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Generated wind shear loads are created as separate windward loads and leeward loads in opposing directions. They can also be manually input as windward, leeward, or as the same in both directions. Shear line forces are created from the effect of windward loads on one building face added to the effect of leeward loads in the opposite face.
For straightforward building geometries, it is sufficient to apply the same loads in both directions, as the analysis in the opposite direction will yield the same shear line forces. Shearwalls internally generates loads in both directions, but outputs only one set of results if they are the same in opposing directions.
Area wind loads are converted to line loads on the diaphragm between the wall or roof surfaces receiving the wind pressure before being displayed in Plan view and used in calculations. Point wind loads are not generated by Shearwalls, but can be input to model an installation like a satellite dish.
Uniform wind loads usually represent wind loads on walls. Triangular or trapezoidal loads are used to model wind loads on gable ends or hip roofs.