Sandwich erection lift anchor with welding plate assembly
The present invention relates towards an erection lift anchor with welding plate assembly for embedment in a concrete member, such as a precast or tilt-up wall. The erection anchor of the present invention allows for concrete members, such as walls, to be positioned by the use of standard lifting equipment (cranes with cable attachments, etc.) by connecting lifting attachments to the erection lift anchor which is embedded in a concrete member. The present invention also allows for concrete members to be connected together via the erection lift anchor whereby the welding plate of one erection lift anchor embedded in a first concrete member is welded to the welding plate of another erection lift member embedded in a second concrete member.
1. An erection lift anchor comprising:
an anchor plate having a top face, a bottom, at least one lifting attachment aperture, at least one reinforcement bar aperture, and a foot;
a welding plate formed of a single planar element having a top flat face, a bottom face, and an access aperture that passes through the top flat face and the bottom face, wherein the bottom face of the welding plate is attached to the top face of the anchor plate, and wherein the top face of the welding plate is a planar surface which is perpendicular to the anchor plate.
2. The erection lift anchor of claim 1 , wherein the anchor plate further comprises a first channel, a second channel an a platform section.
3. The erection lift anchor of claim 2 , wherein the platform section is positioned lower than the top of the anchor plate.
4. The erection lift anchor of claim 1 , wherein the foot comprises a first proturding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform.
5. The erection lift anchor of claim 4 , wherein the foot platform is positioned lower than the bottom of the anchor plate.
6. An erection lift anchor kit comprising an erection lift anchor and a void former;
wherein the erection lift anchor comprises an anchor plate and a welding plate;
wherein the anchor plate has a top face, a bottom, at least one lifting attachment aperture, at least one reinforcement bar aperture, and a foot;
wherein the welding plate has a top flat face, a bottom face, and an access aperture;
wherein the bottom face of the welding plate is attached to the top face of the anchor plate, and wherein the top face of the welding plate is a planar surface which is perpendicular to the anchor plate; and
wherein the void former comprises a top face, bottom face and an anchor plate channel.
7. The erection lift anchor kit of claim 6 , wherein the anchor plate further comprises a first channel, a second channel an a platform section.
8. The erection lift anchor kit of claim 7 , wherein the platform section is positioned lower than the top of the anchor plate.
9. The erection lift anchor kit of claim 6 , wherein the foot comprises a first protruding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform.
10. The erection lift anchor kit of claim 9 , wherein the foot platform is positioned lower than the bottom of the anchor plate.
11. The erection lift anchor kit of claim 6 , wherein the bottom face of the void former is arcuate in shape.
12. The erection lift anchor kit of claim 6 , wherein the kit further comprises at least one reinforcement bar.
13. An erection lift anchor comprising an anchor plate and a welding plate:
wherein the anchor plate has a top face, a bottom, at least one lifting attachment aperture, at least one reinforcement bar aperture, a first channel, a second channel a platform section and a foot which comprises a first protruding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform; and
wherein the welding plate has a top flat face, a bottom face, and an access aperture, and wherein the bottom face of the welding plate is attached to the top face of the anchor plate, and wherein the top face of the welding plate is a planar surface which is perpendicular to the anchor plate.
14. The erection lift anchor of claim 13 , wherein the platform section is positioned lower than the top of the anchor plate.
15. The erection lift anchor of claim 13 , wherein the foot platform is positioned lower than the bottom of the anchor plate.
16. An erection lift anchor kit comprising an erection lift anchor and a void former;
wherein the erection lift anchor comprises an anchor plate and a welding plate;
wherein the anchor plate has a top face, a bottom, at least one lifting attachment aperture, at least one reinforcement bar aperture, a first channel, a second channel a platform section and a foot which comprises a first protruding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform;
wherein the welding plate has a top flat face, a bottom face, and an access aperture;
wherein the bottom face of the welding plate is attached to the top face of the anchor plate, and wherein the top face of the welding plate is a planar surface which is perpendicular to the anchor plate; and
wherein the void former comprises a top face, an arcuate bottom face and an anchor plate channel.
17. The erection lift anchor kit of claim 16 , wherein the platform section is positioned lower than the top of the anchor plate.
18. The erection lift anchor kit of claim 16 , wherein the foot platform is positioned lower than the bottom of the anchor plate.
19. A method of securing concrete members to each other comprising:
positioning a first void former having a top face and a bottom face and an anchor plate channel on a first erection lift anchor comprising an anchor plate and a welding plate; wherein the anchor plate has a top, a bottom, a lifting attachment aperture, reinforcement bar apertures, and a foot; the welding plate has a top face, a bottom face, and an ac&ess aperture; wherein the bottom face of the welding plate is attached to the top of the anchor plate; and wherein the anchor plate channel of the first void former receives the anchor plate of the first erection lift anchor and covers the lifting attachment aperture of the first erection lift anchor, to form a first void former/anchor system;
embedding the first void former/anchor system in a first concrete member having an outer face, such that the top face of the first erection lift anchor is flush with the outer face of the first concrete member;
removing the first void former from the first erection lift anchor;
positioning a second void former having a top face and a bottom face and an anchor plate channel on a second erection lift anchor comprising an anchor plate and a welding plate; wherein the anchor plate has a top, a bottom, a lifting attachment aperture, reinforcement bar apertures, and a foot; the welding plate has a top face, a bottom face, and an access aperture; wherein the bottom face of the welding plate is attached to the top of the anchor plate; and wherein the anchor plate channel of the second void former receives the anchor plate of the second erection lift anchor and covers the lifting attachment aperture of the second erection lift anchor, to form a second void former/anchor system;
embedding the second void former/anchor system in a second concrete member having an outer face, such that the top face of the second erection lift anchor is flush with the outer face of the second concrete member;
removing the second void former from the second erection lift anchor;
securing the first concrete member to the second concrete member by welding the welding plate of the first erection anchor lift to the welding plate of the second erection anchor lift.
20. The method of claim 19 , wherein the anchor plate of the first erection lift anchor further comprises a first channel, a second channel an a platform section; and
wherein the anchor plate of the second erection lift anchor further comprises a first channel, a second channel an a platform section.
21. The method of claim 19 , wherein the wherein the foot of the first erection anchor lift comprises a first protruding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform; and
wherein the foot of the second erection anchor lift comprises a first protruding section, a second protruding section, a first upwardly projecting face, a second upwardly projecting face, and a foot platform.