Adjusted Shear Value - NDS
Adjusted Shear Value - NDS
(OP)
I have to calculate a beam that has been notched on the tension face more than the building code allows. I'm reading the NDS and I think I'm on the right track but would like a little help.
Section 3.4.3 talks about shear design and goes into evaluating notches. They use a term..."adjusted design shear." Is this the maximum allowable shear applied to the beam? All other analysis uses shear stresses, etc. but this formula has no term for any applied load, shear, etc.
I do believe this is (Vr') the max allowable shear in the beam. Thanks.
Section 3.4.3 talks about shear design and goes into evaluating notches. They use a term..."adjusted design shear." Is this the maximum allowable shear applied to the beam? All other analysis uses shear stresses, etc. but this formula has no term for any applied load, shear, etc.
I do believe this is (Vr') the max allowable shear in the beam. Thanks.






RE: Adjusted Shear Value - NDS
RE: Adjusted Shear Value - NDS
It all depends on the grain and since grain in wood is highly variable, the NDS limits notches. If your notch is exceeded - I would proceed very carefully.
RE: Adjusted Shear Value - NDS
I previously misinterpreted the NDS thinking that notches greater than 1/6d should be evaluated using equation. Thanks.