AD.2007-08.2.1 Wind Load Generation per ASCE 7-10
The primary change in wind load evaluation between the 2002 and 2010 editions of the ASCE 7 specification involve the method of calculating the force coefficient, Cf, for solid freestanding walls and solid signs. The formula provided in the commentary related to Figure 6-20 in the specification is used:
Cf = {1.563 + 0.008542ln(x) - 0.06148·y + 0.009011[ln(x)]2 - 0.2603·y2 - 0.08393·yln(x)}/0.85
Where:
x = B/s |
y = s/h |
To generate a wind load intensity per ASCE 7-10
- Add a wind load definition to the model.
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Select this definition in the Load & Definition dialog box and click Add.
The Add New: Wind Definition dialog box opens.
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On the Intensity tab, select the as Custom in the drop-down list and click Calculate as per ASCE-7.
The ASCE-7: Wind Load dialog box opens.
- On the Common Data tab, select 2010 as the ASCE 7 - edition.
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Specify or set the parameters needed to define the load.
Click Apply prior to selecting a different dialog tab to update the dialog for the specified parameters.
- Click OK.