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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3D-Modell und Foto vom Seilspielgerät „Globe“ (© Screenshot: Dipl.-Des. Heinz Bornemann, Bad Bentheim/© Image: Berliner Seilfabrik)
3D-Modell und Foto einer „Tetragode“ (© Screenshot: Dipl.-Des. Heinz Bornemann, Bad Bentheim/© Image: Berliner Seilfabrik)
RF-/PLATE-BUCKLING Add-on Module for RFEM/RSTAB | Plate Buckling Analysis for Plates with or Without Stiffeners According to 1993-1-5
RFEM/RSTAB Add-on Module RF-IMP/RSIMP | Generation of Geometric Replacement Imperfections and Pre-deformed Replacement Structures
Extension of the RF-/STEEL Warping Erosion module | Lateral -torsional buckling analyzes of members according to the second -order theory with 7 degrees of freedom
RFEM/RSTAB add-on module RF-/TOWER effective lengths | Determination of effective lengths of lattice towers
RFEM/RSTAB add-on module RF-/TIMBER AWC | Design of members made of timber according to ANSI/AWC NDS-2015 (US standard)
RFEM/RSTAB add-on module RF-/JOINTS Timber-Timber to Timber | Design of direct timber connections according to Eurocode 5
RFEM/RSTAB add-on module RF-/JOINTS Steel-Column Base | Hinged and restrained column bases according to EC 3
RFEM/RSTAB add-on module RF-/STEEL BS | Design of steel members according to BS 5950 or BS EN 1993-1-1
RFEM add-on module RF-LOAD-HISTORY | Consideration of plastic deformations from previous load conditions
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
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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