When we design hold downs for wood shear walls, we use the load combination (0.6-0.14SDS)D+0.7pE (seismic) and 0.6D+W (wind) to calculate the uplift. In an other word, the formula we use are T=(Mot-(0.64-0.14SDS)Mr)/L (seismic) and T=(Mot-0.6Mr)/L. We got many projects approved using these...
I am designing a 3-story building with SMF in the front and SCBF in the other three sides. Interior columns are subjected to gravity load only. How can I set the dual system in the steel frame design preferences? I tried to use SMF under the code AISC360-05/IBC2006 without ignoring the seismic...