|
|
|
|
|
These are dead loads and wind uplift loads. They are applied directly to the tops of the walls along a shear line. They contribute only to the calculation of combined holddown forces at wall ends and openings. If the building is constructed such that these loads do not distribute down to these elements, then they should not be added.
They are usually entered as line loads, representing the force bearing upon a wall line. They can also be area loads, which are converted to line loads automatically using a tributary width that represents the width of floor or roof collecting the load. You can also create point loads representing concentrated mass or an installation that concentrates wind uplift forces.
Vertical loads will survive small moves of shear lines, but will be lost with major adjustments.