how to do a control of steel beam flange under a load?

[gmd255]

I have to control a bottom flange of a steel beam. Flange is loaded by timber beams that are carrying some insulation and some ceiling plates) - load of this is around 30 kg/m2 (0,30 kN/m2).

I have seen a similar thread on this site once upon a time and there were some talking about yielding lines but not much further. How do you guys do this? There are no steel stiffeners. Point loads from timber beams on a steel flang shouldnt be large, but I want to make a control of steel flanges and web, but I dont know what is the propr way to deal with this. Do any of you guys have some examples - calcualtions of something like this?

 

[Lomarandil]

Sorry, I'm not sure what you mean by "control" the bottom flange. It sounds like you might want to analyze the beam for the local loading condition generated by the timber beams?

If that's right, and given the light loading, I'd start by just making a reasonable approximation and seeing if that works. If you take a narrow (50mm?) section of your beam and apply load to the bottom flange (conservatively at the flange tip), is the beam flange able to carry the load back to the web with reasonably low stresses? If so -- you're in good shape, no more detailed calculations needed.

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The name is a long story -- just call me Lo.