The slenderness checks for members in tension have been refactored to allow greater control over the limits in STAAD.Pro.

Two new parameters have been added for AISC 360-16 to control the checks made for slenderness:

• SRT specifies the method used for checking slenderness. The default is to now use the conventional method from in AISC 360-10 (using the length given by the TSL parameter). An option is also available to check per clause D1 of the specification
• TSL is available to specify the length considered for tension slenderness checks. This defaults to the analytical member length.