Precast structure and method of construction

Abstract

Precast structures are formed of precast walls fitted between precast posts extending from cast in place footings, prior to the pouring of a slab. During pouring of the slab, anchors may tie together the panels, posts and slab. Precast concrete, tension fabric or traditional roofing members may be added to form a post and beam construction that spans large open areas providing for flexible manufacturing, storage, hangar, office, schools, institutional, or residential interior design features, due to the structural integrity and cost advantages of structures produced using this method of precast construction.

1 . A method of construction for structures comprises:
 erecting a plurality of precast concrete posts;   fitting a precast concrete panel between a pair of the plurality of posts; and   pouring a slab, after the step of fitting, the slab having an upper slab surface extending a depth above a bottom surface of the precast concrete panel and having a lower slab foundation surface extending a distance below the bottom surface of the precast concrete panel.   
     
     
         2 . The method of  claim 1 , wherein a plurality of anchors extend from a surface of the precast concrete panels and the plurality of anchors extend from the surface of the precast concrete panels such that the plurality of anchors extend into the slab after the step of pouring is completed. 
     
     
         3 . The method of  claim 2 , wherein at least one anchor extends from a footing for supporting one of the pair of the plurality of precast concrete posts, and tying the at least one anchor from the footing of the precast concrete posts to the slab or slab foundation portion after the step of pouring. 
     
     
         4 . The method of  claim 3 , wherein the at least one anchor from each of the footings of the precast concrete posts overlap and tie into reinforcements within the slab after the step of pouring. 
     
     
         5 . The method of  claim 3 , wherein the plurality of precast concrete posts have reinforcing bars and the reinforcing bars extend exposed from a lower portion of the plurality of precast concrete posts are inserted into the footing during the step of erecting, prior to setting of a cementitious material of the footing. 
     
     
         6 . The method of  claim 2 , wherein the plurality of anchors are reinforcing bars internal to the precast concrete panels, reinforcing the structure of the precast concrete panels, and the reinforcing bars extend exposed from the surface of the precast concrete panels at least one-third of a meter. 
     
     
         7 . The method of  claim 6 , wherein the metal reinforcing bars extend exposed from the surface of the precast concrete panels at least one meter. 
     
     
         8 . A structure manufactured according to the method of  claim 1 , comprising:
 a plurality of posts;   a plurality of precast concrete panels, each of the plurality of precast concrete panels being inserted between two of the plurality of posts, and each of the plurality of precast concrete panels comprise at least one anchor extending beyond a surface of each of the plurality of precast concrete panels; and   a plurality of footings, each of the plurality of footings supporting one of the plurality of precast concrete posts; and   a poured slab, such that the at least one anchor of the plurality of precast concrete panels are tied into the slab.   
     
     
         9 . The structure of  claim 8 , wherein each of the plurality of footings has at least one anchor extending from a surface of each of the plurality of footings such that the anchor is tied into the slab. 
     
     
         10 . The structure of  claim 9 , further comprising a plurality of beams, and the beams tie the posts together, forming an integrated structural support frame for the structure. 
     
     
         11 . The structure of  claim 1 , wherein the plurality of precast concrete panels include a waffle pattern. 
     
     
         12 . The structure of  claim 1 , further comprising an expansion barrier inserted between each of the plurality of panels and the posts. 
     
     
         13 . The structure of  claim 12 , wherein the expansion barrier comprises an elastic membrane. 
     
     
         14 . The structure of  claim 12 , wherein the expansion barrier comprises an adhesive layer. 
     
     
         15 . The structure of  claim 12 , wherein the expansion barrier comprises a gel. 
     
     
         16 . The structure of  claim 12 , wherein the expansion barrier comprises a foam. 
     
     
         17 . The structure of  claim 12 , wherein the expansion barrier comprises a felt. 
     
     
         18 . The structure of  claim 12 , wherein each of the plurality of panels comprises a panel tongue, and the panel tongue is embedded at least 4 inches into a recess formed in the post. 
     
     
         19 . The structure of  claim 8 , further comprising a coil rod, wherein the coil rod is inserted through the precast or machined hole. 
     
     
         20 . The structure of  claim 19 , further comprising a beam, wherein the coil rod comprises a horseshoe washer placed on either end of the coil rod, and a coil nut secures one or more of the plurality of panels to the beam. 
     
     
         21 . The structure of  claim 8 , further comprising a channel in fluid communication with the hole surrounding the coil rod, providing a means for filling the hole and channel with a pourable grout. 
     
     
         22 . The structure of  claim 8 , wherein a pair of the plurality of panels are stacked one over the other between the two of the plurality of posts, forming a wall between the two of the plurality of panels.