Hilti Allowable loads into CMU
Hilti Allowable loads into CMU
(OP)
I am designing an angle supporting a concrete beam with hilti Kwik bolts into a CMU wall. I see the loads they give are allowable loads. I have factored reactions from my beam, and designed the angle using factored loads and plastic design.
Now would you re figure a service load and re figure the tension/shear on the bolt and use the allowable loads, or stick with the factored loads, and eat into the factor of safety for the anchor?
Thanks
Now would you re figure a service load and re figure the tension/shear on the bolt and use the allowable loads, or stick with the factored loads, and eat into the factor of safety for the anchor?
Thanks
RE: Hilti Allowable loads into CMU
RE: Hilti Allowable loads into CMU
RE: Hilti Allowable loads into CMU
Thanks
RE: Hilti Allowable loads into CMU
“Faith is taking the first step even when you don’t see the whole staircase.” MLK
RE: Hilti Allowable loads into CMU
RE: Hilti Allowable loads into CMU
Other options I have used:
1) Contact Hilti
2) Use your factored loads directly against the allowable loads. Yes, you essentially get penalized, but it's only safer than before. You just increase the factor of safety.
3) Use the smallest factor to get back to allowable loads. I.e. if the tension/shear factored load was 1.2DL + 1.6LL, dividing your load by 1.2 would bring you to a conservative allowable load.
2 and 3 are useful to me when it seems impractical to go back through a couple pages of calcs. When it comes to situations like this, I'll never eat into the factor of safety, and will only add to it.
RE: Hilti Allowable loads into CMU
RE: Hilti Allowable loads into CMU
RE: Hilti Allowable loads into CMU