FIELD: construction.
SUBSTANCE: method of fabrication of steel supports with polygonal cross-section comprises cutting of steel sheet with forming of a work piece in the form of extended rectangle or trapeze, the work piece along the length is formed from steel sheets with different thickness decreasing towards the support top, meanwhile the steel sheets are interconnected by butt welding and longitudinal stiffening diaphragms in the form of plates installed edgeways in the interval between sides of the support cross section. Then the work piece is bent with formation of sides and welding of free edges along the length with forming of the closed section.
EFFECT: reduced steel consumption for support manufacture.
5 dwg
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| MULTIFACETED SUPPORT | 2020 |
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RU2743980C1 |
| MODULAR FOUNDATION FOR SUPPORT | 2019 |
|
RU2706274C1 |
