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Pier supporting steel

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

  1. Dereekoo

    Dereekoo

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    Since it can take 600kN its irrelevent
     
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  3. Dereekoo

    Dereekoo

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  4. ^woody^

    ^woody^

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    Trouble with attaching piers and attaching messages? :cautious:
     
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  5. Dereekoo

    Dereekoo

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    2 pints and 2JD and cokes
     
  6. tony1851

    tony1851

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    How do you know it could take 600kN?
     
  7. itsnotplumb

    itsnotplumb

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    Here it is. A red X marks the spot. There is a block wall just below on the picture that could be built into?
     
  8. tony1851

    tony1851

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    I would say to your SE "you cannot be serious!!!"

    The 152 x 89 will be carrying very little weight and would not need a pier that size. In fact, you could do away with that pier entirely as follows:
    Instead of putting in two (heavy) pre-cast concrete lintels, put in one 203 x 203 x 46 (with a wider plate tack-welded on top if it is supporting a cavity wall rather than a 9" wall).
    Run the steel beam on to a decent length of padstone (say 300mm) and seat the 152 x 89 on the bottom flange. Voila - no pier!
     

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  9. itsnotplumb

    itsnotplumb

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    I think youre talking about beam5 blue X? The architect forgot!! to draw that wall on the proposed plan and that threw the S/E a bit. I explained to him that the wall behind the stairs was staying and can we make beam 5 shorter and put beam 5 on that.

    The pier/column Im stuck on is the red X. Or am I misunderstaning you?
     
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  11. tony1851

    tony1851

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    Sorry, my mistake -I misunderstood.
    If the short retuen wall to the cupboard(?) is non-structural, then a 215 x 215 or 215 x 330 brick pier would be fine, depending on the load the beam is carrying, and assuming the reaction from the beam could be centered over the padstone.
     
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  12. Dereekoo

    Dereekoo

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    340 x 215 x7/1000
     
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  13. jeds

    jeds

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    Make sure your PI insurance is well up to date.
     
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  14. itsnotplumb

    itsnotplumb

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    Ok thanks. On a new 600x600x400 pad. Unfortunately the existing Foundation there is only about 300mm wide so there a bit of extra work I reckon.
    Well it's it's our own house so I'm not sure if Pl is any good. Although it would help with the hire in plant insurance. I was thinking of starting a thread on another forum for suggestions as to what insurances are suitable.The house insurance is is about £150 extra as I declared there's building works going on. I don't think that covers us from the start of this wall down business until it's signed off by the BCO. And I doubt any damage caused during works is covered either.
     
  15. tony1851

    tony1851

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    Slenderness ratio?

    small-area reduction?

    Partial safety factor?

    Characteristic compressive strength? (Won't be 7)
     
    Last edited: 16 Oct 2021
  16. ^woody^

    ^woody^

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    Sack your engineer and employ Isambard. (y)
     
  17. tony1851

    tony1851

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