2.19.9 Prestressed reinforcement in Tekla Structures
Tekla Structures v21.1
Tekla Structures v2021
Create a concrete beam of 2000 mm length and profile value of 600*1000
Tekla Structures v21.1
Tekla Structures v2021
Enable the "Add points on line" tool which splits a segment
into a definite number of equal parts. Indicate the number of points equal
to 3.
Subsequently indicate the segments to be split into parts. Refer to the
Tekla Structures v21.1
Tekla Structures v2021
Go to the "Reinforcement Strand" properties menu and set out
the "Number of cross-sections" value at 1. Exactly this parameter
defines the tool's functionality.
Tekla Structures v21.1
Tekla Structures v2021
The algorithm for using the "Strand" tool for creating a reinforcing
Make sure all operations are canceled or press the Esc key.
Enable the "Mesh" tool.
Select the concrete object to be reinforced.
Indicate the points defining the strand's starting position.
Tekla Structures v21.1
Tekla Structures v2021
5. Press the mouse wheel button.
Tekla Structures v21.1
Tekla Structures v2021
6. Indicate the first point defining the first bar's length and direction.
7. Indicate the second point defining the second bar's length and
8. To finalize indicating points, press the mouse wheel button.
9. Press the Esc key to disable the tool.
Select the reinforcing bars. You can clearly see their starting and endpoints.
Tekla Structures v21.1
Tekla Structures v2021
Thus applying the above algorithm you can create multiple strands of the
In case there is a requirement to create strands of various lengths,
then it is necessary to indicate the "Number of cross-sections"
value equal to the different length values quantity.
Tekla Structures v21.1
Tekla Structures v2021
Create 2 strands of different length values. Delete the strands created
in the previous case study. In the properties menu set out the "Number
of cross sections" value at 2.
Tekla Structures v21.1
Tekla Structures v2021
The algorithm for creating strands of different length values is as follows:
Make sure all operations are canceled or press the Esc key.
Enable the "Mesh" tool.
Select the concrete object to be reinforced.
Indicate the starting points of the strands.
Press the mouse wheel button.
Indicate the endpoints of the strands.
Press the mouse wheel button.
Press the Esc key to disable the tool.
Tekla Structures v21.1
Tekla Structures v2021
Create complex strands by indicating 6 points for each strand. Use the
Tekla Structures v21.1
Tekla Structures v2021
Enable the "Add points on line" tool and configure it to create
Tekla Structures v21.1
Tekla Structures v2021
Proceed to indicate the segments at the concrete object's sides as
Tekla Structures v21.1
Tekla Structures v2021
Go to the "Strand" properties menu and set the "Number
Tekla Structures v21.1
Tekla Structures v2021
The algorithm for creating a reinforcement strand by 6 points is as follows:
Make sure all operations are canceled or press the Esc key.
Enable the "Strand" tool.
Select the concrete object to be reinforced.
Indicate the strands' starting points.
Press the mouse wheel button.
Tekla Structures v21.1
Tekla Structures v2021
6. Indicate the second position of the bar strands for each bar apart.
7. Press the mouse wheel button or the "Space" key.
8. Indicate the third position of the bar strands for each bar apart.
9. Press the mouse wheel button or the "Space" key.
10. Indicate the fourth position of the bar strands for each bar apart.
11. Press the mouse wheel button or the "Space" key.
12. Indicate the fifth position of the bar strands for each bar apart.
13. Press the mouse wheel button or the "Space" key.
14. Indicate the sixth position of the bar strands for each bar apart.
15. Press the mouse wheel button or the "Space" key.
16. Press the Esc key to disable the tool.
Tekla Structures v21.1
Tekla Structures v2021
Thus the points indicate the bents at the concrete object's body.
Tekla Structures v21.1
Tekla Structures v2021
It is possible to edit strands. Select the strands thus you can see their
Select the points and move them at 300 mm to the right and the left as
Tekla Structures v21.1
Tekla Structures v2021
The "Pull per strand" parameter
defines the tensile force value that can be reflected in the statements.
There are various types of equipment allowing creating strands. In the
present guidelines, we will examine the technology for creating stands
in the TS software.
In the picture, you can see one of the jacks pulling up the strands to
a definite tension.
Tekla Structures v21.1
Tekla Structures v2021
The "Debonding" section
defines parameters allowing to control the dimensions and location of
the debonded areas at the reinforcing bar.
Go to the "Strand" properties menu, "Debonding" section.
Tekla Structures v21.1
Tekla Structures v2021
Now, you can see that there are no special areas at the bars and along
Add a line to the "Debonding" properties menu and indicate the
offset for the bar's starting point equal to 300 mm. In the model
still, there were no visible changes made.
Tekla Structures v21.1
Tekla Structures v2021
To run the update, it is necessary to indicate the bar's sequence
Tekla Structures v21.1
Tekla Structures v2021
The endpoint is defined by a respective field. Set the offset value for
Tekla Structures v21.1
Tekla Structures v2021
You can define a debonded area at the bar's middle. Set it out equal
Tekla Structures v21.1
Tekla Structures v2021
Two distinct fields are controlling the debonding at its midpoint, each
of them defining the offsets towards the staring or the endpoint respectively
from the center point.
Tekla Structures v21.1
Tekla Structures v2021
In the "Debonded strands" field indicate the value “
1 2 3
”.
Tekla Structures v21.1
Tekla Structures v2021
You can separately configure the strands' debonding. In the first
Add one more line and set it for strand number two. Set its offset
values at 200 mm for all the fields. To facilitate indicating the
values use the "Symmetry" section and enable the checkmark for
"End length= strat lengths".
Thus now it is sufficient to indicate just the offsets for the starting