How do we find the exact load bearing weight of roof trusses.
How do we find the exact load bearing weight of roof trusses.
(OP)
We need to fit a monorail and overhead crane.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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How do we find the exact load bearing weight of roof trusses.
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How do we find the exact load bearing weight of roof trusses.How do we find the exact load bearing weight of roof trusses.(OP)
We need to fit a monorail and overhead crane.
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RE: How do we find the exact load bearing weight of roof trusses.
1. Hire a structural engineer to study any original design/construction drawings of the roof trusses and supporting structure and analyze them for the new loads under current codes. Chances are that the original trusses were not designed to take the roof dead loads, the roof live loads AND the new crane loads.
2. Hire a structural engineer to design for you a load test that will provide evidence of capacity (in the US - the IBC 2000 code has a section in Chapter 17 on this - in-situ load tests)
3. Try to figure it out yourself without having proper structural knowledge and hope for the best.
I don't think No. 3 is really a good idea.
RE: How do we find the exact load bearing weight of roof trusses.
If the members or connections are overstressed, then reinforcement of those elements is required to provide adequate safety.
It is recommended that a stuctural engineer perform this type of analysis and design work.
Hopefully as built drawings are available, otherwise, quite a bit of field measurements may be required. I would also encourage a site visit by the structural engineer to see the actual truss condition and its current loading.