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Thread: Beam capacity

  1. #1
    Associate Engineer
    Join Date
    Dec 2017
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    1

    Beam capacity

    A square tube steel 3.5 x 3.5 x .1875 thk beam would be 120" in length, and cantilevered 60". 60" would be through bolted and adequately supported/integral to a sheer wall. What would be the maximum weight at the cantilevered end without deflection?
    Thanks, bill

  2. #2
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
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    1,974
    Not being silly but zero applied load means no deflection. With the application of any load on any structural beam there will be a deflection - small but it will occur.

    What is the maximum deflection you realistically need?

    You can see equations and access deflection and stress calculators here...

    https://www.engineersedge.com/beam_calc_menu.shtml
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

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