Floor structure

Abstract

A floor cassette assembly comprising:a structural bottom panel having an upper surface and a lower surface,a plurality of spaced apart upstanding rib members attached to the upper surface of said panel, wherein adjacent spaced apart rib members define a void between said adjacent rib members, andsupport means located intermediate adjacent spaced apart rib members, the support means configured to support particulate material within the voids defined by the respective adjacent rib members at a location that is vertically spaced from the structural bottom panel.

1 . A floor cassette assembly comprising:
 a structural bottom panel having an upper surface and a lower surface, a plurality of spaced apart upstanding rib members attached to the upper surface of said panel, wherein adjacent spaced apart rib members define a void between said adjacent spaced apart rib members, and   support means located intermediate to adjacent spaced apart rib members, the support means configured to support particulate material within the voids defined by the respective adjacent rib members at a location that is vertically spaced from the structural bottom panel.   
     
     
         2 . A floor cassette assembly as claimed in  claim 1 , wherein the support means configured to support the particulate material is a non-rigid support means. 
     
     
         3 . A floor cassette assembly as claimed in  claim 1 , wherein the support means configured to support the particulate material is a resilient support means. 
     
     
         4 . A floor cassette assembly as claimed in  claim 1 , wherein the support means comprises a shelf that spans substantially across a width of the void defined between adjacent rib members. 
     
     
         5 .- 9 . (canceled) 
     
     
         10 . A floor cassette assembly as claimed in  claim 1 , wherein the support means configured to support the particulate material comprises a resilient pad. 
     
     
         11 . A floor cassette assembly as claimed in  claim 10 , wherein the resilient pad substantially fills a portion of the void intermediate to the particulate granular material supported thereon and the structural bottom panel. 
     
     
         12 . A floor cassette assembly as claimed in  claim 10 , wherein the resilient pad is formed from any one or more of neoprene, mineral wool, cellulose fibre, or expanded polystyrene. 
     
     
         13 . A floor cassette assembly as claimed in  claim 1 , wherein the support means for supporting the particulate material is configured to provide vibration damping. 
     
     
         14 . A floor cassette assembly as claimed in  claim 1 , comprising a particulate material, wherein the particulate material comprises any one or more of sand, crushed concrete, crushed glass, saw dust, or a mixture thereof. 
     
     
         15 . A floor cassette assembly as claimed in  claim 1 , wherein the particulate material is a granular particulate material. 
     
     
         16 . A floor cassette assembly as claimed in  claim 1 , wherein the particulate material is contained within a bag or bags. 
     
     
         17 . A floor cassette assembly as claimed in  claim 1 , further comprising a top panel, wherein the top panel spans across the upper ends of the rib members. 
     
     
         18 . A floor cassette assembly as claimed in  claim 17 , wherein the top panel is a load-bearing panel. 
     
     
         19 . (canceled) 
     
     
         20 . A floor cassette assembly as claimed in  claim 17 , further comprising a compressible material located intermediate to the particulate material supported on the support means and the top panel, optionally wherein the compressible material comprises a mineral wool. 
     
     
         21 . A floor cassette assembly as claimed in  claim 1 , further comprising one or more end panels configured to enclose the voids defined between the rib members and the structural bottom panel. 
     
     
         22 . A floor cassette assembly as claimed in  claim 1 , wherein the structural bottom panel and the rib members are of wood construction. 
     
     
         23 . A floor cassette assembly as claimed in  claim 17 , wherein the top panel is of wood construction. 
     
     
         24 . A floor cassette assembly as claimed in  claim 17 , wherein the top panel is of plasterboard construction. 
     
     
         25 . A floor cassette assembly as claimed in  claim 1 , wherein the structural bottom panel is fire resistant. 
     
     
         26 . A floor cassette assembly as claimed in  claim 1 , wherein the structural bottom panel further comprises a fire protective layer, coating or finish.