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  1. #1
    Member Jungle Jim's Avatar
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    Mar 2013
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    Spreader Bar Compression Calculation

    Hi Folks

    How does one calculate the compression forces on the spreader bars of a bridge hammock?

    I'm interested in designing, building and testing out a minimalist bridge hammock to see how light I can make one that is safe to use.

    Jungle Jim

  2. #2

    Join Date
    Sep 2011
    Location
    Portland, OR
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    DIY Bridge: The metro
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    DIY - 11 by 9.5
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    marlin sp./whoopie
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    Grizzy Adams has created an ultralight bridge hammock and he even has a video about it! TeeDee and Grizz both have posts about the compression forces. Check their posts out.

  3. #3
    Acer's Avatar
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    Jul 2011
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    Southern Indiana Wooded Hills
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    WBRR, 35 inch dogbones
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    Grizz Adams uses 80% and 83% percent of the length of the spreader bar to determine your length of the dogbones (amsteel triangle) as I studied all of his videos and postings and found him using either equation. Hope this helps. Spreader Bar length x 80% or 83%. I use the longer dogbone length measurement just to be safe.
    2nd CAG, CAP 2-1-5 5th Marines, 1st Mar. Div.
    https://en.wikipedia.org/wiki/Combined_Action_Program

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