FOLDABLY CONSTRUCTED FORCE-RESISTING STRUCTURES HAVING INTERIOR VERTICAL SUPPORT RIBS

摘要

A foldably constructed force-resisting structure comprises a top member and abottom member foldably constructed and assembled from one or more blanks ofsheet material, preferably corrugated paperboard, initially in a flatcondition prior to folding. The top member includes a base panel and at leastone side portion folded downwardly from the base panel. The bottom memberincludes a base panel and at least one side portion folded upwardly from thebase panel. The top and bottom members are assembled in nested relation todefine an interior of the force-resisting structure between the base panels,which are at least substantially parallel to one another. The force-resistingstructure includes a vertical support rib structure in the interior definingan X-shaped or cross-shaped configuration. The support rib structure isfoldably constructed from the top member base panel and/or the bottom memberbase panel and provides vertical support for a load disposed on the base panelof the top member.