If I have a floor load of 2.8kn, what section steel beam will I need to span 8.85m ?
Answer:
Let's assume by floor load you mean 2.8kN/m2.
Now I need to know the span in both directions between supports.
I'll also need to know where the supports are in the span, and how the beam is attached to the supports.
Then I'll need to know how, where and how long the beam is used. This affects the type of calculation and the safety factor.
But if this is just a paper excercise,
www.engineersedge.com has some good free beam analysis programs you can download.
But you'll need some steel tables to make much sense of it.
If this is real, it's FAR too big a job without an engineer.
eg. for a normal house you'd be looking at 1.5kN/m2 with a 3m x 3m load area.
I'm struggling to do this much with the information provided, sorry.
2.8kN per what? you say "floor load" so one might think per square meter, if that is the case, we need another dimension in addition to the span to determine the load on the beam. If you mean a beam load of 2.8kN/m , or a total beam load of 2.8kN, then you should say so. In any case, if you hire an engineer he will ask the appropriate questions.
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