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Builder installed RSJ - Padstone question

  • 30-10-2021 11:22pm
    #1
    neeb03
    Registered Users, Registered Users 2 Posts: 58 ✭✭


    Hello everyone,

    Sorry if this was asked before but we have taken down part of a load bearing wall (removed internal door) and opened it to 1.8m opening.


    We had the builder install a 2.05m 100x100 rsj (we were told by an engineer we needed only 76x76 but went with the slightly larger). The builder set the rsj onto the existing block work with some slate and cement for levelling, is this ok or should he have used pad stones?

    Your opinions would be greatly appreciated.



Comments

  • #2
    neeb03
    Registered Users, Registered Users 2 Posts: 58 ✭✭neeb03


    Anyone?



  • #3
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    we are not allowed give structural advice


    pleas read the forum charter


    1.5 Structural items . Issues relating to the specification of structural components is prohibited. Any queries in this regard need to be dealt with by an architect/engineer privately.



  • #4
    muffler
    Registered Users, Registered Users 2 Posts: 46,550 ✭✭✭✭muffler


    Agree with the above.

    @neeb03 I think you know the answer otherwise you wouldn't have asked the question.



  • #5
    neeb03
    Registered Users, Registered Users 2 Posts: 58 ✭✭neeb03


    Many thanks, I never realised. Thank you



  • #6
    Staleturnips
    Registered Users, Registered Users 2 Posts: 148 ✭✭Staleturnips


    https://www.boards.ie/discussion/2058215678/builder-installed-rsj-padstone-question

    The way you have described the install is an old school method but very commonly used, certainly in the past but perhaps less so now.

    It doesn't sound like there is an structural design to reference against, yes pre-cast padstone are typically specified under UB's but that doesn't necessarily mean its required in this instance, have your Engineer inspect it and action accordingly.



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  • #7
    Gumbo
    Moderators, Society & Culture Moderators Posts: 40,349 Mod ✭✭✭✭Gumbo


    https://www.boards.ie/discussion/2058215678/builder-installed-rsj-padstone-question

    One I don’t get is that the engineer specified one thing and you install another. Yes you went bigger, but that means the weight of the beam has also increased and the engineer is now unaware of the increased self weight to factor into the calculations.


    best to get your engineer on site to inspect and cover your backside.



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