# RelConnectsSurfaceEdge¶

**Hinges on 2D member edge**

A connection of two slabs (2D members) may be modelled as a fixed one or a hinge may be inserted to create a pinned connection. Three configurations of slab hinge are allowed: rigid, free, flexible. Under any configuration, all translations are fully transferred from one slab to the other. If there is no hinge, the connection is rigid.

Warning

This object is referring to the edge of StructuralSurfaceMember. Only for this object the indexing of edges starts with “0”. All other objects are referencing with “1” based indexing.

## Specification in excel¶

Column header |
Data type |
Example / enum definition |
Required |
Description |
---|---|---|---|---|

Name |
String |
Sn6 |
yes |
Human readable unique name of the support |

2D Member |
String |
S3 |
yes |
The name of the surface member to which is hinge related |

Edge |
Integer |
0 |
yes |
The index of edge of the surface member. The index starting with 0. The order is according to order of “edges” property at StrucutralSurfaceMember. |

ux |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Translation in X direction. |

uy |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Translation in Y direction. |

uz |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Translation in Z direction. |

fix |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Rotational stiffness around X axis. |

fiy |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Rotational stiffness around Y axis. |

fiz |
Enum |
Free Rigid Flexible Nonlinear |
yes |
Rotational stiffness around Z axis. |

Stiffness X [MN/m2] |
Double |
100 |
yes, if ux = Flexible or Nonlinear |
The flexibility of the connection in X direction |

Stiffness Y [MN/m2] |
Double |
100 |
yes, if uy = Flexible or Nonlinear |
The flexibility of the connection in Y direction |

Stiffness Z [MN/m2] |
Double |
100 |
yes, if uz = Flexible or Nonlinear |
The flexibility of the connection in Z direction |

Stiffness Fix [MNm/rad/m] |
Double |
50 |
yes, if fix = Flexible or Nonlinear |
The flexibility in rotation of the connection around local X axis |

Stiffness Fiy [MNm/rad/m] |
Double |
50 |
yes, if fiy = Flexible or Nonlinear |
The flexibility in rotation of the connection around local Y axis |

Stiffness Fiz [MNm/rad/m] |
Double |
50 |
yes, if fiz = Flexible or Nonlinear |
The flexibility in rotation of the connection around local Z axis |

Function ux |
String |
Nonlin fun 1 |
yes, if ux = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Translation |

Function uy |
String |
Nonlin fun 1 |
yes, if uy = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Translation |

Function uz |
String |
Nonlin fun 1 |
yes, if uz = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Translation |

Function fix |
String |
Nonlin fun 2 |
yes, if fix = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Rotation |

Function fiy |
String |
Nonlin fun 2 |
yes, if fiy = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Rotation |

Function fiz |
String |
Nonlin fun 2 |
yes, if fiz = Nonlinear |
Reference to object NonlinearFunction. Nonlinear function must be of type Rotation |

Coordinate definition |
Enum |
Absolute Relative |
yes |
Selects the coordinate system that is used to define the length of the hinge. Relative means without units. To define length of the hinges in meters input absolute |

Origin |
Enum |
From start From end |
yes |
Specifies the origin of the coordinate system used for the definition of the length of the hinge |

Start point [m] |
Double |
value in meters for Coordinate definition = Absolute 0.0 value in percentage for Coordinate definition = Relative 0.0 |
yes |
Defines the position of the start point of the hinge in relative or absolute coordinates Units in meters [m] |

End point [m] |
Double |
value in meters for Coordinate definition = Absolute 5.25 value in percentage for Coordinate definition = Relative 1.0 |
yes |
Defines the position of the end point of the hinge in relative or absolute coordinates Units in meters [m] |

Parent ID |
String |
67b35d84-3d04-47aa-aa4a-dc1263982320 |
no |
Is filled for objects created be dividing curved geometry to series of straight line objects. To ensure successful round trip of segmented objects and their related objects, Parent ID needs to be present in both directions. |

Id |
String |
39f238a5-01d0-45cf-a2eb-958170fd4f39 |
no |
Unique attribute designation |