Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Shear Friction

[Subject Prev][Subject Next][Thread Prev][Thread Next]
ACI 38-02 11.7.8 reads
"Shear-friction reinforcement shall be appro-
priately placed along the shear plan and shall be
anchored to develop the specified yield strength on
both sides by embedment, hooks, or welding to spec-
cial devices."
Normally, development lengths can be reducd by the ratio of the area of steel required divided by the area of steel provided, but the phrase "specified yield strength" appears to imply that the full development length must be provided, regardless of much extra reinforcing is provided.  The commentary even mentions "full-tensile anchorage"
Normally I would take the conservative approach and provide the full development length, but for this particular detail, I'm a few inches short of being able to provide the full development length for hooked bars and increasing the length creates a lot of other problems.  If I reduce the development length based upon the area of steel provided, I have more than 3x the shear friction capacity required.
Any comments?
M. David Finley, P.E.
2086 SW Main Boulevard - Suite 111
Lake City, FL  32025