RAM Structural System Help

Calculating Sway State per Load Combination

The user can designate to have the program calculate the sway state for each load combination (refer to Sections 2.5.5.1 and 2.6.5). With this designation the program will calculate λcr based on the current combination for the axis of the member (refer to 3.2.3.4). If λcr is determined to be less than 10.0 the

member will be considered sway-sensitive in that axis for THAT one combination. For each load combination the sway state will be determined and may differ from other load combination sway-states.

If the user selects to have the program calculate the sway state per load combination, and if P-Delta is not run but a λcr < 4.0 is calculated, the program will issue a warning following a design-all suggesting that P-Delta be performed.