Hollow Core Chord Reinforcement
Hollow Core Chord Reinforcement
(OP)
Can someone explain how hollow core chord reinforcement is achieved when bearing on light gage walls. I dont have a masonry bond beam to take advantage of. any ideas?
does the end cell on one edge get reinforced and grouted completely? how about the end-of-plank condition?
thanks ahead of time.
does the end cell on one edge get reinforced and grouted completely? how about the end-of-plank condition?
thanks ahead of time.






RE: Hollow Core Chord Reinforcement
RE: Hollow Core Chord Reinforcement
RE: Hollow Core Chord Reinforcement
For chord steel, I prefer to develop the bars around the corners with full lap lengths.
This gives you a full rubber band effect around the perimeter so you don't have to rely on unreinforced concrete friction to maintain your chord steel at the ends.
RE: Hollow Core Chord Reinforcement
See also PCI Design Handbook (5th Edition), Section 3.10.2.
RE: Hollow Core Chord Reinforcement
RE: Hollow Core Chord Reinforcement
RE: Hollow Core Chord Reinforcement
Years ago some engineers relied on the dead load friction of the plank on a masonry wall to take the load, not that I'm advocating that, but it was done many times.
RE: Hollow Core Chord Reinforcement
As others have mentioned, you can place rebar in the cut end cores and grout. You might consider a continuous angle with headed studs welded to the top track. The grout will tie the slab to the angle and wall.
RE: Hollow Core Chord Reinforcement
Sorry, I may not have been clear. The hollow core slabs are cast with a weld plate in the bottomwe bearing side. The weld plate is welded to a continuous rolled steel angle that is welded to the top plate of the steel stud wall.
RE: Hollow Core Chord Reinforcement
You should probably check the eccentricity of the angle to the plane of the hollow core slab for additional bending on the planks (this is probably pretty picky).