RAM Structural System Help

IS 800-07

Sidesway

With the Criteria > Sidesway command, the user can indicate whether a frame is Non-sway, Sway Sensitive, or Non-Sway on Axis. Non-Sway on Axis refers to structures that are Non-Sway in one direction but Sway-sensitive in the other. When Non-Sway on Axis is selected, the user must specify the range of member orientation, with respect to the global coordinate axes, for which the member is to be considered non-sway.

K Factor

With the Criteria > K-Factor command, major and minor effective length factors are set for the beams, columns and braces in the structure. The K factor only applies to the calculation of axial capacity for members loaded with axial load.

Modifying the K-Factor criteria after a Code Check has been performed will invalidate the results of that Code Check. The model will be redrawn on the screen in its original colors (rather than the Code Check colors) indicating that the Code Check must be re-run.

Refer to the Assign chapter for information on how this criterion can be overridden on a member-by-member basis.

Flange Bracing

With the Criteria > Flange Bracing command, the bracing condition of beams and columns is defined. Beam flanges can be braced continuously along the top flange, continuously along the bottom flange or not braced. Column flanges can be defined to be braced by the deck, by the beams that frame in within a given angle of a given column face, or not braced.

Modifying the Flange Bracing criteria after a Code Check has been performed will invalidate the results of that Code Check. The model will be redrawn on the screen in its original colors (rather than the Code Check colors) indicating that the Code Check must be re-run.

Refer to the Assign chapter for information on how this criterion can be overridden on a member-by-member basis.

Column Moments

Refer back to the AISC Criteria (Section) for a description of the Criteria > Column Moments command.

Joint

Refer back to the AISC Criteria (Section) for a description of the Criteria > Joints command.

Beams with End Connections

RAM Frame performs a check of all beams with the following end connections: Standard, Spring, Custom, Reduced Beam Section (RBS), SidePlate® , DuraFuse®, and Yield-Link®. Refer to Assign - Beam Connection Types for details.