UNITAR STRUCT / DOCUMENTATION

Walls

v2026-10-11

Straight walls, in any direction, with end cages, openings and ring beams. Basement walls have their own guide.

Create a wall

Open the Wall menu on the 3D Modeling toolbar. The wall is created on the active level.

Command	Button	What it does
`MODEL_WALL`	Wall	A straight wall, from two points on its axis.
`MODEL_WALL_CAGE`	Wall cage	A separate, rectangular end cage.
`MODEL_WALL_CAGE_FROM_POLY`	Cage from polyline	A cage from a closed polyline: four vertices give a rectangle, more give an L or T shape.
`MODEL_WALL_BELT`	Wall belt	A ring beam on top of the selected walls.

MODEL_WALL asks in turn:

Insertion method [Two-points/One-point] <Two-points>: — two points on the axis, or one point and the length.
Wall start point on centerline: and Wall end point on centerline: — the ends of the axis.
Thickness BW [cm] <25>: — the thickness.
Height [cm] — the height; that of the level is proposed.

End cages

When both ends are the same, the cage comes from the wall reinforcement: its length, vertical bars and stirrups are set in REBAR_EDIT.
When the ends differ, or at corners and junctions, you place a separate cage with Wall cage or Cage from polyline. A cage placed by hand replaces, at that end, the cage from the wall reinforcement.
A cage that touches walls joins their assembly by itself. If it does not, group the elements with WALL_ASSEMBLY_CREATE (Wall assembly).

Openings

WALL_OPENING_ADD (Add opening) asks for the wall, the width and height of the opening (Opening width W [cm] <80>:, Opening height H [cm] <210>:), its position along the wall and from the base, then the number and diameter of the edge bars.

The opening shows as an outline in the model, the wall is cut, and the opening gets a code (G1, G2…).
Edit, Move, Copy and Delete opening work on the selected opening. An opening cannot leave the wall or overlap another one.
Field bars stop at the opening. Small openings close together are treated as a group, and the bars run across the gaps between them.
From 100 cm upwards, field bars get a hook towards the opening and edge bars are added.

Reinforce

The wall: vertical and horizontal bars (diameter and spacing), links and, where it applies, the end cage.
A separate cage and a ring beam are reinforced with REBAR_EDIT too: for the ring beam, top and bottom bars and stirrups.

Working with elements: edit, copy, check →

Walls over several levels

WALL_PLANS_MODE (Wall plans mode) chooses how stacked walls are drawn: cumulative, over the whole height (default), or per level.
WALL_LAP_POS (Wall splice position) chooses where the vertical bars are spliced: at the base of the level, at mid-height, or continuous over the ground floor.
MODEL_WALL_CONVERT (Convert wall type) turns a wall between superstructure and basement. Geometry and openings are kept; the reinforcement is assigned again.

What appears on the sheets

The elevation, with grid axes, dimensions and level marks, the vertical section and the horizontal section, at 1:50.
The cage details, at 1:25.
The ring beam: elevation at 1:50 and section at 1:25, on its own sheet.
The sheets are called REINF_Walls and REINF_Belts (ARMA_Pereti and ARMA_Centuri when the drawings are in Romanian).

Good to know

Curved walls are not covered. Superstructure walls have a constant height.
A column with a side ratio of 4 or more is modelled as a wall.
After MODEL_EXTEND_END, openings left outside the wall are reported with [WARN].

Basement walls →

← All documentation