Last Updated: 20202022.511
NOTE: The above
Wind
Basic Wind Speed (V): corresponds to a 3-sec gust speed at 33 ft (10 m) above the ground in Exposure Category C. Will be affected by patching for Metric vessels, the conversion from old to current will be to multiply the old value by 0.2778 and then round up to the nearest whole number. Units on form will be mph in Customary and m/s in Metric.
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Fa: short-period site coefficient (at 0.2 s-period) to be used if the value cannot be determined by . The greater of this value or that returned from tables in the referenced code will be used. Note that some cases for Site Class E and F do NOT have values in the codes, so it is critical a value is input in these cases.
Fv: long-period site coefficient (at 1.0 s-period) to be used if the value cannot be determined by The greater of this value or that returned from tables in the referenced code will be used. Note that some cases for Site Class E and F do NOT have values in the codes, so it is critical a value is input in these cases.
Skirt is sensitive to buckling: This checkbox only applies to Skirt supports. And if checked it will adjust the CR-I value to a greater value in some cases resulting in a higher load value.
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