FIELD: construction.
SUBSTANCE: invention relates to construction, in particular to cantilever beam design. Cantilever beam of regular-variable height from shaped pipes (bent-curved profiles) has a section on the cantilever of round ring shape and in the closing – a flat-oval shape with height equal to 3.064 of the ring diameter, or cross-section of the beam on the cantilever has square shape and in closing – rectangular shape with height equal to 3.0 of the square size.
EFFECT: reduced consumption of structural material (steel), reduced level of stress concentration, increased efficiency of thin-walled profiles.
1 cl, 8 dwg
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