Wind load on Open Structure

Hi,

For applying wind load, you need to first generate the Load definition and then only you can apply the same in Load cases details.

Though STAAD has ASCE 7 - 10 Wind Load generator but for Indian Code you need to manually calculate the Intensity vs. Height in respective units and add them into the Wind load definition. For open structure, you can switch on the toggle while applying these definitions in Load Case Detail.

For more information you can refer article 5.31.3 from the technical reference manual SS6 which can be downloaded using the following thread.

In case it helps, the following wiki will point you to the appropriate sections of the help that deals with wind load generation

http://communities.bentley.com/products/structural/structural_analysis___design/w/structural_analysis_and_design__wiki/27194.how-to-apply-wind-load