Steel beam size
- Thread starter sami69
- Start date
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Woody,
2.5m high glass... How high a ceiling is not too low on a single storey extension - This was the max planning would approve.. Somehow , an error has been made in steel size and deflection calculation which came to light when the glass was going to be fitted. The intension was never to find a steel beam to fit at the last minute!
I now know what you are talking about (precambering the beam) and raising the beam ends. Hopefully this is now an easy fix. Piers are only .75m wide on one side & 1m on the other - one SE thinks they are not large enough to hold 240kg beam, but another thinks they are ok if reinforced with concrete.. Thanks for you advice.
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Will you two stop repeating yourselves!
Sami; aside from the debate which your post has generated on aesthetics, it also raises a point on the practical side.
In whatever field we work, too often nowadays it is easy to become immersed in software, Codes, standards, figures etc, and to forget how things look and work on the ground.
If you draw to scale an 8" beam spanning 33 feet, I think a moderately intelligent lay person might wonder if it would bend too much, even under its own weight.
One can have a degree of sympathy with the original SE - we all occasionally make mistakes - but it shows what happens if we don't keep our feet on the ground.
Hopefully you've got it sorted by now.
In whatever field we work, too often nowadays it is easy to become immersed in software, Codes, standards, figures etc, and to forget how things look and work on the ground.
If you draw to scale an 8" beam spanning 33 feet, I think a moderately intelligent lay person might wonder if it would bend too much, even under its own weight.
One can have a degree of sympathy with the original SE - we all occasionally make mistakes - but it shows what happens if we don't keep our feet on the ground.
I've lost count of the times I've drawn up a rear extension with a daft wall of glazing only for the client's to see sense and backtrack when they realise the cost of the glazing compared with the everyday practicalities. More money than sense.
Not if it's detailed correctly
A very quick calc gives around 0.11mm of lateral movement, which I don't think is enough to worry about...
Might struggle...sliding bearing would solve it...(I know it's getting complicated!)
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