Function
Modify post-tension tendon profiles and copy or move tendons in both the horizontal and vertical planes.
Call
From the Main Menu
select [Post Tension] tab > [Tendon] group > [Create tendon] > [Modify Post Tension Tendon]
Input
Modify Post Tension Tendon
Click the tendon from the left pane of the list to be modified.
Tendon Name: The selected tendon profile name will be reflected.
Tendon Property: Select the defined tendon property to modify the tendon property in the selected tendon.
Tendon Prestressing: Select the defined tendon prestressing parameters to modify the tendon prestressing in the selected tendon.
Vertical
Tendon Profile
All the predefined Tendon profiles created using the Set Tendon Profile Type option will be reflected, and the user can select the profile to be modified.
User Defined
If the user-defined option is checked on, the option will allow the user to modify all the parameters of the profile using the defined profile in the same tab.
Span: Identification number of the span within the defined support line.
Span Type: Span condition assigned to the tendon profile (Both Supported / Cantilever).
Shape: Tendon profile shape assigned to the span based on the selected profile type and span configuration.
CGS_ya: Vertical distance from the top surface to the tendon at the left support location.
CGS_yc: Vertical distance from the bottom surface to the tendon at control point 'c'.
CGS_yd: Vertical distance from the bottom surface to the tendon at control point 'd'.
CGS_yb: Vertical distance from the top surface to the tendon at the right support location.
a/L: Ratio of the distance from the left end of the span to the subsequent tendon control point relative to the span length.
c/L: Ratio of the distance from the left end of the span to the 'c' control point of the tendon profile relative to the span length.
d/L: Ratio of the distance from the left end of the span to the 'd' control point of the tendon profile relative to the span length.
b/L: Ratio of the distance from the right end of the span to the subsequent tendon control point relative to the span length.
Horizontal
No.: Identification number of the tendon profile control point within the defined tendon support line.
X:The X-coordinate of the tendon profile control point.
Y: The y-coordinate of the tendon profile control point.
Offset: The horizontal offset of the tendon from the tendon support line at the selected control point. Offsets can be modified for all control points except those located at the support positions.
Apply
Click Apply to update the tendon with the modified parameters and reflect the changes in the model.
Copy/ Move
Copy : Copy the selected Tendon Profile
Move : Move the selected Tendon Profile
Translation
Select one of the following options to Copy/Move the selected Tendon Profile
Element Increment : Copy/Move the selected Tendon Profile as per the inputted increment of element number. To Copy/Move the tendon profile defined with this option, at 1, 3, 5, 7 (G1), the following conditions should be satisfied.
- The increment of each corresponding element should be identical
For example, Tendon Profile entered in element 1, 3, 5, 7 (G1) can be Copied/Moved to element 51, 53, 55, 57 (G2) because the increment is identical. On the other hand, the Tendon Profile cannot be Copied/Moved to 11, 12, 13, 14 (G3) because the increment is different for each element.
- The number of elements to Copy/Move should be the same
For example, the Tendon Profile entered in element 1, 3, 5, 7 (G1) can be Copied/Moved to G4 which has the same number of elements. On the other hand, Tendon Profile cannot be Copied/Moved to G5 since the number of elements is different.
As displayed the figure below, the length of each element does not matter while performing the Copy/Move commands.
Element Increment Option
Note
1. Element Increment option can be selected only when the Tendon Profile is defined.
2. Element Increment option is a change of element that is included in Assigned Elements and Insertion Point.
Equal Distance
Enter the absolute distance to Copy/Move the Tendon profile to a particular location. While using this option, the following conditions should be satisfied.
- At the distance inputted to Copy/Move the Tendon Profile from the initial Insertion Point of the original element, a node of the element where the Tendon Profile is to be Copied/Moved must exist. This node will define the new Insertion Point. If this node does not exist, then an error message will be displayed.
- If there is more than one element attached to the initial element, then the Tendon Profile will be assigned to the attached element that is most linear.
- If Straight/Curve type Tendon Profile is to be Copied/Moved, then the original length and number of elements should be equal to the length and number of elements at the new location.
New Assigned Element : Input new Assigned Elements and Insertion Point to Copy/Move a Tendon Profile to those elements.
Delete
Click Delete to remove the selected tendon profile.