Profiled metal sheet

Abstract

A profiled metal sheet for use in the construction of composite slabs is disclosed. The sheet includes a plurality of parallel longitudinal ribs separated by pans and male and female members at opposite sides of the sheet that enable adjacent sheets to be connected together in overlapping relationship. At least one of the ribs, male members and female members has a side that extends from the pan that is adjacent the rib or the member. The side includes a re-entrant section and a corner section that connects the side and the adjacent pan. The corner section includes a plurality of regions at spaced intervals along the length of the corner section that extend outwardly compared with adjacent regions of the corner section. The spaced regions are provided to improve longitudinal slip resistance of composite slabs formed from the sheet.

1 . A profiled metal sheet comprising: a plurality of parallel longitudinal ribs separated by pans, and male and female members at opposite sides of the sheet that enable adjacent sheets to be connected together by inserting a male member into a female member, at least one of the male and female members having a side that extends from the pan that is adjacent the member, the side including a re-entrant section, and a corner section that connects the side and the adjacent pan, and the corner section including a plurality of regions at spaced intervals along the length of the corner section that extend outwardly compared with adjacent regions of the corner section.  
     
     
         2 . A profiled metal sheet comprising: a plurality of parallel ribs separated by pans, and male and female members at opposite sides of the sheet that enable adjacent sheets to be connected together by inserting a male member into a female member, each rib having a pair of opposed sides that extend from adjacent pans, at least one side including a re-entrant section, and a corner section that connects each side and the adjacent pan, and one corner section at a side that has a re-entrant section or at least one such corner section including a plurality of regions at spaced intervals along the length of the corner section that extend outwardly compared with adjacent regions of the corner section.  
     
     
         3 . A profiled metal sheet comprising: a plurality of parallel ribs separated by pans, and male and female members at opposite sides of the sheet that enable adjacent sheets to be connected together by inserting a male member into a female member, each rib having a pair of opposed sides that extend from adjacent pans, at least one of the male and female members having a side that extends from the pan that is adjacent the member, at least one side of the ribs including a re-entrant section, at least one side of the male and female members including a re-entrant section, and a corner section that connects each side of the ribs and the male and female members and the adjacent pans, and one corner section at a side that has a re-entrant section or at least one such corner section including a plurality of regions at spaced intervals along the length of the corner section that extend outwardly compared with adjacent regions of the corner section.  
     
     
         4 . The profiled metal sheet defined in  claim 1  wherein the outwardly extending regions are in the form of crimps.  
     
     
         5 . The profiled metal sheet defined in  claim 1  wherein the outwardly extending regions may be roll-formed in the profiled metal sheet.  
     
     
         6 . The profiled metal sheet defined in  claim 1  wherein the outwardly extending regions extend at least 4 mm beyond adjacent regions of the corner section.  
     
     
         7 . The profiled metal sheet defined in  claim 1  wherein the outwardly extending regions extend at least 5 mm beyond the adjacent regions of the corner section.  
     
     
         8 . The profiled metal sheet defined in  claim 1  wherein the spacing between the outwardly extending regions is at least 15 mm.  
     
     
         9 . The profiled metal sheet defined in  claim 1  wherein the spacing between the outwardly extending regions is at least 30 mm.  
     
     
         10 . The profiled metal sheet defined in  claim 1  wherein the spacing between the outwardly extending regions is at least 50 mm.  
     
     
         11 . The profiled metal sheet defined in  claim 1  wherein the spacing between the outwardly extending regions is less than 95 mm.  
     
     
         12 . The profiled metal sheet defined in  claim 1  wherein the spacing between the outwardly extending regions is less than 80 mm.  
     
     
         13 . The profiled metal sheet defined in  claim 1  wherein the re-entrant section forms a small part only of the side of the rib or the male member or the female member.  
     
     
         14 . The profiled metal sheet defined in  claim 1  wherein the re-entrant section forms substantially all of the side of the rib or the male member or the female member.  
     
     
         15 . A composite slab comprising at least one profiled metal sheet, said profiled metal sheet comprising a plurality of parallel longitudinal ribs separated by pans, and male and female members at opposite sides of the sheet that enable adjacent sheets to be connected together by inserting a male member into a female member, at least one of the male and female members having a side that extends from the pan that is adjacent the member, the side including a re-entrant section, and a corner section that connects the side and the adjacent pan, and the corner section including a plurality of regions at spaced intervals along the length of the corner section that extend outwardly compared with adjacent regions of the corner section,and a layer of hardened concrete or other suitable castable material disposed on the sheet.