FIELD: construction.
SUBSTANCE: invention relates to the field of construction, namely to beams and beam systems, which in the invention are characterised by versions of design. A composite construction beam comprises a lengthy jacket, having length and internal volume that creates the first hole. A typical construction beam comprises the first channel in the internal volume of the lengthy jacket. The first channel has a bent shape stretching along the longitudinal direction of the beam, and the second channel in the inner volume of the lengthy jacket, besides, the second channel passes along at least a part of the lengthy jacket length. The first channel and the second channel communicate with each other. At least in one version of realisation the construction beam comprises the first shelf located at the lengthy jacket relative to the first hole.
EFFECT: improved design.
41 cl, 16 dwg
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