Vertical & Horizontal Irregularities, Type 4 (ASCE 07-16, 12.3.3)

[smokiibear]

For light framed wood shear wall structures, is uplift required to be design with overstrength also? or only the compression? In figure c12.3-5, there is a note stating that anchorage is designed for standard load combinations.

How do you typically approach this?

Are there any other considerations and/or exclusions with regard to light frame wood shear walls for irregularities?

Thanks

 

[HTURKAK]

Relevant para. of C12.3.3.4 Elements Supporting Discontinuous Walls or
Frames

( For wood light-frame shear wall construction, the final sentence of Section 12.3.3.4 results in the shear and overturning
connections at the base of a discontinuous shear wall (i.e., shear fasteners and hold-downs) being designed using the load combinations
of Section 2.3 or 2.4 including seismic effect without overstrength rather than the load combinations of Section 2.3 or 2.4 including seismic effect with overstrength of Section 12.4.3 (Figure C12.3-5). The intent of the first sentence of Section 12.3.3.4 is to protect the system providing resistance to
forces transferred from the shear wall; strengthening of the shear wall anchors to this system is not required to meet this intent. )

And the figure c12.3-5 ;



IMO, it is more than clear.