Universal beam calculation
Posted: Jan 18, 2006 10:57 AM
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Hi, I'm replacing a section (2.2m) of first floor internal suporting
wall with a universal beam (2.5m).
The beam will have to support floor joists, p/b, flooring only (no
walls etc.)
Rooms above whose floor joists will be supported by the universal beam
(ub):
1. have an area of 13.6 m2
2. dead load (0.75 kN/m2) + live load (1.5 kN/m2) = 2.25 kN/m2
3. load is 13.6 x 2.25 = 30.5 kN
4. beam only suports half the load (one end of joists supported by wall
so load is 0.5 x 30.5 = 15.25 kN

I've looked on the Corus site at

http://www.corusconstruction.com/en/...ctions/joists/

and there are lots of specs for different sized universal beams.
Looking at a 152(h) x 89(w) x 16(kg/m) beam the spec is:
1. buckling resistance for a 2.5m ub = 19.8 kNm
2. Compression resistance for a 2.5 m ub: Pcx = 529 kN, Pcy = 222 kN
etc.

Please can someone tell me what are the factors I need to look at to
meet my loading requirements.

Thank you,

Neil