# StructuralPointSupport

## Support in node

StructuralPointSupport represents a support of the analytical model in a node. The support is defined by six separate parameters. Each parameter defines the constraint in one direction: translation in the direction of the X, Y, Z axis and rotation around the same axes. A nodal support is oriented in the global co-ordinate system.

![](https://2984879901-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FP3f3I86mz7TGPX0pWLAB%2Fuploads%2Fgit-blob-d5113700b0e5c17998b20580030a26f06ba54345%2F19_structuralpointsupport.png?alt=media)

### Specification in the excel

| Name of the column header | Type of data |                                                                               Value example or enum definition                                                                               | Required value                                                                   | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| ------------------------- | ------------ | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | -------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Name                      | String       |                                                                                              Sn6                                                                                             | yes                                                                              | Human readable unique name of the support                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Type                      | Enum         |                                                                 <p>Fixed<br></p><p>Hinged</p><p>Sliding<br></p><p>Custom</p>                                                                 | no                                                                               | Type of constraint support in general. Has just informative value. Actual boundary conditions are set per transition/rotation per direction.                                                                                                                                                                                                                                                                                                                                 |
| Node                      | String       |                                                                                              N5                                                                                              | yes                                                                              | The name of the node to which is point support related                                                                                                                                                                                                                                                                                                                                                                                                                       |
| ux                        | Enum         |   <p>Rigid<br><br>Free</p><p><br>Flexible</p><p><br>Compression only</p><p><br>Tension only</p><p><br>Flexible<br>compression only</p><p><br>Flexible tension only</p><p><br>Non linear</p>  | yes                                                                              | <p>Translation in X direction.<br>Free - That is it imposes no constraint in the direction.</p><p>Rigid - The support in fully rigid in the specified direction.</p><p>Flexible - The support is flexible (elastic) in the specified direction. Parameter Flexible can be linear only, non-linearity is not supported. Compression only acts only under compression. If the support gets under tension it stops acting. Tension only support acts only under tension.</p>    |
| uy                        | Enum         |   <p>Rigid</p><p><br>Free</p><p><br>Flexible</p><p><br>Compression only</p><p><br>Tension only</p><p><br>Flexible compression only</p><p><br>Flexible tension only</p><p><br>Non linear</p>  | yes                                                                              | <p>Translation in Y direction.</p><p>Free - That is it imposes no constraint in the direction.</p><p>Rigid - The support in fully rigid in the specified direction.</p><p>Flexible - The support is flexible (elastic) in the specified direction. Parameter Flexible can be linear only, non-linearity is not supported. Compression only acts only under compression. If the support gets under tension it stops acting. Tension only support acts only under tension.</p> |
| uz                        | Enum         | <p>Rigid</p><p><br>Free</p><p><br>Flexible</p><p><br>Compression only</p><p><br>Tension only</p><p><br>Flexible compression<br>only</p><p><br>Flexible tension only</p><p><br>Non linear</p> | yes                                                                              | <p>Translation in Z direction.</p><p>Free - That is it imposes no constraint in the direction.</p><p>Rigid - The support in fully rigid in the specified direction.</p><p>Flexible - The support is flexible (elastic) in the specified direction. Parameter Flexible can be linear only, non-linearity is not supported. Compression only acts only under compression. If the support gets under tension it stops acting. Tension only support acts only under tension.</p> |
| fix                       | Enum         |                                                              <p>Free</p><p><br>Rigid</p><p><br>Flexible</p><p><br>Non linear</p>                                                             | yes                                                                              | <p>Rotational stiffness around X axis. Parameter</p><p>Flexible can be linear only, non-linearity is not supported.</p>                                                                                                                                                                                                                                                                                                                                                      |
| fiy                       | Enum         |                                                              <p>Free</p><p><br>Rigid</p><p><br>Flexible</p><p><br>Non linear</p>                                                             | yes                                                                              | Rotational stiffness around Y axis. Parameter Flexible can be linear only, non-linearity is not supported.                                                                                                                                                                                                                                                                                                                                                                   |
| fiz                       | Enum         |                                                              <p>Free</p><p><br>Rigid</p><p><br>Flexible</p><p><br>Non linear</p>                                                             | yes                                                                              | <p>Rotational stiffness around Z axis.</p><p>Parameter Flexible can be linear only, non-linearity is not supported.</p>                                                                                                                                                                                                                                                                                                                                                      |
| Stiffness X \[MN/m]       | Double       |                                                                                              100                                                                                             | <p>yes, if Translation X = Flexible</p><p>yes, if Translation X = Non linear</p> | The flexibility of the support in X direction                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Stiffness Y \[MN/m]       | Double       |                                                                                              100                                                                                             | <p>yes, if Translation Y = Flexible</p><p>yes, if Translation Y = Non linear</p> | The flexibility of the support in Y direction                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Stiffness Z \[MN/m]       | Double       |                                                                                              100                                                                                             | <p>yes, if Translation Z = Flexible</p><p>yes, if Translation Z = Non linear</p> | The flexibility of the support in Z direction                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Stiffness Fix \[MNm/rad]  | Double       |                                                                                              50                                                                                              | <p>yes, if Rx = Flexible</p><p>yes, if Rx = Non linear</p>                       | The flexibility in rotation of the connection around local X axis                                                                                                                                                                                                                                                                                                                                                                                                            |
| Stiffness Fiy \[MNm/rad]  | Double       |                                                                                              50                                                                                              | <p>yes, if Ry = Flexible</p><p>yes, if Ry = Non linear</p>                       | The flexibility in rotation of the connection around local Y axis                                                                                                                                                                                                                                                                                                                                                                                                            |
| Stiffness Fiz \[MNm/rad]  | Double       |                                                                                              50                                                                                              | <p>yes, if Rz = Flexible</p><p>yes, if Rz = Non linear<br></p>                   | The flexibility in rotation of the connection around local Z axis                                                                                                                                                                                                                                                                                                                                                                                                            |
| Id                        | String       |                                                                             39f238a5-01d0-45cf-a2eb-958170fd4f39                                                                             | no                                                                               | Unique attribute designation                                                                                                                                                                                                                                                                                                                                                                                                                                                 |