Patent ID: 7779603

Claim:
A support structure of a building, comprising: a central support piece having a rectangular cross-section and being arranged at a central position of the support structure, and a plurality of winding support pieces having a substantially elongate platelike shape and being combined and arranged around the central support piece, while being sequentially spirally wound when viewed from a longitudinal direction, wherein the central support piece and adjacent winding support pieces are adhered to each other, wherein two of the adjacent winding support pieces positioned inside and outside relative to each other are adhered to each other, wherein first, second, third, fourth, and fifth winding support pieces are sequentially spirally wound around the central support piece when viewed from the longitudinal direction, wherein only the first to fourth winding support pieces form a first layer around the central support piece, and the fifth winding support piece is one of only four winding support pieces that form a second layer around the first layer, and wherein the fourth winding support piece protrudes by a length that is equal to a thickness of the fifth winding support piece.