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Removing internal walls - steel advice

Discussion in 'Building' started by Anthony Ryan, 15 Sep 2019.

  1. Anthony Ryan

    Anthony Ryan

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    Hey,

    We are investigating the possibility of removing 3 internal walls (sections of walls) to make 3 small rooms into one large room.

    One 6.5 meters, Holding up floor joists and stud walls
    One 3.5 meters, No joists but a “vertical beam” that is under a roof purlin
    One 1.5 meters, Holding up a couple of floor joists

    The 2 smaller guys will be bolted into the bigger. 4 No 20mmdia BB with 10mm plate

    I've had an SE have a look. He has recommended 254*146*31 UB for the 6.5 M and
    203x102x23.1 for the 2 smaller guys.

    The 6.5 M guy will not have any upright apart from at one end by internal wall (100 * 100 * 5 SHS - see diagram)

    The steel will be going in flush to the cavity walls but sitting on padstone or lintels

    See attached diagram for some more detail.

    This might be a bit light on detail but thats basically my current knowledge.

    What I want advice on is:
    1. Are there any major stand out concerns with this?
    2. What further questions should I be asking to the SE and builder?

    Thanks!
     

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  3. Leofric

    Leofric

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    You could ask the builder what further information they require from the structural engineer in order to carry out the work.
     
  4. Anthony Ryan

    Anthony Ryan

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    Thanks Leofric. Yes, I'll do that.

    My concern is around the complexity, i.e. removing 3 sections of wall and the 6.5 M span. Would be interested in some independent
    opinions. Builder and SE admit it is slightly complex but have no major concerns i.e "all doable".
     
  5. ^woody^

    ^woody^

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    Under CDM (Construction Design and Management Regulations) the engineer and the builder have a duty to produce method statements and risk assessments to dictate how the work is to be done and done safely. And you as the client have a duty to see that they do.
     
  6. Anthony Ryan

    Anthony Ryan

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    Thanks Woody, any initial thoughts or comments on the particulars of the job. The complexity etc?
    I found it hard to find a comparable job online. Most seem to be extension knock throughs or single beam replacing an internal wall.
     
  7. tony1851

    tony1851

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    CDM regs? OP is not in the UK.
     
  8. ^woody^

    ^woody^

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    Then he should move
     
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