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Elevation distributed loads, which vary linearly between two points of different elevation (i.e. the z-coordinate of each point differs) along a boundary, can be applied to edges or faces with the Add Loads option and specifying Elevation Load as the Load Type. The load distribution is treated as triangular (zero at one end) or trapezoidal (different non-zero values at each end) based on the user-specified Top Magnitude/Delta and the elevation of the boundaries.

Elevation Distributed Load on vertical slope face

To apply an Elevation distributed load by projecting a region onto geometry:

• enter the Top Magnitude / Delta of the load
• specify the load Orientation (e.g. Normal, Local +x, Local +y, Local +z, Vector (x,y,z), or Trend/Plunge)
• specify location and orientation of the load region

4. When finished specifying the load properties and the preview of the applied load, select OK. The Elevation distributed load will be applied to the selected face(s), as indicated by the display of red arrows and the magnitude.
5. Check the direction of the arrows and the magnitude, to make sure that this is the load you wished to apply. If there is a mistake, you can select Undo and repeat the above steps to apply the correct load, or select and edit the load using the Properties Pane to change the load parameters.

To apply an Elevation distributed load to a face:

2. Select Faces Selection as the Selection Mode.
3. Select face(s) on which to apply the load.
• enter the Top Magnitude / Delta of the load
• specify the load Orientation (e.g. Normal, Local +x, Local +y, Local +z, Vector (x,y,z), or Trend/Plunge)

7. When finished specifying the load properties and the preview of the applied load, select OK. The Elevation distributed load will be applied to the selected face(s), as indicated by the display of red arrows and the magnitude.
8. Check the direction of the arrows and the magnitude, to make sure that this is the load you wished to apply. If there is a mistake, you can select Undo and repeat the above steps to apply the correct load, or select and edit the load using the Properties Pane to change the load parameters.

To apply an Elevation Load to an edge (line load) repeat the Steps 1 to 7, but use Edges Selection to select the edge(s) on which to apply the load.

## Top Magnitude / Delta of Load

The Top Magnitude is the magnitude of the load that will be applied at the top, or highest point, of the selected boundary (edge or face). The Delta is the change in the load magnitude per unit decrease in elevation. NOTE:

• Delta = 0 means that the magnitude of the load does not change with a decrease in elevation (z-coordinate). This type of Elevation Load is equivalent to a Uniform Load.
• Delta > 0 means that the magnitude of the load increases as the elevation of the boundary decreases (i.e. the load magnitude at the bottom of the boundary is greater than the Top Magnitude).
• Delta < 0 means that the magnitude of the load decreases as the elevation of the boundary decreases (i.e. the load magnitude at the bottom of the boundary is less than the Top Magnitude).