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Thread: Bolt Anchor Plate Design

  1. #1
    Associate Engineer
    Join Date
    Aug 2016
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    2

    Bolt Anchor Plate Design

    I am currently having to find out how many bolts to use to anchor a steel plate to a concrete wall. I know what what size bolt I am using and I know the dimensions and weight of the plate. I am just a little confused on how to find out how many bolts to use for the plate?

    I know the bolt has a tensile strength of 14,000 lbs and a shear strength of 11,500 lbs and I know I have to find the tension on the bolts from the weight of the plate and the moments. If anyone can help with anything else I would be very grateful. Thank you.

  2. #2
    Lead Engineer Cake of Doom's Avatar
    Join Date
    Aug 2012
    Location
    UK
    Posts
    433
    The number of bolts will depend on the more on pull-out forces. The force needed to pull a bolt out of concrete tends to be quite high. After running the numbers, you may find that 2 No bolts are sufficient to resist the forces of the plate but fail the pull tests.

    TL;DR:-

    Run the numbers and see what you get.

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