Structural members for forming various composite structures

A composite column, comprising:

• first, second, third and fourth channels and each channel having a web, the webs of the first and third channels being mutually spaced and parallel, the webs of the second and fourth channels being mutually spaced and parallel, and perpendicular to the webs of the first and third channels, whereby the webs forming a rectangular cross-section with an inside hollow center, the first channel having first and second legs and the second channel having third and fourth legs, each leg radially extending from one of four corners of the rectangular cross-section at an incline relative to the respectively adjacent webs, and each leg having a pair of cylinders along an outer, longitudinal edge spaced from the rectangular cross-section;
• fifth and sixth channels directed perpendicular from the first channel;
• a spatial compression fitting engages a corresponding cylinder of each of the fifth and sixth channels by clamping the respective cylinder and a portion of a plane of an adjoining leg of each of said fifth and sixth channels, and defines an angle at which a web of the fifth channel is inclined relative to a web of the sixth channel;
• and
• a bracket having a plate connected at ends of the fifth and sixth channels, the bracket also being secured to at least the first channel by a column compression fitting that engages a length of the cylinders of the first channel, and the column compression fitting having concave mating surfaces for compression against the corresponding cylinders of the first channel.

A composite column, comprising:

• first, second, third and fourth channels forming the column with a rectangular hollow inside center and an outside column face, each channel including a web and first and second legs, each leg including a plane surface that extends from a side of the web and is inclined relative to the web, and a cylinder along an outer, longitudinal edge of each leg spaced from the web, the plane surface of each leg having a radial length extending from a corner of the rectangular hollow center of the column, tangentially to the respective cylinder of the corresponding leg so that said cylinder is on an opposite side of the plane surface and forms a portion of the outside column face, the webs of the first and third channels being mutually spaced and parallel, the webs of the second and fourth channels being mutually spaced and parallel, and perpendicular to the webs of the first and third channels, the plane surface of each leg of the first and third channels being adjoining to one of the plane surfaces of the second and fourth channels;
• a fitting secured to the channels for fixing the channels in position such that the webs form the hollow rectangular center of the column;
• fifth and sixth channels directed perpendicular from the first channel;
• a plate secured at ends of the fifth and sixth channels and secured to at least the first channel;
• and
• a spatial compression fitting which engages a corresponding cylinder of each of the fifth and sixth channels by clamping the respective cylinder and a portion of a plane of an adjoining leg of each of said fifth and sixth channels, and defines an angle at which a web of the fifth channel is inclined relative to a web of the sixth channel.