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ASD Reaction Loads, in accordance with IBC 12, need LFRD for Appendix D

ASD Reaction Loads, in accordance with IBC 12, need LFRD for Appendix D

(OP)
Good Afternoon Gents.

Noob here. I am mighty confused about this.

Reactions from a building designer were given, in ASD load combinations. According to ACI 318-11, Ultimate Strength is supposed to be used for all concrete design, as per Ch. 9. Am I missing something or should I request that the reactions be in LFRD format?

RE: ASD Reaction Loads, in accordance with IBC 12, need LFRD for Appendix D

Hey Leftwow,

If the building designer gave you the breakdown of the reactions(i.e. dead load rxn, live load rxn, etc...) then they will likely tell you that it is on you to appropriately factor the reactions as you need for your design.

If the building designer didn't give you the reaction breakdown, then you will need to request that from them.

RE: ASD Reaction Loads, in accordance with IBC 12, need LFRD for Appendix D

As Winelandv said, you may have to run some load combos to get it into LRFD but overall if they didn't give you enough info then yes you should ask.

Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/

RE: ASD Reaction Loads, in accordance with IBC 12, need LFRD for Appendix D

I guess this question is only for "Gents"....

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