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Structural member and system

  • US 4,007,574 A
  • Filed: 09/22/1975
  • Issued: 02/15/1977
  • Est. Priority Date: 09/22/1975
  • Status: Expired due to Term
First Claim
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1. A structural system, comprising:

  • a plurality of elongated structural members having substantially triangular cross-sections along the longitudinally extending axis of the elongated members, and said structural members including means joining said members together to provide a support framework skeleton of vertical and horizontal structural components transmitting forces in compression, tension, shear, bending, torsion and any combination thereof;

    said substantially triangular cross-sections providing each member with three outer faces;

    each member having a substantially circular axial passage therethrough defining an inner surface of a substantially circular passageway extending parallel to the longitudinal axis of the member and substantially at the centroidal axis of the member to reduce the weight of the member; and

    non-supporting elements comprising electrical, plumbing, ventilation or sprinkler systems installed in said structural system for which said passageways serve as conduits.

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