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  1. #1
    Join Date
    Feb 2006
    Posts
    66

    Default 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. #2
    Join Date
    Feb 2012
    Location
    New York
    Posts
    744

    Default 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

  3. #3
    Join Date
    Jun 2004
    Location
    Branford, CT 06405
    Posts
    3,670

    Default 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

  4. #4
    Join Date
    Jun 2004
    Location
    St Louis, Mo for the past 25 years
    Posts
    7,558

    Default 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.

  5. #5
    Join Date
    Dec 2005
    Location
    Michigan
    Posts
    7,535

    Default Re: Lolly column longevity

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

  6. #6
    Join Date
    Jun 2004
    Location
    Branford, CT 06405
    Posts
    3,670

    Default Re: Lolly column longevity

    Concrete Filled
    Take Care

    Jim

  7. #7
    Join Date
    Nov 2004
    Location
    Boston, MA
    Posts
    4,824

    Default 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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