The program now allows you to specify the direction for wind uplift loads, that is, the lateral direction of wind force with which the uplift load is associated. Therefore you can enter uplift loads that correspond to the uplift coefficients for the windward and the leeward surfaces in NBC Figure I-7 for low rise loads and Figure I-15 for all heights. Previously the one wind uplift load applied to a surface would be used for both the windward and the leeward cases. This involved the following program changes:

Input

The Wind direction input is now enabled and allows you to choose either direction or Both, similar to a Wind shear load.

Graphics

In the Plan View and Elevation View, the wind uplift force is only drawn if the direction of the uplift force matches the direction of load direction selected in the Show menu.

Hold-downs

Different uplift forces are used to create combined hold-downs at the same location for different force directions. These appear in the Hold-down Design table.

Output

A Direction column was added to the Uplift Loads table,