![]() When I check the values for 3 bolts through 7 bolts, I get the tabulated value with e=1.625", and a different value for e=1.5". This is within round-off error of 43.4 kips. ![]() If I add 1/8" to the eccentricity, that is e=1.625", then C=2.42, and the bolt capacity is 43.3 kips. At 17.9 kips per bolt (3/4" A325-N, LRFD), we should see the bolt capacity for this size connection equal to 44.4 kips, not 43.4 kips (2.48*17.9=44.4). Running the instantaneous center on the bolt group provides C=2.48, that is there are 2.48 bolts effective. Table 10-9 tells us that the eccentricity e is a/2, or 1.5". For the connection in question, we have a=3" (distance from the weld to the bolt line). However, I can't duplicate the value in the 14th edition table.
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