I have a freely supported beam made of two joined standing 45x120 C24 with a span of 3.1m.
I would like to use these for lifting, and I'm wondering how much they can handle.
I wish to lift 80cm from the edge and lift 500kg at each point, can they handle that? What is the breaking point?
Your joined beams, 2 pieces of 45x120, correspond approximately to 1 piece of 45x170. A 45x170 C 24 can handle a maximum bending moment of 3.2 kNm according to the Wood Guide. This corresponds to a point load in the middle of about 4 kN (just over 400 kg) or a uniformly distributed load of about 2.5 kN/m (just over 250 kg/m). Your joined beam is not sufficient for the desired task. To handle it, you need to use 2 pieces of 45x170 C 24 or 1 piece of 45x220 C 30.
Click here to reply
Vi vill skicka notiser för ämnen du bevakar och händelser som berör dig.
