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AISC 341-22 BRBF design load combination

AISC 341-22 BRBF design load combination

AISC 341-22 BRBF design load combination

Hi ,

i am designing a BRBF for tilt up structure and i have a question for the seismic load combination including overstrength factor, i did the design including Rho only (1.3) for the braces and when it comes to beams and columns i used the maximum capacity of the braces using those questions (βωRyPysc in compression) and ( ωRyPysc in tension). However in the AISC 341-B.2 it says do i need to include the overstrength factor in my calculation instead of the Rho factor i am just confused


RE: AISC 341-22 BRBF design load combination

It says use overstrength, but overstrength need not be greater than the capacity limited force based on the capacity of the brace. You can technically use either - but if you have the capacity limited BRB force, you can limit it to that value.

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