Column base to podium slab anchoring

Abstract

Concealed anchoring structure interconnecting (a) the base of an elongate, upright, tubular (hollow), structural building-frame column having a long axis, and (b) a generally planar and horizontal podium slab having a body with upper and lower surfaces which collectively define slab depth, with the long axis of the column being substantially normal to the plane of the slab. This anchoring structure includes elongate, nut-and-bolt structure which is disposed substantially on the column's long axis, with upper portions of the nut-and-bolt structure being concealed within the hollow base of the column, above the slab's upper surface, and the lower portions of the nut-and-bolt structure being disposed adjacent the slab's lower surface, whereby the nut-and-bolt structure anchorably interconnects the column and the slab.

1 . Concealed anchoring structure interconnecting (a) the base of an elongate, upright, tubular, structural building-frame column having a long axis, and (b) a generally planar and horizontal podium slab having a body with upper and lower surfaces which collectively define slab depth, and with the long axis of the column being substantially normal to the plane of the slab, said anchoring structure comprising 
 elongate, nut-and-bolt structure disposed substantially on the column's long axis, with upper portions thereof concealed within the hollow base of the column above the slab's said upper surface, and the lower portions thereof disposed adjacent the slab's said lower surface, said nut-and-bolt structure anchorably interconnecting the column and the slab.    
   
   
       2 . The anchoring structure of  claim 1  which further comprises generally planar plate structure joined to said column's base with the plane of this plate structure being disposed substantially normal to the column's long axis, and including a spanner portion extending generally across the column's long axis, and wherein said nut-and-bolt structure anchorably engages said spanner portion.  
   
   
       3 . The anchoring structure of claims  2 , wherein said spanner portion includes an elongate throughbore having a long axis which is substantially normal to the plane of said plate structure, and said nut-and-bolt structure includes a bolt with an elongate shank which extends through said throughbore.  
   
   
       4 . The anchoring structure of  claim 3 , wherein said spanner portion substantially fully defines said plate structure, and is disposed within the hollow interior of said column's base, with said column and plate structure joined via a weld connection.  
   
   
       5 . The anchoring structure of  claim 3 , wherein said spanner portion forms a central portion of said plate structure which further includes a perimeter portion extending laterally outwardly of said column's base in a manner circumsurrounding said column's said long axis.  
   
   
       6 . The anchoring structure of claims  1  which further includes a generally planar, slab-contacting base plate having a generally planar upper surface which is substantially co-planar with said slab's said upper surface, with the base of said column engaging said base plate's said upper surface.  
   
   
       7 . The anchoring structure of  claim 1 , wherein, when viewed from above, the anchored connection existing between said column and said slab presents the appearance of the base of the column terminating cleanly with a plane which contains the upper surface of said slab.