Portal frame properties
Portal frame properties
Select one or more portal frames and then use the Properties window to view and modify their properties.
| General | |
|---|---|
| Name | The automatically generated name. |
| User Name | Can be used to override the automatically generated name if required. |
| Autodesign | |
| All rafters | |
|---|---|
| Section | The section size |
| Grade | Steel grade |
| Design section order | The design order file from which a section size will be selected. For details of managing order files, see: Manage design section orders |
| UDA | |
|
Name Finish Class Phase Note File |
A customizable list of the attributes that can be applied to individual members and panels. |
| All columns | |
|---|---|
| Section | The section size |
| Grade | Steel grade |
| Design section order | The design order file from which a section size will be selected. For details of managing order files, see: Manage design section orders |
| Sway and drift checks | |
| Merge with stack below |
Columns are divided into stacks and walls are divided into panels at floor levels where members or slabs connect to the column/wall. For the purposes of Sway/Drift, Wind Drift and Seismic Drift checks only you can override the default stack/panel divisions by merging a stack/panel with a lower stack/panel. The length of the combined stack/panel is then used in the checks. |
| Sway/Seismic drift checks |
By default all stacks of all walls are taken into account in the calculation to determine the sway sensitivity of the building. The results of this calculation being accessed from the Review toolbar. This parameter provides a facility to exclude particular wall panels from these calculations to avoid spurious results associated with very small panel lengths. You can either clear the checkbox located under ‘All Panels’ to exclude the entire wall, or you can exclude a particular panel by clearing the checkbox located under that panel only. |
| Wind drift check, Wind drift ratio |
Wind drift is automatically checked against the specified limiting ratio, (which can be set differently for different columns). The results of this calculation are accessed from the Review toolbar. If you don’t want this check to be performed you can either clear the checkbox located under ‘All Panels’ to exclude the entire wall, or you can exclude a particular stack by clearing the checkbox located under that panel only. |
| UDA | |
|
Name Finish Class Phase Note File |
A customizable list of the attributes that can be applied to individual members and panels. |
| Support 1, 2, 3 etc. | |
|---|---|
| Name | The automatically generated name. |
| User Name | Can be used to override the automatically generated name if required. |
| Plane | Indicates the grid along which the portal frame is placed. |
| Angles (Fx/Fy/Fz, Mx/My/Mz) |
Used to specify the translational and rotational degrees of freedom in which the support acts:
|
| Translational stiffnesses (x/y/z) |
Used to specify the translational stiffness applied in a direction that is not fixed:
|
| Rotational stiffnesses (x/y/z) |
Used to specify the rotational stiffness applied in a direction that is not fixed:
|
| UDA | |
|
Name Finish Class Phase Note File |
A customizable list of the attributes that can be applied to individual members and panels. |
| Span 1, 2, 3 etc. | |
|---|---|
| In a multi-span frame rafter and column properties can be entered for a specific span, over-riding those defined at the All rafters and All columns levels. |
| UDA | |
|---|---|
|
Name Finish Class Phase Note File |
A customizable list of the attributes that can be applied to individual members and panels. |