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Thread: Model soil stiffness for slab on ground design

  1. #1
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    Default Model soil stiffness for slab on ground design

    Not sure if I can model soil stiffness on an area using Robot.

    I know I can click on the "support" icon then click on "New" then "Support Definition" appear.

    So I click on "Elastic" menu ? then click on 'Elastic Coefficient" Button to define the building soil, then choose "Raft foundation" with dimension 1mx1m.
    Then choose the soil layer, I have Kz (kN/m3) for soil stiffness. Is it this value apply for the node or area I click on the model ?

    I try this and it seem applty on the edges and nodes not on the whole slab area

    Thanks.

  2. #2
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    Default Re: Model soil stiffness for slab on ground design

    click on FE thickness icon , New ,Parameters of foundation elasticity and then you can set springs on all 3 directions

  3. #3
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    Default Re: Model soil stiffness for slab on ground design

    Yes, I think that is better if you define soil elasticity directly in the surface FE thickness parameters. This way you will be able to display soil stresses. If you do it through support parameters i think that this is not possible.

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