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Arch_Rebar_BentShape.md

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Arch Rebar BentShape

Description

The BentShape Rebar tool allows the user to create a set of bent reinforcing bars inside an Arch Structure object.

The BentShape Rebar tool is also integrated into BIM Workbench.

This command is part of the Reinforcement Workbench, an external workbench that can be installed with the Addon Manager via the Tools → Addon manager → Reinforcement menu.

*Two sets of bent reinforcement bars inside an [Arch Structure](Arch_Structure.md)*

Usage

  1. Select any face of a previously created Arch Structure object.

  2. Then select BentShape Rebar from the rebar tools.

  3. A task panel will pop-out on the left side of the screen as shown below.

  4. Select the desired orientation.

  5. Populate the inputs like 'Left Cover', Right Cover, Top Cover, 'Bottom Cover', 'Front Cover', 'Bent Angle', 'Bent Factor', 'Rounding' and 'Diameter' of the rebar.

  6. Select the mode of distribution either 'Amount' or 'Spacing'.

  7. Pick Selected Faceis used to verify or change the face for rebar distribution.

  8. Click OK or Apply to generate the rebars.

  9. Click Cancel to exit the task panel.

:

Taskview panel for the Arch Rebar BentShape tool

Properties

  • Orientation: It decides the orientation of the rebar (like a bottom, top, right and left).

  • Front Cover: The distance between rebar and selected face.

  • Left Cover: The distance between the left end of the rebar to the left face of the structure.

  • Right Cover: The distance between the right end of the rebar to right face of the structure.

  • Bottom Cover: The distance between rebar from the bottom face of the structure.

  • Top Cover: The distance between rebar from the top face of the structure.

  • Anchor Length: It is the arm's length of bent shape rebar.

  • Bent Angle: It decides angle in bent shape rebar.

  • Amount: The amount of rebars.

  • Spacing: The distance between the axes of each bar.

Scripting

See also:

Arch API, Reinforcement API and FreeCAD Scripting Basics.

The BentShape Rebar tool can be used in macros and from the Python console by using the following function:

Rebar = makeBentShapeRebar(f_cover, b_cover, l_cover, r_cover,
                           diameter, t_cover, bentLength, bentAngle, rounding, amount_spacing_check, amount_spacing_value, orientation="Bottom",
                           structure=None, facename=None)

  • Creates a Rebar object from the given structure, which is an Arch Structure, and facename, which is a face of that structure.

    • If no structure nor facename are given, it will take the user selected face as input.

  • f_cover, b_cover, l_cover, r_cover, and t_cover are inner offset distances for the rebar elements with respect to the faces of the structure. They are respectively the front, bottom, left, right, and top offsets.

  • diameteris the diameter of the reinforcement bars inside the structure.

  • roundingis the parameter that determines the bending radius of the center reinforcement bars.

  • bentLengthand bentAngle define the length of the tip of the reinforcement bars, and the bending angle from the center bars.

  • amount_spacing_checkif it is True it will create as many reinforcement bars as given by amount_spacing_value; if it is False it will create reinforcement bars separated by the numerical value of amount_spacing_value.

  • amount_spacing_valuespecifies the number of reinforcement bars, or the value of the separation between them, depending on amount_spacing_check.

  • orientationspecifies the orientation of the rebar; it can be "Bottom", "Top", "Left", or "Right".

Example

import FreeCAD, Arch, BentShapeRebar

Structure = Arch.makeStructure(length=1000, width=1000, height=100)
Structure.ViewObject.Transparency = 80
FreeCAD.ActiveDocument.recompute()

Rebar = BentShapeRebar.makeBentShapeRebar(50, 20, 20, 20,
                                          8, 40, 100, 135, 2, True, 4, "Bottom", Structure, "Face4")
Rebar.ViewObject.ShapeColor = (0.9, 0.0, 0.0)

Rebar2 = BentShapeRebar.makeBentShapeRebar(50, 40, 20, 20,
                                           8, 20, 100, 135, 2, True, 4, "Bottom", Structure, "Face6")
Rebar2.ViewObject.ShapeColor = (0.0, 0.0, 0.9)

Edition of the rebar

You can change the properties of the rebar with the following function

editBentShapeRebar(Rebar, f_cover, b_cover, l_cover, r_cover,
                   diameter, t_cover, bentLength, bentAngle, rounding, amount_spacing_check, amount_spacing_value, orientation,
                   structure=None, facename=None)

  • Rebaris a previously created BentShapeRebar object.

  • The other parameters are the same as required by the makeBentShapeRebar() function.

  • structureand facename may be omitted so that the rebar stays in the original structure.

import BentShapeRebar

BentShapeRebar.editBentShapeRebar(Rebar, 50, 20, 20, 20,
                                  12, 20, 100, 155, 2, True, 6, "Top")

BentShapeRebar.editBentShapeRebar(Rebar2, 50, 35, 20, 20,
                                  12, 35, 100, 155, 2, True, 6, "Top")

Reinforcement

documentation index > Reinforcement > Arch > Arch Rebar BentShape