Please take a look at AISC Manual of Steel construction - Allowable Stress Design (9th edition). Go to page 5-74 and look at equation J3-3. It basically tells me to use the smaller of the two values (Le*Fu/2d) and 1.2*Fu as the allowable bearing stress. Well if (Le*Fu/2d) is greater than 1.2*Fu, you are basically using 1.2*70000 = 84000 psi as the allowable bearing stress! Does that sound right? I think equation J8-1 on page 5-79 is the correct equation for the allowable bearing stress. Please advise. Am I making any mistake in reading equation J3-3?
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bearing stress on bolt hole
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