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Can someone explain why the answer is (D) 217k? Is the assumption that the 71K is not the maximum force that can be transferred to the SCBF, even though the Output table gives 71K as a snapshot Axial Force? Thank you in advance!

For wind analysis cases where a building is on an Escarpment or 2D ridge, can someone explain why K,z and K,h are not with respect to the base of the escarpment as opposed to the base of the building? Just did a PM problem on the Schuster 3rd Edition Lateral Depth (Problem 2), and I used h =...

In question 86(b) for the "East-west earthquake," why doesn't the solution consider the participating weight of he 25ft portion of wall between points A1 and A2? This wall is perpendicular to the direction of earthquake and I would imagine it would be similar to the "North-South" and how they...

Ive done several of these problems, and I probably should have been keeping a closer tab on the various methods that different books used. Say I have a tilt up wall with diaphragm at 10ft high with a 3 ft parapet (total wall ht is 13 ft), and say the wall sends its load to the horizontal...

Part B - I'm calculating that the Brace force is a tad over the 70% limit of the AISC Seismic Provision limit of 30-70% of the total story force. Has anyone done this problem & is anyone getting the same result? Also, the "solutions" do not even check this limit. I'm under the impression...