Friction fit composite column

A method of constructing a building structure with a composite assembly adapted for use as a vertical support column, the method comprising:

• providing a lower assembly comprising:
• a connection bracket comprising a bottom plate having first, second, third, and fourth edges, the connection bracket further comprising first and second connection blades secured to the bottom plate edges and extending away from the bottom plate, the first and second connection blades extending between the first and second edges and positioned interior of the third and fourth edge;
• a plurality of support rods extending away from the bottom plate;
• and
• a body comprising plastic formed about at least a portion of the support rods of the plurality of support rods, the body extending away from the bottom plate in a direction opposite the first and second connection blades;
• inserting at least a portion of the lower assembly into a hole;
• forming a footing about at least a portion of the lower assembly;
• and
• securing an upper assembly to the first and second connection blades, the upper assembly comprising:
• a first elongated layer comprising a first elongated member and a second elongated layer comprising a second elongated member, wherein the first and second elongated members are secured to each other along respective lengthwise faces of the first and second elongated members, and a first dual sided connector arranged between the first elongated member and the second elongated member such that the first dual sided connector simultaneously engages the first elongated member and the second elongated member, the first dual sided connector comprising:
• a unitary base plate having a first surface and a second surface;
• first and second tooth pairs extending outwardly from the first surface of the base plate, the first and second tooth pairs each comprising a first tooth and a second tooth, the first tooth and the second tooth each having an axis perpendicular to the first surface of the base plate, the first tooth being twisted about the axis of the first tooth and the second tooth being twisted about the axis of the second tooth;
• and
• third and fourth tooth pairs extending outwardly from the second surface of the base plate, the third and fourth tooth pairs each comprising a third tooth and a fourth tooth, the third tooth and the fourth tooth each having an axis perpendicular to the second surface of the base plate, the third tooth being twisted about the axis of the third tooth and the fourth tooth being twisted about the axis of the fourth tooth.