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Pier supporting steel

Discussion in 'Building Regulations and Planning Permission' started by itsnotplumb, 14 Oct 2021.

  1. itsnotplumb

    itsnotplumb

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    Hello. Just wondering if anyone has any ideas about this? I've got to build a pier as suggested by a structural engineer. It's 7n blocks 340x215. I'm not sure if that means the longest dimension should be width or length ways in regards to the steel it's holding up.
    Also not sure if there's a right or wrong way for the bond. For example all on their side or alternating or whatever.
    I've attached a sketch of what I mean incase I've not described it will.
    Cheers.
     

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  3. ^woody^

    ^woody^

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    Suggested or specified by the engineer?:cautious:

    A, probably

    Blocks should be laid upright, and bonded into the wall they attach to, not tied
     
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  4. Davespud

    Davespud

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    Not a steel post?
     
    Last edited: 14 Oct 2021
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  5. itsnotplumb

    itsnotplumb

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    Thanks woody.
    A) would be my preference, so that would be good.

    I should have said it's an isolated pier. I meant what bond for the pier not which way to attach it.

    Yes specified.

    A post is a possibility but this way there's more room for Tolerance. IMO.
     
  6. ^woody^

    ^woody^

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    How is that an isolated pier at the end of a beam?
     
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  7. freddiemercurystwin

    freddiemercurystwin

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    It's a column.
     
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  8. itsnotplumb

    itsnotplumb

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    Do you mean that once it has a steel on it it is no longer considered isolated? Fair enough but at the point it's being built it won't have the steel sitting on it.
    I don't think I've ever heard that. Is there a technical difference between a pier and a column?
     
  9. ^woody^

    ^woody^

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    No I mean I can't fathom what sort of job would have a single beam on an isolated pier, or column.
     
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  11. itsnotplumb

    itsnotplumb

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    You mean the pier is usually attached. I see.
     
  12. tony1851

    tony1851

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    To suggest a pier of those dimensions in 7N block is nonsense. Aside from the issue of having to cut the blocks down to 340 long, the 215 dimension suggests that at least some blocks are to be laid flat, which is a no-no.

    You need to go back to the SE and ask how it is to be bonded. Alternatively, build it in concrete common brick, which would more-or-less accord with the dimensions given – ie one brick x one-and- a-half bricks.

    As for the orientation, again you need to ask the SE as this does make a difference.
     
  13. hoq

    hoq

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    I agree. I wonder ifhe may have meant to write 440x215mm and put 340 by mistake, but that still suggest laying some blocks on their side and cutting of blocks.

    Ive been thinking this. But isnt a steel post which is apparently an option just like an isolated pier?
     
    Last edited: 15 Oct 2021
  14. ^woody^

    ^woody^

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    What it is is irrelevant. What I can't picture is any isolated thing holding up a single beam in an extension situation. The OP seems to be keeping it a secret.
     
  15. jeds

    jeds

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    All this depends on the load through the pier. Is it 5kN or 50kN?
     
  16. itsnotplumb

    itsnotplumb

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    Im trying to work out how to attach things in a message and id send the drawing to you. I would put it on here but the engineer might not be happy making it public. its not in an extension though. Just removing a load bearing wall.

    Havent got a clue. The steel is 152x152x37kg/m UC 195kg. above that is a upstairs wall and bedroom floor joists sit on it. if that helps
     
    Last edited: 15 Oct 2021
  17. tony1851

    tony1851

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    Just black out your address and his name/company.
     
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