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  1. deendick

    Calculating Aluminum I-Beam Strength

    I have a 24,000 pound boat being lifted by cables, bow and stern, attached to two 6inX10inX16ft aluminum I-Beams. Top and bottom flange ½ inch thick, 5/16 inch thick web. The beams flex approximately 1¼ inches from center to ends. Is this deflection acceptable/dangerous? Is this beam too small?

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