Notch in girder flanges

[ATHS]

Hello,

I am putting a calc together for a conduit hanger where the conduit are fitted b/w W beams as shown. Flanges will have a notch to accommodate the conduits for snug fit. Can someone point me as to how I can find the capacities of W Beam with a notch in flange? The beam will bent about it's minor axis.

 

[OSUCivlEng]

You could calculate the section properties by neglecting the depth of the notch across the entire length of the flange.

 

[BridgeSmith]

I would take the easy way and ignore the web, giving me 2 plates with a depth that's the minimum flange width at the notches.