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Slip Critical Connection

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StructuralAddict

Civil/Environmental
Jul 19, 2016
103
Hi,

The bolt slip resistance in slip-critical connections is Rn/Ω = [μ Du hf Tb ns /Ω] per Eq. J3-4 of AISC 360-16.

For the splice shown below:
(1) What should I use for (hf)? Is there one filler between the connected parts (hf = 1.0)? Or are there two fillers between the connected parts (hf = 0.85)? Please refer also to Figure C-J3.3 in the Commentary of AISC 360-16 that shows how they defined single vs multiple filler plates.

(2) The filler plates have long-slotted holes, so this will be taken into account by adjusting the Ω factor to become 2.14 per Eq. J3-4. Just wanted to confirm this?

Thanks.

SPLICE_g4jcko.png
 
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1. I would interpret that as a single filler plate.

2. I think that is conservative but likely appropriate.
 
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