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Review and modify restraints

Tekla Structural Designer
2019
Tekla Structural Designer

Review and modify restraints

By selecting the Restraints attribute in Show/Alter State you can graphically review and modify continous and discrete restraints for beams, columns, trusses and portal frames.

Tip: Graphical editing of restraints will typically be more effective than the alternative of opening the Properties dialog box for each member individually.

Review restraints

  1. Open a Review View.
  2. On the Review toolbar, click Show/Alter State.
  3. Go to the Properties window.
  4. In the Attribute list , select Restraints.
  5. Set Mode to Review. For details of the restraint type choices etc. that are presented in Review mode, see the Options overview topics below.
  6. Set the Continuous box as required:
    • Checked: shows continuous restraints, each sub-member being colour coded in accordance with the legend.
    • Unchecked: shows discrete restraints, each internal node at which other members connect being colour coded in accordance with the legend.
  7. Set the Restraint Type that you want to review.
  8. Set the Entity type that you want to review.

Toggle restraints

  1. Open a Review View.
  2. On the Review toolbar, click Show/Alter State.
  3. Go to the Properties window.
  4. In the Attribute list , select Restraints.
  5. Set Mode to Toggle. For details of the restraint type choices etc. that are presented in Toggle mode, see the Options overview topics below.
  6. Set the Entity type that you want to modify.
  7. Leave the Continuous box checked to set continuous restraints along sub-members, or uncheck it to set discrete restraints at those points where other members connect.
  8. Set the Restraint Type as required.
  9. In the model:
    • click the member at the location where want to toggle the restraint.
    • drag a box around multiple members to toggle the restraint at all valid locations within the box.
    The type of restraint at the selected location(s) changes to the next rerstraintr type shown in the legend. (Simply click again as necessary until the desired restraint type has been applied.)
  10. Continue toggling the restraints by clicking the desired members or press Esc to finish.

Set restraints

  1. Open a Review View.
  2. On the Review toolbar, click Show/Alter State.
  3. Go to the Properties window.
  4. In the Attribute list , select Restraints.
  5. Set Mode to Set. For details of the restraint type choices etc. that are presented in Set mode, see the Options overview topics below.
  6. Set the Entity type that you want to modify.
  7. Leave the Continuous box checked to set continuous restraints along sub-members, or uncheck it to set discrete restraints at those points where other members connect.
  8. Set the Restraint Type as required.
  9. Set the Restraint as required.
  10. In the model:
    • click the member at the location where want to set the restraint.
    • drag a box around multiple members to set the same restraint at all valid locations within the box.
  11. Continue setting the checks by clicking/boxing the desired members or press Esc to finish.

Options overview (US headcode)

The restraint options displayed in the Properties window depend on the Entity type filter. When this is set to either Beam , Column , or Truss Top/Bottom Member , the options are:

Command or option Description
[M]ode
  • Review - sub-members/discrete points of restraint are color coded to indicate their restraint settings
  • Toggle - clicking sub-members/discrete points of restraint toggles the applicable restraints.
  • Set - clicking sub-members/discrete points of restraint sets the selected restraint.
Continuous
  • Checked - enables the review/setting of sub-member continuous restraints
  • Unchecked - enables the review/setting of discrete restraints at those points where other members connect.
Restraint Type
The restraint type determines which page(s) of properties are being edited.
  • LTB - enables the review/setting of the check-boxes located on the Restraints (LTB) property page.
  • Compression - enables the review/setting of the check-boxes located on the Restraints (Comp) property page.
  • LTB & Compression Out of Plane - enables the simultaneous review/setting of check-boxes on both the the Restraints (LTB) and Restraints (Comp) property pages.
Restraint

When in Set Mode, this setting determines which check-boxes on the selected restraint property page are checked and un-checked.
For LTB restraint types (and Entity type Beam or Truss):
  • Top - Top flange check-box is checked, Bottom flange check-box is unchecked.
  • Bottom - Top flange check-box is unchecked, Bottom flange check-box is checked.
  • Top and Bottom - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
For LTB restraint types (and Entity Type Column):
  • Face A - Face A check-box is checked, Face C check-box is unchecked.
  • Face C - Face A check-box is unchecked, Face C check-box is checked.
  • Face A & C - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
For Compression restraint types:
  • Out of Plane - Out of plane check-box is checked, In plane check-box is unchecked.
  • In Plane - In plane check-box is checked, Out of plane check-box is unchecked.
  • Out of Plane & In Plane - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
 
For LTB & Compression Out of Plane restraint type:
  • Top & Bottom & Out of Plane - Top flange, Bottom flange, and Out of Plane are checked.
  • Top & Out of Plane - Top flange and Out of Plane are checked, Bottom flange is unchecked.
  • Bottom & Out of Plane - Bottom flange and Out of Plane are checked, Top flange is unchecked.
  • Unrestrained - Top flange, Bottom flange, and Out of Plane are checked.
Note: For each of the above, the In Plane check-box is unaffected, retaining its existing setting.

