I will be happy to pay for this,I want to knock out a chimney stack n put gallows brackets in the loft (1930's semi). The council said they want a calculation to prove the brackets, so I'm looking pretty vacant and scratchin me head!
structural engineer calculation needed
- Thread starter DIYedboy
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I think you will be struggling to get any meaningful calcs done for gallows brackets.
The bracket will be bolted back to the brickwork, but putting a figure to the 'pull-out' resistance of the bolts will be well-nigh impossible.
And that is assuming that gallows brackets are acceptable in principle; there is the overall stability issue to consider.
If the Building Inspector has asked for calcs for the brackets, that means nothing. Once any figures are passed to the council's engineers for checking, they may well reject the design on the basis of a lack of stability.
Councils are increasingly refusing gallows brackets (or only accepting them in very specific circumstances).
The bracket will be bolted back to the brickwork, but putting a figure to the 'pull-out' resistance of the bolts will be well-nigh impossible.
And that is assuming that gallows brackets are acceptable in principle; there is the overall stability issue to consider.
If the Building Inspector has asked for calcs for the brackets, that means nothing. Once any figures are passed to the council's engineers for checking, they may well reject the design on the basis of a lack of stability.
Councils are increasingly refusing gallows brackets (or only accepting them in very specific circumstances).
If your council is not against gallows brackets in principle, that's a start.
The only way to check exactly what calculations they would be looking for is to first ask the local inspector. He will probably say 'er, you'd better speak with our engineer, he'll tell you'.
Then you get the engineer's phone number and ask him. Note down what he says, and then find a local SE, and put the requirements to him.
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Been back to the council, sadly it seems I'm wrong again, they don't like gallows brackets and want a beam inserted!! my girlfriend did the contacting when I was at work, so that facts have been lost in the 'translation'. Am I to assume they want me to sit an RSJ on top of the brick/block wall between bed1 and bed2 run this under the front of the chimney sack and sit the other end on the 9" rear wall?
Gallow Brackets are sometimes allowed but there is a lot of conditions that have to be met.
Google shepway.gov chimney stack
Or see www.hyltonchimneys.co.uk
ask the above,they have more knowledge than your council !
Google shepway.gov chimney stack
Or see www.hyltonchimneys.co.uk
ask the above,they have more knowledge than your council !
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