Purpose. For the production of light load-bearing and enclosing structures of industrial and civil buildings, construction.
Technical properties. The beam consists of an upper chord made of rectangular pipes (120 ÷ 200 mm), a lower chord made of rectangular pipes in the form of an arched element, ribs (thickness t = 6 ÷ 8 mm), a wall made of a solid sheet (thickness t = 6 ÷ 8 mm), a corrugated wall of a wavy outline (thickness t = 2 ÷ 3 mm is possible), a support sheet (thickness t = 8 ÷ 10 mm), a support rib (thickness t = 10 ÷ 12 mm).
Scope. Construction industry enterprises manufacturing modern metal structures.
Advantages. The world analogue of the utility model is a steel beam with a corrugated wall of trapezoidal outline with a symmetrical step of corrugations. The Swedish company GLP proposed such designs back in 1970, which are successfully produced and used in different countries of the world. One of the most powerful manufacturers of beams with a corrugated wall is the Austrian company Zeman (founded in 1965), which develops corrugated beams (SIN beams) from corrugated sheet and steel strips. A resource-saving combined metal structure consisting of a corrugated wall of a wavy outline, support ribs, is distinguished by the fact that the upper and lower chords are made of rectangular pipes, the lower chord in the form of an arched element, the support sections in the form of steel sheets, which ensures savings in construction height and a significant reduction in material consumption.
Description. This design has improved technical and economic indicators: reduced material consumption, wide application options, aesthetics, etc.