Rubble stone anchoring system
Anchoring systems for use in cavity wall structures having an inner wythe and an outer wythe constructed of rubble stone are disclosed. The anchoring system employs an anchor fastened to or set within the inner wythe that extends into the cavity and connects to a J-hook. A vertically adjustable veneer tie enwraps the J-hook, limiting lateral movement and front-to-back displacement, and is set within the bed joint of the outer wythe. The anchoring system minimizes cavity size and provides stability for an uncoursed outer wythe equivalent to that of anchoring systems for standards coursed bed joints.
1. An anchoring system for use in a wall having an inner wythe and an outer wythe in a spaced apart relationship with a cavity therebetween, said outer wythe formed from a plurality of rubble stones having a bed joint between adjacent rubble stones, said rubble stones having an irregular surface, said anchoring system comprising:
a sheet metal wall anchor configured to be disposed on said inner wythe, said wall anchor, in turn, comprising:
a base portion having a planar body; and
a planar free end portion contiguous with said base portion, said free end portion configured to extend into said cavity, said free end portion having a first receptor, wherein the first receptor comprises an aperture extending through the free end portion;
a connection bar formed of wire having a fitting at one end thereof for interengaging said first receptor and an elongated body depending therefrom, and, upon interengagement with said first receptor said elongated body is disposed in said cavity, wherein the connection bar is configured for loose interengagement with the first receptor such that the connection bar is free of fixed connection to the anchor and is vertically movable with respect to the anchor; and,
a veneer tie for disposition on said connection bar, said veneer tie in turn comprising:
an aperture at one end thereof dimensioned for limiting lateral movement and front-to-back displacement; and
an insertion end portion configured for embedment in said bed joint of said outer wythe;
whereby said veneer tie is limited to vertical alignment with said bed joint.
2. An anchoring system as described in claim 1 , wherein said veneer tie is a wire formative.
3. An anchoring system as described in claim 2 , wherein said veneer tie insertion end portion further comprises:
front leg portions configured for insertion into said bed joint of said outer wythe;
at least one side leg portion coextensive and substantially co-planar with said front leg portions and said apertured end, said side leg portion having a depression therein; and
a reinforcement wire disposed in said side leg portions and configured for disposition in said depression of said side leg portion;
whereby, upon installation of said anchoring system with an interconnected reinforcement wire in said bed joint, said anchoring system provides seismic protection.
4. An anchoring system as described in claim 2 , wherein said veneer tie apertured end is formed to enwrap the connection bar elongated body thereby restricting lateral movement and front-to-back displacement.
5. An anchoring system as described in claim 4 , wherein said veneer tie aperture end lateral movement is limited to 0.050 inches and said veneer tie apertured end front-to-back displacement is limited to 0.050 inches.
6. An anchoring system as described in claim 1 , wherein said inner wythe is constructed of material selected from a group consisting of poured concrete, masonry units, and steel columns.
7. An anchoring system as described in claim 6 , further comprising a fastener configured to mount the base of the wall anchor to the inner wythe, the fastener comprising:
a bolt having a head; and
an insulative washer for mounting under said head of said bolt;
whereby said fastener secures said anchor to said inner wythe and minimizes thermal transfer between said inner wythe and said anchoring system.
8. An anchoring system as described in claim 1 , wherein said anchoring system further comprises:
a second wall anchor configured to be disposed on said inner wythe, said second wall anchor, in turn, comprising:
a second base portion having a planar body; and
a second free end portion contiguous with said second base portion, said second free end portion configured to extend into said cavity, said second free end portion having a second receptor, wherein the second receptor is an aperture extending through the second free end portion;
whereby said elongated body of said connection bar is disposed within said first receptor and said second receptor thereby securing said connection bar within said cavity.
9. An anchoring system as described in claim 1 , wherein the fitting of the connection bar is a J-hook fitting.
10. An anchoring system as described in claim 1 , wherein the first receptor is configured to receive the fitting of the connection bar and an elongated body of a second connection bar.
