M. To Modify Wind Parameters

To specify parameters for lateral wind loads, use the following steps.

The wind load parameters are input per the following codes:

UBC 97
IS 875-1987
ASCE7

Select Assign > Wind Parameters.
Tip: You can also double-click any of the wind load parameters in the Lateral Load dialog.

The Wind Parameters dialog opens.
Select the Design Code from the drop-down list.
Either:

Select the appropriate City in the drop-down list (recommended)

or
Type a Wind Speed value directly.
Either:

Select the Life Span (yrs) for which the building is to be designed from the drop-down list (recommended)

or
Type a Risk Coeff (K1) value directly.
Type Height Below Ground and Parapet Wall values, in the units indicated.
Type a Gust Factor value.
Select the Terrain Category from the description list.
Click OK.

You can now review the calculated wind loads by selecting Frame > Wind Effect. In the Wind Effect dialog, select the different directions to see the distributed wind intensity on each floor. Selecting a column in the table displays the wind intensity values at the top and bottom of each floor along that column.