STAAD.Pro Help

M. To assign an enforced support

To assign a support which can have a support displacement imposed as a load, use the following procedure.

In STAAD.Pro, a special support type is used for supports that will have an imposed displacement as part of a load case. These are called "enforced" supports.
Note: If no support displacements are defined for an enforced support, then this support behaves as a fixed support (i.e., no translation or rotation). Similarly, an enforced but support behaves like a corresponding fixed but support if no support displacements are defined.
  1. Select the nodes that will have the same support condition.
  2. On the Specifications ribbon tab, select the Other Supports tool in the Supports group.
  3. Select one of the drop-down support types as follows:
    Support condition… Select the following other support…
    fixed in all degrees of freedom Enforced
    released in one or more degrees of freedom Custom Enforced

    To impose a displacement on a joint with releases (e.g., a "pinned" support), you must use a custom enforced (i.e., ENFORCED BUT) support type and define the released degrees of freedom.

    The Create Supports dialog opens to the corresponding tab.
  4. (Optional) For an enforced but support type, check the Releases for this support type.

    For example, to create a "pinned" type support, you would check the MX, MY, and MZ release options.

  5. Either:
    To… Do the following…
    add the support type to the model and assign to the current node selection click Assign.
    add the support to the model for later assignment click Add.
    The dialog closes.
You must create a load case with support displacements defined at nodes with enforced or enforced but support types assigned in order for this support type to have an effect on your model beyond behaving as a corresponding fixed or fixed but support.