Anchor Plate at Edge of Concrete Slab
Anchor Plate at Edge of Concrete Slab
(OP)
Hi,
I am designing a plate with rectangular plate with four welded headed studs near slab edge. The plate has a large shear force being applied to the plate (toward the edge). Concrete Breakout with or without reinforcing using Appendix D, indicates failure.
Use of slab reinforcing/ties to avoid Appendix D works, however...there are two row of anchors, the closest row to the edge does not have bars that are fully developed anchoring it. The row away from the edge is anchored to rebar that is fully developed. All anchors are welded to a common plate. If all the shear is design to be resisted by the row away from the edge, the anchors fail in shear.
Should I reject the design?
Thanks!
I am designing a plate with rectangular plate with four welded headed studs near slab edge. The plate has a large shear force being applied to the plate (toward the edge). Concrete Breakout with or without reinforcing using Appendix D, indicates failure.
Use of slab reinforcing/ties to avoid Appendix D works, however...there are two row of anchors, the closest row to the edge does not have bars that are fully developed anchoring it. The row away from the edge is anchored to rebar that is fully developed. All anchors are welded to a common plate. If all the shear is design to be resisted by the row away from the edge, the anchors fail in shear.
Should I reject the design?
Thanks!






RE: Anchor Plate at Edge of Concrete Slab
RE: Anchor Plate at Edge of Concrete Slab
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Anchor Plate at Edge of Concrete Slab
If there's tension present, you would also need to use D.8 part: Interaction of tensile and shear forces.
Cheers
M
RE: Anchor Plate at Edge of Concrete Slab