Wind Load tab
Used to apply previously created wind load types on the structure through the means of a load case.
Wind Load tab
Used to add static wind forces per ASCE 7 and other codes.
|Select Type||Choose a previously defined wind load type from the drop down list.|
|Exposed Surface and Direction||
Specify the global direction in which the wind load is to be generated by clicking the X, Z, -X, or -Z option. When wind is generated in X direction ,the wind load is applied on the near side and when -X is chosen the load is applied on the far side as explained in the following figures. Generation in Z or -Z is similar.
|Factor||Specify the factor by which the calculated wind loads will be multiplied.|
Select this option to generate loads on open structures like highway signs or transmission towers. By default, the load generation is based on the assumption that the region between members is covered by panels (i.e., cladding). Setting this option will apply load to only the members (i.e., no cladding).
Tip: The term used here is not the same as the ASCE 7 definition of "open structure." Please use the ASCE 7 Wind Load dialog box to generate describe the enclosure classification per this code.
The following parameters are used for wind loads generated per the Russian code (SNiP).
Wind Load - Dynamic tab
Used to specify dynamic wind forces per SP 20.13330.2016.
|Wind Definition||Choose an SP 20.13330.2016 wind load definition from the drop down list.|
|Width of Building along wind dir||Effective length of the structure parallel to wind direction.|
|Wid of Building across wind dir||Effective projection of the structure facing the wind direction.|
|Ground Level||Select if the ground level is not considered (i.e., global Y = 0 is the ground level) or if it is to be specified at different Y coordinate.|
|Factor||Correction factor along specified direction.|
|Internal||Set this option to indicate an internal, or suction, wind force on the surfaces (i.e., the load direction is reversed).|
|Allow all Mode Shapes||Check this option to compute dynamic wind load vector for all mode shapes extracted from Modal Analysis provided it is within code stipulated frequency limit. When this check box is clear, the calculation takes only the first mode shape.|
|Include Orthogonal Load||Check this option to include orthogonal directions in the load case.|
|Static Wind Case||Select a previously defined primary load cases in the model.|
|Wind Direction||Select the plan direction to apply the wind force.|