knelli
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Hi,
SII practice exam question 450 d) Determine the column design load for column C-2 and square HSS size.
Seismic Design Category D
Ordinary Steel Concentrically Braced Frames
Live load is snow load
Answer uses LRFD Equation 1.2D+1.0E+L
and they directly plug in the actual calculated seismic force for E and treat the snow load like a live load.
Shouldn't they use BLC 5. (1.2+.2Sds)D+pQe+.2S
or 5. (1.2+.2Sds)D+(omega)(Qe)+.2S ??
In this problem, how do you decide whether or not to use the overstrength factor for the column design?
IBC SDM example 1A SCBF, SDC E (not stated, but S1>0.75) applies overstrength to the columns in the braced frames.
There is Errata on this problem, but the same equations are used.
Thank you!
SII practice exam question 450 d) Determine the column design load for column C-2 and square HSS size.
Seismic Design Category D
Ordinary Steel Concentrically Braced Frames
Live load is snow load
Answer uses LRFD Equation 1.2D+1.0E+L
and they directly plug in the actual calculated seismic force for E and treat the snow load like a live load.
Shouldn't they use BLC 5. (1.2+.2Sds)D+pQe+.2S
or 5. (1.2+.2Sds)D+(omega)(Qe)+.2S ??
In this problem, how do you decide whether or not to use the overstrength factor for the column design?
IBC SDM example 1A SCBF, SDC E (not stated, but S1>0.75) applies overstrength to the columns in the braced frames.
There is Errata on this problem, but the same equations are used.
Thank you!
