EngDM
Structural
- Aug 10, 2021
- 598
I found a document listing different K values for various laterally restrained conditions for Gerber-Girder cantilever beams. From what I can see in the CSA S16:19 the equations for moment resistance do not depend on K, and the beam selectiont ables do not show "effective unbraced length" similar to how it is presented for the compression member tables.
I've seen others take the moment capacity based on twice the unbraced length of the cantilever, but I can't find anything that shows or explains how K influences the bending strength of the beam.
Do any of you have a reference or further insight to these systems? Even changing K in Risa doesn't change the Mr of the beam.
I've seen others take the moment capacity based on twice the unbraced length of the cantilever, but I can't find anything that shows or explains how K influences the bending strength of the beam.
Do any of you have a reference or further insight to these systems? Even changing K in Risa doesn't change the Mr of the beam.