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Strongboy tip deflection

Discussion in 'Building' started by Simon543, 9 Jul 2012.

  1. Simon543

    Simon543

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    Searched the forum, but couldn't find anything obvious.

    I'm a weedy f***er, certainly no builder by trade, so I cranked the acrow as tight as I could go (without leaning against it that is). The strongboy plate tip bent by about 5mm away from horizontal. Certainly acrow and and SB are not going anywhere but have I overdone it?

    thanks,
    Simon.
     
  2. ^woody^

    ^woody^

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    Yes. The idea is to take the load, not lift the wall up

    The SB should be right in the joint any way, so it don't bend, not just the tip of
     
  3. Simon543

    Simon543

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    Hi Woody,

    The latter would imply the SB had been hammered in? It wasn't because the mortar is all shot to sh*t. I raked out the morter with a drill and vacuum cleaner (no way was I going to hammer it in with the state of this wall). My brick of choice (to put the SB under) is also not completely level anyhow (well, it is a bit more level now, LOL!)

    The job isn't what you'd see in any of the pretty pictures when you type 'strongboy' into google. The strongboy looks too long for what it's supposed to do (namely, support 1 skin). I guess that's to leave space for some steel. In my case I'm putting a lintel over a doorway, and I can feed it through from an adjacent room, so not an issue.

    So how much deflection do you expect? There has to be some, surely since it's a steel plate and the vertical supporting fin only goes so far in.

    regards,
    Simon.
     
  4. noseall

    noseall

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    The s.b. will deflect a fair bit if you crank the acro enough and is fairly common, so stop freaking out.

    Don't overwind the acro so much so that the deflection of the s.b. plate makes fitting the beam difficult.
     
  5. Simon543

    Simon543

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    Not freaking, just wanted to know if I might have damaged the SB. I guess I'll only know when I take it out, but that'll be at the end of the job.

    Woody says yes, I've tightened it too far, you say no, stop freaking. Any other votes or will that remain a split decision? :LOL:
     
  6. ^woody^

    ^woody^

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    You do seem to have tightened it too far, putting even more unnecessary stress on the SB, but that does not mean it is damaged or wont hold the wall up

    You can either leave it or slacken it off
     
  7. noseall

    noseall

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    Overtightening will result in damage to whatever is above the s.b.

    In some instances overwinding can be easy and in others, near impossible.

    Use common sense when winding up an acro.
     
  8. DIYnot Local

    DIYnot Local

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