Assemblies and methods for erecting structures

Abstract

A precast concrete wall system comprising a first precast assembly including a first foundation and a first column positioned offset from a center of the first foundation; a second precast assembly including a second foundation and a second column positioned offset from a center of the second foundation; and a wall extending between the first precast assembly and the second precast assembly. At least a portion of the wall is received within a first channel formed in the first column, and at least a portion of the wall is received within a second channel formed in the second column. The first precast assembly, the second precast assembly, and the wall are configured to be installed at a site without the use of in-situ concrete.

What is claimed is: 
     
         1 . An assembly comprising:
 a precast concrete foundation defining a first surface;   a precast concrete column extending from the first surface at a location offset from a center of the first surface; and   a beam positioned at least partially within the pre-cast concrete foundation and at least partially within the pre-cast concrete column;   wherein the assembly is a unified precast concrete assembly.   
     
     
         2 . The assembly of  claim 1 , wherein the precast concrete foundation includes a first plurality of rebar. 
     
     
         3 . The assembly of  claim 2 , wherein the precast concrete column includes a second plurality of rebar. 
     
     
         4 . The assembly of  claim 1 , wherein the precast concrete column includes a first channel extending along a first side surface and a second channel extending along a second side surface. 
     
     
         5 . The assembly of  claim 1 , wherein an angle between the first channel and the second channel is within a range of 90 degrees to 180 degrees. 
     
     
         6 . The assembly of  claim 5 , wherein the angle is 135 degrees. 
     
     
         7 . The assembly of  claim 1 , wherein the precast concrete foundation defines a second surface; wherein the second surface is spaced from and parallel to the first surface. 
     
     
         8 . The assembly of  claim 1 , wherein the beam is a steel flange beam. 
     
     
         9 . The assembly of  claim 1 , wherein the foundation includes a notch formed in the first surface; and wherein the notch is aligned with a first channel in the precast concrete column. 
     
     
         10 . A system comprising:
 a first precast assembly including a first foundation and a first column positioned offset from a center of the first foundation;   a second precast assembly including a second foundation and a second column positioned offset from a center of the second foundation; and   a wall extending between the first precast assembly and the second precast assembly;   wherein at least a portion of the wall is received within a first channel formed in the first column, and at least a portion of the wall is received within a second channel formed in the second column; and   wherein the first precast assembly, the second precast assembly, and the wall are configured to be installed at a site without the use of in-situ concrete.   
     
     
         11 . The system of  claim 10 , further comprising a first notch formed in the first foundation; wherein the first notch is aligned with the first channel. 
     
     
         12 . The system of  claim 11 , wherein at least a portion of the wall is received within the first notch. 
     
     
         13 . The system of  claim 12 , further comprising a spacer at least partially received within the first channel. 
     
     
         14 . The system of  claim 10 , further comprising a precast concrete cap positioned at a top surface of the first column, wherein the precast concrete cap includes a notch and a portion of the first column is received within the notch. 
     
     
         15 . A method of erecting a structure, the method comprising:
 excavating an earthen hole;   positioning a unified precast concrete assembly at least partially within the earthen hole;   
       wherein the unified precast concrete assembly includes a foundation and a column; and
 inserting a portion of a precast concrete wall within a channel formed in the column; 
 wherein the structure is erected without pouring concrete in-situ. 
 
     
     
         16 . The method of  claim 15 , wherein excavating the earthen hole includes compacting soil within the earthen hole and adding a layer of gravel. 
     
     
         17 . The method of  claim 15 , wherein the unified precast concrete assembly is formed offsite and transported to the earthen hole. 
     
     
         18 . The method of  claim 15 , further comprising coupling a cap to a top of the column. 
     
     
         19 . A method of manufacturing a unified precast concrete assembly, the method comprising:
 casting a concrete foundation with a beam extending from the concrete foundation;   casting a concrete column with a cavity;   positioning the concrete column on the concrete foundation with the beam at least partially positioned within the cavity; and   filling the cavity with concrete to unify the concrete foundation with the concrete column.   
     
     
         20 . The method of  claim 19 , wherein the cavity extends through the concrete column along a longitudinal axis of the concrete column.