Use the Advanced Link P-Delta Parameters form to specify the minor and major moments for the I End and J End of the link. Enter values in the edit boxes such that the values entered, plus the program calculated P-Delta as shear couple, equal 1 (see note below).
Minor Moment
M2 P-delta to I end of link as moment (M2I)
M2 P-delta to I end of link as moment (M2J)
Major Moment
M3 P-delta to I end of link as moment (M2I)
M3 P-delta to I end of link as moment (M2J)
Click the Update Values button to calculate the value for {M2, M3} P-delta as shear couple based on the values entered for {M2, M3} P-delta to the I end as moment plus {M2, M3} P-delta to the J end as moment, such that the three values combined equal 1, for both the Minor and Major moments.
Access the Advanced Link P-Delta Parameters form as follows:
Click the Define menu > Section Properties > Link/Support Properties command to access the Define Link Properties form.
Click the Add New Property button or highlight an existing definition and click the Modify/Show Property button to access the Link Property Data form.
Click the P-Delta Parameters Modify/Show button.