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Lolly column longevity

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  • Lolly column longevity

    been looking at a series of lollycolumns supporting a finished addition over a crawl/open space with foundation on one end of the joist span and this series of lollycolumns on the other.

    it is out on the cape (the one in mass.) so there is salt air to deal with. the lollies run right into relative dry sandy soil - presumably onto some kind of footing around the frost line (which out here is probably 2 feet or less.)

    they have been in place since woodstock . . . eer about 69. painted above ground but at and below ground a good deal of spalling.

    No obvious displacement or rust through but if i took a slag hammer and started aggressively testing, not sure what i would find.

    try to see what relatively precise methods anyone might have for gauging degradation/thinning toward nothing of the outside steel and at what point to consider replacement.

    don't know if drilling small hole and looking through a magnifier is good technique and then silicone it up or . . .

    and what thickness/thinness of steel should one get worried about.

    indeed, what in your crowd sourced experience are the failure modes if there is no evidence for lateral displacement from poor drainage and freezing etc.

    thanks,

    brian

  • #2
    Re: Lolly column longevity

    How critical of a condition is it? is this a new addition and if so why wasn't the support columns evaluated at that time?

    Do you believe a catastrophic failure is possible? I'd have a structural engineer evaluate if that's the case.
    Gary

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    • #3
      Re: Lolly column longevity

      Two things to consider, are these CF lolly posts? If so, I would do nothing at this time other than a cosmetic paint touchup.

      If hollow posts excavate by hand down to the top of footing, check it out, then decide whether there is remediation required for all the posts.
      Take Care

      Jim

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      • #4
        Re: Lolly column longevity

        sounds like a job for the helical piers. Plant them alongside the old columns and then you don't have to worry about them.

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        • #5
          Re: Lolly column longevity

          Originally posted by James Eggert View Post
          are these CF lolly posts?
          What's CF?

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          • #6
            Re: Lolly column longevity

            Concrete Filled
            Take Care

            Jim

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            • #7
              Re: Lolly column longevity

              Cream Filled.
              "First we finish the game, then we’ll deal with the Armada!"

              Sir Frances Drake

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