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To Whom It May Concern, I am doing a remodel and adding some walkways and stairs to an existing building. In order to do this I have to analyze the existing building. The bracing in the existing building is Ordinary Concentric Braced Frames. The problem I see is that the gusset plate that...

Mr. Warose, The justification for the use of the constant force equation for the magnification factor is show on page 100 part D, and I agree with their logic. I am trying to understand when one would use the Rotating mass equation for the magnification factor. Thank You

Mr. Warose, In the reference material A/O'N/P example 2 on sheet 99 is the "Foundation Block for Centrifugal Machine" and it uses the constant force equation for the magnification factor. I am wondering when one would use the rotating mass excitation equation from table 1-4. Thanks Chad C.

To Whom It May Concern, Is anyone familiar with the Design of Structures and Foundations for Vibrating Machines by Suresh Arya, Michael O'Neill, and George Pincus? In the examples the equation used for the magnification factor is for the Constant Force Excitation. Ref Table 1-4 Can anyone...

To Whom it May Concern. I have a very specific question about "Design of Structures and Foundations for Vibrating Machines" by Suresh Arya, Michael O,Neill and George Pincus. on page 13 Table 1-4 r is defined as the Frequency of the Excitation force/ the Natural Circular Frequency. In other...