US2025052060A1PendingUtilityA1

Assemblies and methods for erecting structures

Assignee: County Prestress & Precast LLCPriority: Aug 8, 2023Filed: Aug 6, 2024Published: Feb 13, 2025
Est. expiryAug 8, 2043(~17 yrs left)· nominal 20-yr term from priority
Inventors:Mark Shumate
E04C 5/10E04C 3/34E04C 5/165
48
PatentIndex Score
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Cited by
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Claims

Abstract

An assembly comprising a first precast concrete structure including a first rebar member and a second precast concrete structure including a second rebar member. The second rebar member is aligned with the first rebar member along an axis. The assembly further includes a sleeve with an aperture. The sleeve is coupled to the first rebar member. The assembly further includes a connecting member coupled to the second rebar member, and a rebar dowel coupled to the connecting member; wherein the rebar dowel extends through the aperture in the sleeve and is at least partially received within the sleeve. The assembly further includes a grout positioned within the sleeve; a gasket positioned between the sleeve and the connecting member; a seal positioned between the first precast concrete structure and the second precast concrete structure; and a shim positioned between the first precast concrete structure and the second precast concrete structure.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An assembly comprising:
 a first precast concrete structure including a first rebar member;   a second precast concrete structure including a second rebar member; wherein the second rebar member is aligned with the first rebar member along an axis;   a sleeve with an aperture, the sleeve coupled to the first rebar member;   a connecting member coupled to the second rebar member;   a rebar dowel coupled to the connecting member; wherein the rebar dowel extends through the aperture in the sleeve and is at least partially received within the sleeve;   a grout positioned within the sleeve;   a gasket positioned between the sleeve and the connecting member;   a seal positioned between the first precast concrete structure and the second precast concrete structure; and   a shim positioned between the first precast concrete structure and the second precast concrete structure.   
     
     
         2 . The assembly of  claim 1 , wherein the first precast concrete structure includes a first surface, and the second precast concrete structure includes a second surface, and wherein the seal is positioned between the first surface and the second surface. 
     
     
         3 . The assembly of  claim 2 , wherein the first precast concrete structure further includes a lifting anchor assembly with an aperture formed in the first surface. 
     
     
         4 . The assembly of  claim 1 , wherein the sleeve is aligned with the axis and the axis extends through the aperture. 
     
     
         5 . The assembly of  claim 1 , wherein the sleeve is coupled to the first rebar member with a threaded connection. 
     
     
         6 . The assembly of  claim 1 , wherein the sleeve includes a cylindrical wall extending along the axis, a cavity, a first charge port in fluid communication with the cavity, and a second charge port in fluid communication with the cavity. 
     
     
         7 . The assembly of  claim 1 , wherein the first charge port extends along a first charge port axis and the second charge port extends along a second charge port axis, wherein the first charge port axis is perpendicular to the axis and the second charge port axis is perpendicular to the axis. 
     
     
         8 . The assembly of  claim 1 , wherein the sleeve is coupled to the first rebar member at a first end of the sleeve, and the aperture is positioned at a second end of the sleeve, wherein the second end is opposite the first end. 
     
     
         9 . The assembly of  claim 1 , wherein the connecting member has a first end coupled to the second rebar member and a second end coupled to the rebar dowel, where the first end is opposite the second end. 
     
     
         10 . The assembly of  claim 1 , wherein the rebar dowel has a threaded end coupled to the connecting member. 
     
     
         11 . The assembly of  claim 1 , wherein the gasket includes a gasket aperture and the rebar dowel extends through the gasket aperture. 
     
     
         12 . The assembly of  claim 1 , wherein the seal is a polyurethane foam. 
     
     
         13 . The assembly of  claim 1 , wherein the seal includes a first ridge, a second ridge, and a portion extending between the first ridge and the second ridge. 
     
     
         14 . The assembly of  claim 13 , wherein the shim is positioned between the first ridge and the second ridge. 
     
     
         15 . The assembly of  claim 14 , wherein the shim has a thickness within a range of 0.25 inches to 0.75 inches. 
     
     
         16 . The assembly of  claim 1 , wherein the seal and the shim are part of a joint assembly with at least a 2-hour fire-rating. 
     
     
         17 . The assembly of  claim 1 , wherein the first precast concrete structure includes an opening and a plurality of rebar members extending through the opening. 
     
     
         18 . The assembly of  claim 1 , wherein the first precast concrete structure or the second precast concrete structure includes a first notch, a second notch, and a hoist beam at least partially positioned with the first notch and the second notch. 
     
     
         19 . The assembly of  claim 1 , wherein the second precast concrete structure is a cap. 
     
     
         20 . The assembly of  claim 1 , wherein the first precast concrete structure and the second precast concrete structure at least partially form an elevator shaft or a stairwell. 
     
     
         21 . A method of erecting a structure, the method comprising:
 positioning a seal on a first precast concrete structure;   raising a second precast concrete structure;   coupling a rebar dowel to the second precast concrete structure;   aligning the second precast concrete structure with the first precast concrete structure; and   lowering the second precast concrete structure onto the first precast concrete structure, wherein the seal is positioned between the first precast concrete structure and the second precast concrete structure.   
     
     
         22 . The method of  claim 21 , further comprising positioning a plurality of shims on the seal. 
     
     
         23 . The method of  claim 21 , wherein raising the second precast concrete structure includes attaching a crane to a plurality of lifting anchors in the second precast concrete structure. 
     
     
         24 . The method of  claim 21 , wherein coupling the rebar dowel to the second precast concrete structure includes threading the rebar dowel into a connecting member in the second precast concrete structure. 
     
     
         25 . The method of  claim 21 , wherein aligning the second precast concrete structure with the first precast concrete structure includes aligning the rebar dowel with a sleeve formed in the first precast concrete structure. 
     
     
         26 . The method of  claim 21 , wherein lowering the second precast concrete structure onto the first precast concrete structure includes lowering the rebar dowel into a sleeve formed in the first precast concrete structure. 
     
     
         27 . The method of  claim 21 , further including injecting a grout into a sleeve formed in the first precast concrete structure prior to lowering the second precast concrete structure onto the first precast concrete structure. 
     
     
         28 . The method of  claim 21 , further including forming the first precast concrete structure and the second precast concrete structure at an offsite facility and transporting the first precast concrete structure and the second precast concrete structure to a jobsite. 
     
     
         29 . The method of  claim 21 , wherein the first precast concrete structure and the second precast concrete structure form one story of a building when joined together. 
     
     
         30 . The method of  claim 21 , further including
 positioning a second seal on the second precast concrete structure;   raising a third precast concrete structure;   coupling a second rebar dowel to the third precast concrete structure;   aligning the third precast concrete structure with the second precast concrete structure; and   lowering the third precast concrete structure onto the second precast concrete structure;   
       wherein the second seal is positioned between the second precast concrete structure and the third precast concrete structure. 
     
     
         31 . The method of  claim 21 , further including cutting a plurality of rebar from an opening formed in the first precast concrete structure. 
     
     
         32 . The method of  claim 31 , further including adding masonry to the opening. 
     
     
         33 . The method of  claim 21 , wherein no scaffolding is required. 
     
     
         34 . The method of  claim 21 , wherein no backer-rod and fire caulk joint assembly is positioned between the first precast concrete structure and the second precast concrete structure.

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