| 摘要 |
A load support system or shelf system includes vertical supports and at least two horizontally extending beams attached to the vertical supports. The cross-section of a beam is L-shaped, and the joists extend along and rest upon a relieved horizontal surface of each of the beams. A plurality of spaced-apart cross trusses are affixed to each of the joists to form a unitary, open lattice for supporting loads. The number and spacing of the cross trusses can be adjusted to securely support the load designed to be accommodated by the system, but the number of trusses can be minimized to correspondingly reduce the weight and cost of the system. |
