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Tutorial
Topic
Example Slab Having Mesh Of Straight Rebars
Level
Intermediate
Time to complete
Authors
Shiv Charan
FreeCAD version
0.20
Example files
See also
None

Описание

The Reinforcement SlabRebars tool allows the user to create reinforcing bars inside a Slab Arch Structure object.

This tool is part of the Reinforcement Workbench, an external workbench that can be installed with the Addon Manager.

In this example we will create Slab Reinforcement for Slab having Mesh of Straight Rebars (straight rebars in both parallel and cross direction ) as shown in below figure.

A Example of Slab Reinforcement of Slab Spanning having Straight Rebars in Slab Arch Structure

Usage

1. Select any face of a previously created Slab Arch Structure object. as shown in below image.

Selected face for Slab Arch Structure

2. Then select Slab Reinforcement from the rebar tools.

3. A dialog box will pop-out on screen as shown below.

Dialog Box for the Slab Reinforcement

4. Select the desired type of cover of reinforcement mesh (Top or Bottom) In example Bottom is selected.

5. Select the StraightRebar rebar type and other input data for rebars in parallel direction of selected face as show in below image.

Dialog Box for Slab Reinforcement of the Rebars in parallel direction of selected face

6. Now click on Next button or select Cross Rebars in list view.

7. Now select StraightRebar rebar type and other desired data for input data for rabars in cross direction of selected face as show in below image.

Dialog Box for Slab Reinforcement of the Rebars in cross direction of selected face

8. Click OK or Apply or Finish to generate Slab reinforcement.

9. Click Cancel to exit the dialog box.

Properties Used for Slab Spanning in One direction

Properties for Rebars in Parallel Direction to selected face:

• ДанныеMesh Cover Along: It represent alignment of rebar mesh along top or bottom face of structure. It can have two values "Top" and "Bottom".
• ДанныеRebar Type: Type of rebar for parallel rebars for slab reinforcement. It can have four values 'StraightRebar', 'LShapeRebar', 'UShapeRebar', 'BentShapeRebar'.
• ДанныеFront Cover: The distance between parallel rebar and selected face.
• ДанныеLeft Cover: The distance between the left end of the parallel rebar to the left face of the structure.
• ДанныеRight Cover: The distance between the right end of the parallel rebar to right face of the structure.
• ДанныеBottom Cover: The distance between parallel rebars from the bottom face of the structure.
• ДанныеTop Cover: The distance between parallel rebars from the top face of the structure.
• ДанныеRear Cover: Rear cover for slab reinforcement of parallel rebars.
• ДанныеDiameter: Diameter of parallel rebars
• ДанныеAmount: It contains count of parallel rebars.
• ДанныеSpacing: It contains spacing between parallel rebars.

Properties for Rebars in Cross Direction to selected face:

• ДанныеRebar Type: Type of rebar for cross rebars for slab reinforcement. It can have four values 'StraightRebar', 'LShapeRebar', 'UShapeRebar', 'BentShapeRebar'.
• ДанныеFront Cover: The distance between cross rebar and selected face.
• ДанныеLeft Cover: The distance between the left end of the cross rebar to the left face of the structure.
• ДанныеRight Cover: The distance between the right end of the cross rebar to right face of the structure.
• ДанныеBottom Cover: The distance between cross rebars from the bottom face of the structure.
• ДанныеTop Cover: The distance between cross rebars from the top face of the structure.
• ДанныеRear Cover: Rear cover for slab reinforcement of cross rebars.
• ДанныеDiameter: Diameter of cross rebars
• ДанныеAmount: It contains count of cross rebars.
• ДанныеSpacing: It contains spacing between cross rebars.

Scripting

See also: Arch API, Reinforcement API and FreeCAD Scripting Basics.

The Slab Reinforcement tool can be used from the Python console by using the following function:

Create Slab reinforcement having Straight Rebars Reinforcement

To create Slab reinforcement having Straight Rebars Reinforcement shown in above figures you can use makeSlabReinforcement function as follows:

from SlabReinforcement.SlabReinforcement import makeSlabReinforcement
SlabReinforcementGroup = makeSlabReinforcement(
    parallel_rebar_type="StraightRebar",
    parallel_front_cover=20,
    parallel_rear_cover=20,
    parallel_left_cover=10,
    parallel_right_cover=10,
    parallel_top_cover=30,
    parallel_bottom_cover=20,
    parallel_diameter=8,
    parallel_amount_spacing_check=False,
    parallel_amount_spacing_value=50,
    cross_rebar_type="StraightRebar",
    cross_front_cover=20,
    cross_rear_cover=20,
    cross_left_cover=10,
    cross_right_cover=10,
    cross_top_cover=29,
    cross_bottom_cover=20,
    cross_diameter=8,
    cross_amount_spacing_check=False,
    cross_amount_spacing_value=50,
    mesh_cover_along = "Bottom",
    structure=App.getDocument("slab").getObject("Beam"),
    facename='Face4',
)

• Creates a SlabReinforcementGroup object for Slab Spanning having Straight Rebars Reinforcement from the given structure, which is a Slab 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.

