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Block Shear Strength

Block Shear Strength

Block Shear Strength

I have a question on Block shear Strength. In AISC 13th edition on page 16.1-112 equation (J4-5) gives available strength of 0.6Fu. In AISC 9th edition (green book) page 5-77 equation (J4-1) gives available strength of 0.30Fu. Why such the increase in available strength?

RE: Block Shear Strength

There is a Design factore of 0.5 needed on the 0.6Fu. So the two different equations end up being the same. Found this information on a little cheat sheet AISC has for bolts welds and connected parts.

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