Lateral-Torsional Buckling (AISC 360)

[@sallyisaac9354]

Is it applicable to aluminium profiles?

[@calcbook]

This is using AISC which is explicitly for steel.

[@ahmadramadanwahbeh1071]

hello sir, From where you get rts and if there is a formula couls you please write it there

[@calcbook]

hi @ahmadramadanwahbeh1071
For standard shapes as shown in the video, rts comes from Shapes Database put out by AISC
For custom shapes, rts is calculated as described in the user notes of Chapter F of AISC360
The Show-Your-Work for rts is shown on the "General" tab in CalcBook by expanding the Geometric & Material Properties section.
Hope this helps!