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The program performs the design check for hold-down capacity at each wall or opening end. This is only a design check on a hold-down selected for the hold-down location; the program does not cycle through various possibilities to find a hold-down with sufficient capacity.
Vertical elements
There is currently no mechanism for entering hold-downs at the base of vertical elements transferring a force from an upper story via a vertical element to a location on a lower story that is not a wall or opening end on that story, so there no hold-down design for those hold-down locations. The Hold-down Design table says "refer to upper level" for these hold-downs, as the force they resist is the same as the hold-down specified at the segment end on an upper level.
Non-wood or Proprietary Walls
There is no hold-down device assigned to Non-wood/Proprietary walls and no hold-down design for these walls.
Design Cases
For each design case (wind, seismic, and both force directions), the program checks the capacity of the hold-downs at each hold-down location against the combined factored uplift force.
Design Results Output
Refer to Design Results Output for a description of the output tables showing hold-down design.