Properties used for slab spanning in two direction for scripting

Properties for Rebars in Parallel Direction to selected face:

• Данныеparallel_rebar_type: Type of rebar for parallel rebars for slab reinforcement. It can have four values 'StraightRebar', 'LShapeRebar', 'UShapeRebar', 'BentShapeRebar'.
• Данныеparallel_front_cover: The distance between parallel rebar and selected face.
• Данныеparallel_rear_cover: Rear cover for slab reinforcement of parallel rebars.
• Данныеparallel_left_cover: The distance between the left end of the parallel rebar to the left face of the structure.
• Данныеparallel_right_cover: The distance between the right end of the parallel rebar to right face of the structure.
• Данныеparallel_top_cover: The distance between parallel rebars from the top face of the structure.
• Данныеparallel_bottom_cover: The distance between parallel rebars from the bottom face of the structure.
• Данныеparallel_diameter: Diameter of parallel rebars.
• Данныеparallel_amount_spacing_check: If is set to True, then value of parallel_amount_spacing_value is used as rebars count else parallel_amount_spacing_value's value is used as spacing in parallel rebars.
• Данныеparallel_amount_spacing_value: It contains count of rebars or spacing between parallel rebars based on value of amount_spacing_check.

Properties for Rebars in Cross Direction to selected face:

• Данныеcross_rebar_type: Type of rebar for cross rebars for slab reinforcement. It can have four values 'StraightRebar', 'LShapeRebar', 'UShapeRebar', 'BentShapeRebar'.
• Данныеcross_front_cover: The distance between cross rebar and cross_face (face perpendicular to selected face).
• Данныеcross_rear_cover: Rear cover for slab reinforcement of cross rebars.
• Данныеcross_left_cover: The distance between the left end of the cross rebar to the left face of the structure.
• Данныеcross_right_cover: The distance between the right end of the rebar to right face of the structure relative to cross_face.
• Данныеcross_top_cover: The distance between cross rebar from the top face of the structure.
• Данныеcross_bottom_cover: The distance between cross rebar from the bottom face of the structure.
• Данныеcross_diameter: Diameter of cross rebars.
• Данныеcross_amount_spacing_check: If is set to True, then value of cross_amount_spacing_value is used as rebars count else cross_amount_spacing_value's value is used as spacing in rebars.
• Данныеcross_amount_spacing_value: It contains count of rebars or spacing between rebars based on value of cross_amount_spacing_check.

Common Properties for Parallel and Cross Rebars:

• Данныеmesh_cover_along: It can have two values "Top" and "Bottom". It represent alignment of rebar mesh along top or bottom face of structure.
• Данныеstructure: Arch structure object. Default is None
• Данныеfacename: selected face of structure. Default is None

Edition of Slab Reinforcement of Slab Spanning having Straight Rebars Reinforcement

You can change the properties of the Slab Reinforcement for Slab Spanning having Straight Rebars Reinforcement by using editSlabReinforcement function as follows:

from SlabReinforcement.SlabReinforcement import editSlabReinforcement
SlabReinforcementGroup = editSlabReinforcement(
    SlabReinforcementGroup,
    parallel_rebar_type="StraightRebar",
    parallel_front_cover=20,
    parallel_rear_cover=20,
    parallel_left_cover=10,
    parallel_right_cover=10,
    parallel_top_cover=30,
    parallel_bottom_cover=20,
    parallel_diameter=8,
    parallel_amount_spacing_check=True,
    parallel_amount_spacing_value=10,
    cross_rebar_type="StraightRebar",
    cross_front_cover=20,
    cross_rear_cover=20,
    cross_left_cover=10,
    cross_right_cover=10,
    cross_top_cover=20,
    cross_bottom_cover=20,
    cross_diameter=8,
    cross_amount_spacing_check=True,
    cross_amount_spacing_value=10,
    mesh_cover_along = "Bottom",
    structure=App.getDocument("slab").getObject("Beam"),
    facename='Face4',
)

• slabReinforcementGroup is a previously created Slab Reinforcement group object.
• The other parameters are the same as required by the makeSingleTieFourRebars() function.

you can change any property to edit Slab Reinforcement.