Torsional Resistance of structural steel shapes.

[rpierce100]

I recently had to determine the torsional stress on a structural channel (C10x15.3). I used the formula which has the torsional resistance as a factor in the equation. However I could not find a reference that listed this parameter as a property of the section. I ended up calculating the torsional resistance by hand. Does anyone know of a reference material which lists torsional resistance as part of the properties of steel sections?

 

[BAretired]

The torsional constant, J and the warping constant C_w is given in the steel handbook. Torsional stress and rotation can be calculated from that. See the attached link for further information.

BA