Concrete Shear stress per 1963 ACI code
Concrete Shear stress per 1963 ACI code
(OP)
I am trying to confirm the shear strength of a beam that was originally designed to the 1963 code. Based on the current code the beam does not have the proper shear strength, but we want to verify that the beam met the code at the time it was designed. I can't find a copy of the ACI 318-63 code and wanted to know if there was anyone out there that could help me with what the concrete allowable unit stress was per the '63 code and what the design shear equation was at this time and the requirements for minimum shear reinforcing. Any help would be appreciated.






RE: Concrete Shear stress per 1963 ACI code
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Even if the beam does not pass using 1963 strength design criteria, be sure to check it using 1963 working stress requirements - either approach would have been acceptable using that code edition.
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RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
Beams Without Web Reinforcement
fv = 1.1 x (fc')0.5
Beams With "Proper" Web Reinforcement
fv = 5 x (fc')0.5
These are the allowable values, as usual, to really evaluate what you have "the devil is in the details"... most likely will have to go through the complete Working Stress design to see exactly what was done.
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RE: Concrete Shear stress per 1963 ACI code
Do you need a copy of both?
BA
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
BA
RE: Concrete Shear stress per 1963 ACI code
BA
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
BA
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
BA
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code
RE: Concrete Shear stress per 1963 ACI code