FIELD: construction.
SUBSTANCE: invention relates to construction, namely to thin-wall metal structures of shell type, in which thin-wall element performs not only enclosing, but carrying function. Hollow structural metal element of closed cross-section consists of corrugated walls and stiffness diaphragms rigidly connected to them and installed along element length. It may additionally include longitudinal angular stringers. Wall ends are equipped with support connecting flanges, and stiffness diaphragms are made in the form of rigid closed short shells of folded shape from strips of corrugated sheet with crosswise orientation of corrugation in relation to longitudinal axis of element. In the support zones, at length of 1/4 span of the L element, stiffness diaphragms are arranged with smaller pitch or rigidly connected to each other.
EFFECT: high bearing capacity under conditions of complex resistance with reduced material consumption and labor intensity of manufacturing.
4 cl, 5 dwg
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