The cast-in-place structures are usually split into definite segments (breaks). It is a conventional splitting, which is visible in the drawings. See below the tools' allocation at the main menu bar.

To investigate the toll's functionality, create a concrete column

Set out the cast unit type as "Cast in place". Not switching to the "Cast in place" type does not allow applying the pour breaks to the model.

The reason is that precast units do not require breaks. Do not miss out

Enable the first tool for creating a pour break by a single point.

The algorithm for applying the "Pour break"/ "Single point"

1. Enable the "Pour break"/ "Single point" tool.
2. Indicate the point splitting the concrete object into parts.
3. Press the Esc key to disable the tool.

In the drawing, the pour break is defined as a line with ticks.  

Go to the "Pour break Properties" menu. There are available only two textual fields defining various characteristics and notes to the pour break.

You may fill in these fields with the necessary information to be reflected

Switch off the "Direct modification" tool. Select the pour break and move it into the upward direction at 250 mm by using the Ctrl+M hotkey combination.

Thus you can see that the pour break plane is available for moving by

Switch on the "Direct modification" tool.

Select the pour break. Further, select one of its points and drag it downwards

As you can see from the above, the pour break plane is no longer perpendicular to the column body and is defined by a tilting angle with reference to it.  

Select an intermediate imaginary point and drag it downwards in the way

Thus we can conclude that pour breaks can be of various shapes, which are reflected in the drawings. The current pour break shape is similar to the below:

The “Pour break”/ “Two points” tool

Create a column with a profile of 400*400 and a 1000 mm height. Do not miss out on specifying the concrete unit type as "Cast in place".  

The algorithm for using the "Pour break"/"Two points"

1. Enable the "Pour break"/"Two points" tool.
2. Indicate the first point of the division line.  
3. Indicate the second point of the division line.
4. Press the Esc button to disable the tool.

The “Pour break”/ “Multiple points” tool allows creating a pour break at a definite tilt angle by a broken line.  

Create a column with a profile of 400*400 and a 1000 mm height. Do not miss out on specifying the concrete unit type as "Cast in place".  

The algorithm for using the "Pour break"/"Multiple points"

1. Enable the "Pour break"/"Multiple points" tool.
2. Indicate the points of the pour break line.  
3. Press the Esc button to disable the tool.

The “Pour view” tool allows selecting each pour break apart, missing out on selecting the concrete object itself.  

Create a beam of 1000 mm height. Do not miss out on specifying the concrete

Create several pour breaks by using the “Pour break”/”Single

Enable the "Pour view" tool. Clicking on the tool's button

In the "Pour view" regime, it is possible to select pour breaks

Let's copy the selected pour break. Enabling the Ctrl+C hotkey combination alerts the user that the operation is not possible in the current regime. Thus switch off the "Pour view" tool.  

Confirm the rendering regime update by pressing the "Display"

 Now, you can select the whole object. Select it and proceed to copy

Change the class value of the initial part to assure a better visual representation:

Enable the “Pour view” tool.  

Try out selecting the pour breaks. Although there are two distinct concrete

Select all the pour breaks and go to the right-click menu and enable the

Tile the views vertically. Note that the "Pour view" tool works

Thus you can enable the tool at the required view.

Enable the "Pour view" tool for the new "(Basic view)"

Select the initial view and disable the “Pour view” tool for

You can simultaneously select in the views various parts of the same object with the "Pour view" settings individually adjusted for each view.  

Try out the above using the Ctrl key and referring to the below:  

Note that selecting one and the same area at various views brings out different results according to the current "Pour view" settings of the view.

Now create one more copy of the initial object at the distance of two

The TS may inquire about expanding the view.

Press the “Do not Expand” button as the copied object will

Change the copied object class value at 6.

Note that the new object has no pour breaks. The reason for this is that

Create one more copy of the object placing it in the gap between already

Upon completion of the copying operation, the pour breaks automatically

Change the class value for the new object at 7 to assure a better visual representation. Thus we can conclude that each pour break is a limitless plane that creates cuts in all adjacent concrete objects.  

Select all concrete objects and copy them to the right where no pour breaks

Thus you can see, that a pour break is a three dimensional plane automatically

With the "Pour view" tool switched on, you can see that the right-side object elements united into one object, ignoring the pour breaks of the initial elements.  

Exercise on your own to use the "Pour break" tool to get a better

• 2.18.12 The “Wall layout” tool in Tekla Structures
• 2.18.14 The “Pour view” and “Pour break” tools in Tekla Structures
• 2.19 Rebar modeling in Tekla Structures