warping constant equations
 

warping constant equations
does anyone know how to calculation the warping constant (cw) for a w beam with a channel cap? this is regards to lateral torisional bending. does anyone also know how to calculate st. venents torsional constant?
aisc design guide 9, torsional analysis of structural steel
regards,
lutfi
thanks, i also found a document from the canadian institute of steel construction website. link is
i agree with lutfi, dg 9 is worth the money.