated in the so‑called stress points. These points are set at such locations in the cross‑section, at which the extreme values for the stresses due to the loading types can occur in the material.
3D model and photo of a "tetragode" (© screenshot: Dipl.-Des. Heinz Bornemann, Bad Bentheim/© Picture: Berlin Cable Factory)
3D model and photo of the rope play equipment "Globe" (© screenshot: Dipl.-Des. Heinz Bornemann, Bad Bentheim/© picture: Berliner Seilfabrik)
Product Features Articles
Frequently Asked Questions (FAQ)
- How can I create a twisted beam in RFEM?
- How can I perform the design of the tension resistance of a smooth column in a smooth bucket column base, i.e. the design against pulling out of the column?
- I design timber components. The deformations of load combinations deviate from the manual calculation exactly by the factor of the material partial safety factor. Why?
- For which programs is the STEEL Warping Torsion add-on module available?
- In the RF‑/STEEL EC3 add-on module, I obtain an extremely high design ratio for a member in the case of "Biaxial bending, shear and axial force." Although the axial force is relatively high, the design ratio seems to be unrealistic. What is the reason?
- How can I run the RX‑TIMBER Frame plugin? I did not find it in the Add-on Modules menu nor in Project Navigator - Data.
- I have just noticed that the STEEL EC3 add-on module also calculates with γM0 = 1.0 when designing a tension member, although it should actually be γM2 = 1.25. How can I perform the design correctly?
- I have a question about the results of the serviceability limit state design: How is the increment of the dead load by the factor 1.8 and the imposed load by 1.48 explained in the result combinations for the SLS design?
- I design a cross-section created in the SHAPE‑THIN program by using the RF‑STEEL EC3 add-on module, but the program shows the error message "ER006 Invalid type of c/t-part for cross-section of type General." What can I do?
- Is it possible to design intermittent welds in the CRANEWAY add-on module?
Programs Used for Structural Analysis
The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions
Stress analysis of steel members
Timber design according to Eurocode 5, SIA 265 and/or DIN 1052