Hollowcore reinforcement strands (60)

Tekla Structures
Tekla Structures

Hollowcore reinforcement strands (60)

The Hollowcore “Automated Reinforcement Generator” (HC-ARG) component enables Tekla Structures to accurately model all typical hollowcore reinforcement. Use the tabs in the component dialog box to load a previously saved HC (Hollowcore) reinforcement scheme, or new reinforcement scheme.

Strand template tab

Use the Strand template tab to define the number and arrangement of vertical strand planes in each stem, and the vertical distances between grid points in each plane.

Define distances

You can select to use either the values defined in the component dialog box (Use dialog data), or you can select to use an external .dat file (Use external file).

  • Use dialog data: The component uses the grid points defined in Grid spacing along X, and Grid spacing along Y.

  • Use external file: You can add additional grids for strand patterns in an external .dat file. You can find an example .dat file called HollowcoreReinforcementStrands.dat in the common environment.

Grid spacing

Option Description

Grid spacing along X

  • Use grid spacing to define grid spacing values for the X axis. Separate the values with commas or spaces.

  • You can use multiplier values to define a repeating series of values, for example, 8*2 indicates 8 holes with a 2 unit spacing.

  • The first value is the distance from the left edge of the plank. Each successive value is the distance to the next grid point.

Grid spacing along Y

  • Use grid spacing to define grid spacing values for the Y axis. Separate the values with commas or spaces.

  • The first value is the distance from the bottom edge of the beam. Each successive value is the distance to the next grid point.

Strand pattern tab

Use the Strand pattern tab to define the actual strand properties.




Define the row number in the strand template for the start of the strand.


Define a list of one or more column numbers and/or column ranges in the strand template at which a strand should be created.


Define the size of the strands by selecting it from the reinforcing bar catalog.


Define the strand grade.


Define the pull force of the strands.

You can enter a pull value even when the distances are defined by an external .dat file. If you do not enter a pull value, the values in the .dat file are used.

Strand extension tab

Use the Strand extension tab to define the strand extensions.

You can define the extensions separately for the longest edge and the remaining edges.

Attributes tab

Use the Attributes tab to define the naming and numbering properties of the strands.




Prefix for the part position number.

Start number

Start number for the part position number.


Tekla Structures uses the name in drawings and reports.


Use Class to group reinforcement.

For example, you can display reinforcement of different classes in different colors.

Strand code

Store strand code – With option Store strand code you may choose to store (or not) a user-defined textual attribute TS_STRAND_CODE to part.

Strand code – In field Strand code you may enter a string template for the value of the above mentioned user-defined attribute. The default template is the total number of created strands. The template may contain any text and the predefined fields for:

  • %NUMBERS – is the numbers of created strands with different sizes and/or grades e.g. 10 (for one size & grade) or 6+4 (if two sizes and/or grades has been used).

  • %SIZES – sizes of the strands e.g 1/2 or 1/2 + 3/8.

  • %GRADES – grades of strands.

Strand creation at voids

Create strand at voids – The option Yes will show the strands even though the voids are present. The option No will not show the strand if void is present at any location along the strand path.

Select to cut the strands at void locations from Cut strands at voids.

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