| 摘要 |
A load-bearing system comprises at least three spaced apart columns 2, at least one beam 1 having openings 5 through which the columns pass and a plurality of hollow sleeves 3 through which the columns pass, wherein the sleeves cannot pass through the openings in the beam and so act to support the beam. The columns preferably each comprise a hollow tubular pipe, preferably a tubular cardboard pipe and more preferably a spirally wound cardboard pipe. The sleeves may comprise tubular cardboard pipe. The beam may comprise a sheet material that may be formed into a hollow box section (1, figure 3) having an internal space. Collars 4 having a central bore through which a column passes are preferably located within the internal space to form part of the openings in the beam. The load-bearing system is preferably in the form of a shelving system comprising at least two beams, wherein the beams form shelves. Also disclosed is a kit for forming the load-bearing system of the invention. |
