To account for the P-Δ effects, the user has the option of either performing a p-delta analysis based on the geometric stiffness method (see the section titled "P-Delta Effects" in the Technical Notes chapter in the RAM Frame Analysis manual) or by specifying that the B2 factor be calculated and applied (amplified 1^st order analysis).

To account for the P-δ effects, the user should specify that the B1 factor be calculated and applied (amplified 1^st order analysis).

The advantage to these methods (geometric stiffness and amplified 1^st order analysis) is that they do not require an iterative analysis and allow the analysis of individual load cases, with the results combined in the load combinations (the principle of superposition can be used).