Precast wall panels and method of erecting a high-rise building using the panels

Abstract

Precast wall systems and methods for constructing a high-rise building using the precast wall system is disclosed. In one embodiment, the system includes a plurality of interconnected precast panels, each having a top end plate, a bottom end plate, a plurality of vertical bars disposed between the end plates and a cementitious material encasing the vertical bars and defining a plurality of sides of the respective panel. A first of the precast panels has a first column member half defining a right side of the first panel, a second of the precast panels has a second column member half defining a left side of the second panel such that, when the right side of the first precast panel and the left side of the second precast panel are disposed horizontally adjacent to each other, the first column member half and the second column member half collectively form a column member.

What is claimed: 
     
         1 . A precast panel comprising:
 a rectangular panel made of a cementitious material having a top end, a bottom end, a left side, a right side, a front side, and a back side;   a top end plate on the top end of the panel and a bottom end plate on the bottom end of the panel, each of which is made of a metallic material;   vertical bars and horizontal bars encased in the cementitious material and arrayed to reinforce the precast panel; and   structural angles extending vertically along vertical corner edges of the panel, the structural angles being made of a metallic material.   
     
     
         2 . The precast panel of  claim 1 , wherein the structural angles are partially embedded in the panel. 
     
     
         3 . The precast panel of  claim 2 , further comprising shear studs embedded in the panel and securing the structural angles to the panel. 
     
     
         4 . The precast panel of  claim 1 , further comprising shear studs embedded in the panel and securing the structural angles to the panel. 
     
     
         5 . The precast panel of  claim 1 , further comprising:
 vertical ducts extending vertically within the panel, each of the top end plate and the bottom end plate having openings aligned with ends of the vertical ducts reaching the top end or bottom end, respectively;   horizontal ducts which from the left side to the right side.   
     
     
         6 . The precast panel of  claim 1 , wherein the cementitious material is any standard construction cement, epoxy-resins without course aggregate, concrete, or any combination thereof. 
     
     
         7 . The precast panel of  claim 1 , wherein the cementitious material has a compressive strength in the range of 5,000 psi and 20,000 psi. 
     
     
         8 . The precast panel of  claim 1 , wherein the cementitious material includes pozzolan, aggregate, or fibers. 
     
     
         9 . The precast panel of  claim 1 , wherein at least one of the vertical bars is secured to the top end plate and bottom end plate by means of respective couplers secured to internal surfaces of the top end plate and the bottom end plate, each coupler receiving an end of the one vertical bar within a cavity, the end of the one vertical bar secured to the coupler. 
     
     
         10 . The precast panel of  claim 1 , wherein at least one of the vertical bars is secured to the top end plate or the bottom end plate, by means of a coupler secured to an internal surface of the bottom end plate, the coupler receiving an end of the one vertical bar within a cavity, the end of the one vertical bar secured to the coupler. 
     
     
         11 . The precast panel of  claim 10 , wherein at least one of the couplers is a rebar coupler. 
     
     
         12 . The precast panel of  claim 10 , wherein the cavity of at least one of the couplers is threaded. 
     
     
         13 . The precast panel of  claim 10 , wherein the end of the one vertical bar is secured to the coupler by means of a plurality of vertically aligned threaded fasteners. 
     
     
         14 . The precast panel of  claim 1 , further comprising a horizontal plate extending between and secured to two of the vertical corner angles. 
     
     
         15 . The precast panel of  claim 14 , wherein the horizontal plate is partially embedded in the panel and secured to the panel by means of shear studs embedded in the panel. 
     
     
         16 . The precast panel of  claim 1 , wherein the top end plate or the bottom end plate extends beyond the top end or the bottom end, respectively to define a perimeter that is greater than a horizontal cross section of the panel. 
     
     
         17 . The precast panel of  claim 1 , wherein each of the top end plate and the bottom end plate extends beyond the top end and bottom end, respectively, to define perimeters that are greater than a horizontal cross section of the panel. 
     
     
         18 . The precast panel of  claim 1 , further comprising a horizontal link beam with a first end extending from a left or right side of the panel and a second end embedded in the panel.