FIELD: building, particularly support beams for form used for concreting cast-in-place floors.
SUBSTANCE: post is formed at least of two sheets each having thickness of not less than 0.03 beam height. Sheets are arranged in slots with forming closed longitudinal channel of rectangular cross-section. Slot depth is not less than 1.4 sheet thickness. Sheets are composed of several components butt-joined at an angle of 45o one to another, wherein beam has not more than one butt-join in each cross-section. Beam comprises spacers having cross-sections mating to that of closed longitudinal channel and rigidly secured in symmetry about butt-joint. Spacer length is not less than beam height.
EFFECT: increased manufacturability and reduced beam weight.
5 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2256756C2 |
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