Flat Plate Design - Column Strips For Shear Walls
Flat Plate Design - Column Strips For Shear Walls
(OP)
Is there anything in the ACI that specifically tells you how to deal with establishing column strips around a shear wall?
Throughout the years, aside from FEM, I've been taking the shortest span to the nearest column or wall from the nearest centerline of my shear wall to develop a column strip around it but this is just the way that I've learned this from engineers over the years. Occasionally I need to tweak it, depending on where I'm spotting my zero shear from FEM analysis. Is there anything that references exactly how to handle shear walls as columns for EFM or DDM?
Throughout the years, aside from FEM, I've been taking the shortest span to the nearest column or wall from the nearest centerline of my shear wall to develop a column strip around it but this is just the way that I've learned this from engineers over the years. Occasionally I need to tweak it, depending on where I'm spotting my zero shear from FEM analysis. Is there anything that references exactly how to handle shear walls as columns for EFM or DDM?






RE: Flat Plate Design - Column Strips For Shear Walls
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Flat Plate Design - Column Strips For Shear Walls
For walls i usually ensure i have slab bars top and bottom at 12 maximum, perpendicular to the wall plane, and making sure I continue spacing these bars four to six feet past the wall corner, where it's most liable to see atypical stress concentrations. Away from the walls, where I have typical regular column grids, I economize reinforcing tightly.
RE: Flat Plate Design - Column Strips For Shear Walls
Put a column at each end with a length of twice the wall width, centred 1 wall width back from the end of the wall and base the column strips on the spans to the ends of the wall from the columns either side. If the wall is very long, add extra columns between the ends so that the slab is basically continuously supported and will not affect the design either side. Then reinforce parallel to the wall as a middle strip, and perpendicular to the wall as normal column and middle strip.
RE: Flat Plate Design - Column Strips For Shear Walls
RE: Flat Plate Design - Column Strips For Shear Walls
https://books.google.com/books?id=hBF7zUuZ5A4C&...