Help with coefficient of monosymmetry of an MC Shape

[jetescamilla]

Hello,

I am having the hardest time trying to find a formula for the coefficient of monosymmetry for an MC shape. Everything I find is set up for an I-shape. If anyone has some insight into this I would appreciate it.

Thanks,

Jesse

 

[cntw1953]

??? "the coefficient of monosymmetry", what is that ???

 

[ishvaaag]

I had never heard about before. It seems it is something related to plate girder design at CSA codes or whatever, google informs me.

http://www.sigi.ca/engineering/spreadsheets/CSA_LSD_plate_girder_2009_V8.xls

listed as

0.9*d'*(2*Iyc/Iy-1)*(1-(Iy/Ix)^2)

 

[jetescamilla]

Yes I am using it in the CSA S6-06 code section 10.10.2.3. After a day of research I have found that the coefficient of monosymmetry for a doubly symmetric shape and channels in bending about its strong axis is zero. A lot of work for nothing, but now I know. Thanks for the help.

And the equation above would be used if I were using a plate girder.

 

[CTW]

Makes sense. Afterall, doubly symmetric shapes and channels are not monosymmetric.