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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Modifying a chimney breast structure
Hi all,
I've tried googling but I obviously haven't found the right keywords yet :-) I want to increase the size of the "builder's opening" in my chimney breast by removing a half-brick column from each side. Obviously the brick column each side supports the load of the bricks above and ideally I'd like to do the calculations to show that it's safe. But where to start? At floor level the chimney breast is 40cm brick, 60cm opening, 40cm brick and I want to end up with 30cm brick, 80cm opening, 30cm brick. Don't worry about the effect on the lintel bearing by the way as a previous owner removed it! Part of the job will be to reinstate it but obviously wider and bearing on the new reduced size structure. Can anyone help? |
#2
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Modifying a chimney breast structure
On 04/06/2014 13:53, Calvin wrote:
Hi all, I've tried googling but I obviously haven't found the right keywords yet :-) I want to increase the size of the "builder's opening" in my chimney breast by removing a half-brick column from each side. Obviously the brick column each side supports the load of the bricks above and ideally I'd like to do the calculations to show that it's safe. But where to start? At floor level the chimney breast is 40cm brick, 60cm opening, 40cm brick and I want to end up with 30cm brick, 80cm opening, 30cm brick. Don't worry about the effect on the lintel bearing by the way as a previous owner removed it! Part of the job will be to reinstate it but obviously wider and bearing on the new reduced size structure. Can anyone help? Assuming it is a normal sort of property with a two story chimney then 30 cm either side sounds OK to me, with suitable overlap for the lintel. The loads can't be that high or you would see signs of cracking above after removal of the lintel. |
#3
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Modifying a chimney breast structure
Goggle "Self corbelling"
Mornington crescent.... Jim K |
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