"Solhjul" Art Project in Give, Denmark
In May 2015, the "Solhjul" art project (in English: sun wheel) by artist Bo Karberg officially opened. The 39.3-foot‑high wheel is located in the center island of a traffic circle in Give, Denmark. It is now the new symbol of the town.
Schmidt Nielsen ApS
Ingenieurbüro für Baustatik FRI
When creating the artwork, artist Bo Karberg was inspired by a 5,000-year old disk wheel. It was found in 1948 in Pilkmosen, near Give. The disk wheel is considered the oldest wheel in Europe and is located in the Danish National Museum in Copenhagen.
The outer ring of the "sun wheel" is made of steel, covered with a GRP shell, and the inner grid consists of prestressed stainless steel tension bars. Glass plates are integrated into the grid structure, similar to the glass pyramid of the Louvre in Paris.
The diameter of the wheel is 36 ft. On the bottom side, the wheel is fixed in a foundation with the following dimensions: w x h x d = 13.1 ft x 22.9 ft x 8.2 ft.
The inner grid consists of a total of 7,405 parts - round steel bars with diameters ranging from 0.47 to 1.5 in.
The sculpture was funded by the EU and the Ministry of Food, Agriculture, and Fisheries of Denmark, as well as by a broad range of individuals and companies.
Engineer Martin Schmidt-Nielsen says: “The 'Solhjul' art project was designed with the RSTAB and RFEM programs. Dlubal's great support contributed to the success.”
See more information about the sculpture at www.solhjul.dk.
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The support conditions of a beam subjected to bending are essential for its resistance to lateral-torsional buckling.
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.
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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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