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Goal-post frame on existing strip foundation

Discussion in 'Building' started by lrocco, 8 Sep 2021.

  1. lrocco

    lrocco

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    Hi All,

    I would appreciate some advice on whether there is any situation where a goal-post frame can be fixed to an existing strip foundation.

    This particular situation is an existing mass concrete strip foundation 600w x 600d, with an axial factored load from each column c90kN. No formal SI, but the ground is deemed to be medium dense sand and gravel with a presumed safe bearing capacity c200kn/m2.

    My concerns are:
    • bending/shear of existing foundation
    • differential long-term settlement
    My thanks in advance
     
  2. ^woody^

    ^woody^

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    There is every situation when it can.

    Your concerns don't occur
     
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  4. lrocco

    lrocco

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    Thanks for your response.

    I would have thought bending would occur and reinforcement would be required in most cases. Effectively the strip would be acting like a combined footing
     
  5. ^woody^

    ^woody^

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    Perhaps in bridges or suchlike, but not the back of the house under the new patio doors
     
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