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Shell longitudinal and transverse reinforcement

Use this tool to draw a region for a rebar set or to place a single rebar bar in shell elements.

You can only draw on the currently selected reinforcement layer.

note

To read more about reinforcement layers, see topic:

User interface ➔ Tab menus ➔ Concrete Design ➔ Reinforcement Layers


Tool palette​

Manual design opens a tool palette where you define how reinforcement is created and applied.

Tool palette

Main tools​

  • Define – select the reinforcement definition type and drawing method.

  • Properties – set reinforcement parameters for the selected method. Opens Default settings for the selected reinforcement set or bar

  • Anchorage – configure anchorage-related settings for the drawn reinforcement

  • Default settings – set default values for the active definition function (read below in more detail)

Definition functions​

Use the following functions to create reinforcement:

  • Straight – draw regular straight bars in sets.

  • Centric – draw centrically arranged rebar sets.

  • Single – draw individual rebars.

Area definition methods for Straight and Centric​

For Straight and Centric reinforcement, you can define the region with:

  • Rectangular – define a rectangular reinforcement area.

  • Circular – define a circular reinforcement area.

  • Polygonal – define a polygon-shaped reinforcement area.

  • Pick lines – define the area by selecting existing lines.

  • Pick existing region – reuse an already defined region.

Additional functions for Single​

The Single function includes two dedicated placement modes:

  • By line – place one or more single bars along a defined line.

  • By rectangle – place one or more single bars in a rectangular layout.

For By line, line definition methods are:

  • By end points – define the bar line by selecting start and end points.

  • By shell edge – define the bar line along a shell edge.

  • By shell corner – define bar placement from a shell corner.

Additional settings​

The available fields depend on the selected definition method.

  • Diameter – select bar diameter from a dropdown, with Edit library support.

  • Space – enter bar spacing as a numeric value.

  • Cover – enter concrete cover as a numeric value.

  • Required area – show the required reinforcement area from analysis results.

  • Applied area – show the applied reinforcement area as a read-only value.

  • Apply on both sides – apply the drawn mesh on both top and bottom sides.

  • Angle – set reinforcement angle, used for centric reinforcement.

  • Number of bars – set how many bars are created in Single mode at the same location.

  • Overhang – set extension length beyond the shell edge in By shell edge mode.

  • Length – set bar length next to the selected corner in By shell corner mode.


Anchorage​

Use this tool to set anchorage-related parameters for the drawn reinforcement.

Anchorage settings

  • Automatic (Fully anchored at shell edge, not anchored otherwise) – set the reinforcement set to be fully anchored at shell edges and not anchored elsewhere. This is the default setting for all reinforcement sets.
  • Manual – set the reinforcement set to be manually anchored. When you select this option, the following fields become available:
    • r – set the required anchorage length as a percentage of the bar length
    • Calculate anchorage length automatically – checkbox to calculate the required anchorage length l,bd based on the selected code and bar properties
    • l,bd – numeric field to set the required anchorage length l,bd. This field is only editable when Calculate anchorage length automatically is unchecked. The calculated or manually set l,bd is shown as a read-only value in the reinforcement properties after drawing.

Default Settings​

Default settings are linked to the active definition function (Straight, Centric, or Single).

Default settings

Depending on function, the available options include:

  • Quality – select bar quality from a dropdown, with Edit library support.

  • Cover – set default concrete cover.

  • Diameter of bars – select default bar diameter from a dropdown, with Edit library support.

  • Bar space – set default spacing between bars.

  • Required area – show the required result value for reinforcement area.

  • Applied – show the applied reinforcement area as a read-only value.

  • Colour – open the color palette for the selected rebar set or single bar.

  • Number of bars – set default quantity for single-bar placement operations.

  • Angle – set default reinforcement angle where applicable.


Last update: 2026-04-10