Options overview (other head codes)

The restraint options displayed in the Properties window depend on the Entity type filter. When this is set to either Beam , Column , or Truss Top/Bottom Member , the options are:

Command or option Description
[M]ode
  • Review - sub-members/discrete points of restraint are color coded to indicate their restraint settings
  • Toggle - clicking sub-members/discrete points of restraint toggles the applicable restraints.
  • Set - clicking sub-members/discrete points of restraint sets the selected restraint.
Continuous
  • Checked - enables the review/setting of sub-member continuous restraints
  • Unchecked - enables the review/setting of discrete restraints at those points where other members connect.
Restraint Type
The restraint type determines which page(s) of properties are being edited.
  • Lateral - enables the review/setting of the check-boxes located on the Lateral restraints property page.
  • Strut - enables the review/setting of the check-boxes located on the Strut restraints property page
  • Lateral & Strut Minor - enables the simultaneous review/setting of check-boxes on both the the Lateral restraints and Strut restraints property pages.
Restraint

When in Set Mode, this setting determines which check-boxes on the selected restraint property page are checked and un-checked.
For Lateral restraint types (and Entity type Beam or Truss):
  • Top - Top flange check-box is checked, Bottom flange check-box is unchecked.
  • Bottom - Top flange check-box is unchecked, Bottom flange check-box is checked.
  • Top and Bottom - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
For Lateral restraint types (and Entity Type Column):
  • Face A - Face A check-box is checked, Face C check-box is unchecked.
  • Face C - Face A check-box is unchecked, Face C check-box is checked.
  • Face A & C - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
For Strut restraint types:
  • Major - Major check-box is checked, Minor check-box is unchecked.
  • Minor - Minor check-box is checked, Major check-box is unchecked.
  • Major and Minor - both check-boxes are checked.
  • Unrestrained - both check-boxes are unchecked.
 
For Lateral & Strut Minor restraint type:
  • Top & Bottom & Minor - Top flange, Bottom flange, and Minor are checked.
  • Top & Minor - Top flange and Minor are checked, Bottom flange is unchecked.
  • Bottom & Minor - Bottom flange and Minor are checked, Top flange is unchecked.
  • Unrestrained - Top flange, Bottom flange, and Minor are checked.
Note: For each of the above, the Major check-box is unaffected, retaining its existing setting.

Portal Frame options (US headcode)

The restraint options displayed in the Properties window when the Entity type filter is set to Portal Frame are:

Command or option Description
[M]ode
  • Review - discrete points of restraint are color coded to indicate their restraint settings
  • Toggle - clicking discrete points of restraint toggles the applicable restraints.
  • Set - clicking discrete points of restraint sets the selected restraint.
Restraint

When in Set Mode, this setting determines which check-boxes on the restraint property pages are checked and un-checked.

Rafters:
  • Torsional - Top flange, Bottom flange, and Out of Plane are checked.
  • Outer - Top flange is checked, Bottom flange is unchecked.
  • Inner - Top flange is unchecked, Bottom flange is checked.
  • Unrestrained - Top flange, Bottom flange, and Out of Plane are unchecked.
Columns:
  • Torsional - Face A, Face C, and Out of Plane are checked.
  • Outer - Face A is checked, Face C is unchecked.
  • Inner - Face A is unchecked, Face C is checked.
  • Unrestrained - Face A, Face C, and Out of Plane are unchecked.
Note: For each of the above, any checkbox not specifically mentioned retains its existing setting.

Portal frames options (other head codes)

The restraint options displayed in the Properties window when the Entity type filter is set to Portal Frame are:

Command or option Description
[M]ode
  • Review - discrete points of restraint are color coded to indicate their restraint settings
  • Toggle - clicking discrete points of restraint toggles the applicable restraints.
  • Set - clicking discrete points of restraint sets the selected restraint.
Restraint

When in Set Mode, this setting determines which check-boxes on the restraint property pages are checked and un-checked.

Rafters:
  • Torsional - Top flange, Bottom flange, and Minor are checked.
  • Outer - Top flange is checked, Bottom flange is unchecked.
  • Inner - Top flange is unchecked, Bottom flange is checked.
  • Unrestrained - Top flange, Bottom flange, and Minor are unchecked.
Columns:
  • Torsional - Face A, Face C, and Minor are checked.
  • Outer - Face A is checked, Face C is unchecked.
  • Inner - Face A is unchecked, Face C is checked.
  • Unrestrained - Face A, Face C, and Minor are unchecked.
Note: For each of the above, any checkbox not specifically mentioned retains its existing setting.
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