11. An anchoring system as described in claim 1 , wherein the veneer tie comprises a front portion having opposite ends and configured for insertion into a bed joint of the outer wythe, side leg portions extending from respective opposite ends of the front portion and generally converging with each other at a convergence location, the front portion and side leg portions from the front portion ends to the convergence location generally forming a triangle, and a receiving end on a side of the convergence location opposite the front portion, the receiving end having a closed loop shape for receiving a portion of the anchoring system therein.
12. An anchoring system for use in a wall having an inner wythe and an outer wythe in a spaced apart relationship with a cavity therebetween, said outer wythe formed from a plurality of rubble stones having a bed joint between adjacent rubble stones, said rubble stones having an irregular surface, said anchoring system comprising:
a sheet metal wall anchor configured to be disposed on said inner wythe, said wall anchor, in turn, comprising:
a base portion having a planar body,
a planar free end portion contiguous with said base portion, said free end portion configured to extend into said cavity, said free end portion having a first receptor, wherein the first receptor comprises an aperture extending through the free end portion;
a second sheet metal wall anchor configured to be disposed on said inner wythe, said second wall anchor, in turn, comprising:
a second base portion having a planar body; and
a second planar free end portion contiguous with said second base portion, said second free end portion configured to extend into said cavity, said second free end portion having a second receptor, wherein the second receptor comprises an aperture extending through the second free end portion;
a connection bar formed of wire having a fitting at one end thereof for interengaging said first receptor and an elongated body depending therefrom, and, upon interengagement with said first receptor said elongated body is disposed in said cavity, wherein the connection bar is configured for loose interengagement with the first receptor such that the connection bar is free of fixed connection to the anchor and is vertically movable with respect to the anchor; and,
a veneer tie for disposition on said connection bar, said veneer tie in turn comprising:
an aperture at one end thereof dimensioned for limiting lateral movement and front to back displacement; and
an insertion end portion configured for embedment in said bed joint of said outer wythe;
whereby said veneer tie is limited to vertical alignment with said bed joint and said elongated body of said connection bar is disposed within said first receptor and said second receptor, thereby restricting movement within said cavity.
13. An anchoring system as described in claim 12 , wherein said veneer tie is a wire formative.
14. An anchoring system as described in claim 13 , wherein said veneer tie apertured end is formed to enwrap the connection bar elongated body thereby restricting lateral movement to 0.050 inches and front-to-back displacement to 0.050 inches.
15. An anchoring system as described in claim 12 , wherein said veneer tie insertion end portion further comprises:
front leg portions configured for insertion into said bed joint of said outer wythe;
at least one side leg portion coextensive and substantially co-planar with said front leg portions and said apertured end, said side leg portion having a depression therein; and
a reinforcement wire disposed in said side leg portions and configured for disposition in said depression of said side leg portions;
whereby, upon installation of said anchoring system with an interconnected reinforcement wire in said bed joint, said anchoring system provides seismic protection.
16. An anchoring system as described in claim 15 , further comprising a fastener configured to mount the base of the wall anchor to the inner wythe, the fastener comprising:
a bolt having a head; and
an insulative washer for mounting under said head of said bolt;
whereby said fastening means secures said anchor to said inner wythe and minimizes thermal transfer between said inner wythe and said anchoring system.
17. An anchoring system as described in claim 12 , wherein said inner wythe is constructed of material selected from a group consisting of poured concrete, masonry units, and steel columns.
18. An anchoring system as described in claim 12 , wherein the fitting of the connection bar is a J-hook fitting.
19. An anchoring system as described in claim 12 , wherein the first receptor is configured to receive the fitting of the connection bar and an elongated body of a second connection bar.
20. An anchoring system as described in claim 12 , wherein the veneer tie comprises a front portion having opposite ends and configured for insertion into a bed joint of the outer wythe, side leg portions extending from respective opposite ends of the front portion and generally converging with each other at a convergence location, the front portion and side leg portions from the front portion ends to the convergence location generally forming a triangle, and a receiving end on a side of the convergence location opposite the front portion, the receiving end having a closed loop shape for receiving a portion of the anchoring system therein.