This section contains material, section, and rebar definitions. Once these properties are imported throughout the modeling, they will automatically appear under the Properties.
This section also serves as the input interface of the properties. Follow the below steps to define the properties that this interface will utilize in the example.
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part is to inform about the general purposes of section definitions. Follow the next steps to create different section definitions that OpenBrIM provides.
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Section Editor
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| 1 | Go to Properties/MaterialsEnter a Section under Name. |    | |||||
| 2 | In 1stImport a material. | ||||||
| 3 | From any column of the added row, click -on three-dots icon |  | |||||
| 4 | You can open the tab which includes Polygon, Template, Rebar and Tendon by clicking |  | |||||
| 5 | To define a polygon shape, click to at | ||||||
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| 1 | From Database drop-down, select Steel Material Database (US) |  | |
| 2 | Select Category as Structural Steel. | ||
| 3 | Select Asset as A709_50. | ||
| 4 | Click Import. | ||
| 5 | Check the imported material placed in 1st row including the mechanical properties |  Click |  |
| 2 | If you don’t have a material already imported (or defined as custom), you can import by clicking | ||
| 3 | Edit dimensions of the shape to create the section. Click to Import. |  | |
| 4 | After you import the section, it will show up on the analytical view. | ||
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Rebar Definition
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rebars to your section. | |
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From Database drop-down, select Concrete Material Database (US).
Select Category as Cube.
Select Asset as FcCube_4ksi
Click Import.
Check the change in Materials data spreadsheet
Check the Steel column and Concrete column for the material type-specific properties.
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Click |  | |
| 2 | If you don’t have a Rebar definition in your project, you will get a popup to import one. Just click OK and continue. | |
| 3 | Select your asset from OpenBrIM Database for rebar profile and click Import. |   |
| 4 | By clicking |  |
| 5 | Let’s stay on Line Layout, and enter rebar layout input data | |
| 6 | After you click Add, you should click the start and end location points of the section. No need to be exact in locations,they can be edited later. |  |
| 7 | After clicking end location, Edit Linear Rebar Layout window appears. | |
| 8 | Edit Linear Rebar Layout. |  |
| 9 | If you don’t have a rebar material already imported (or defined as custom), you can import by clicking |  |
| 10 | After Apply all the entered data in Edit Linear/Circular Rebar Layout window, you can change the location of the rebar layout at the analytical coordinate system by clicking Points Spreadsheet under |   |
| 11 | Applying the same procedure, you can insert rebars at top and bottom. This time number of rows is set to 1 and rebar layouts placed twice for top and bottom, respectively |   |
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The rebars are completed. This training example doesn’t require any tendon definition; the below steps explain how to add a tendon layout to the section. |
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Tendon Definition
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add tendon to your section. | |
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Go to any column of steel/concete material row.
Click on three-dots icon 
of any cell of the row. Select Edit MaterialName. Edit for reinforcing steel.
Select from Type drop-down as Reinforcing Steel.
From Stress-Strain Model drop-down, select Bilinear Steel.
Click Save.
Edit for concrete materials.
Select from Type drop-down as Concrete.
From Stress-Strain Model drop-down, select Mander Concrete.
Click Save.
Example (custom material).
Rebars
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Click |   | ||||||
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Tendon definitions are completed. Remember this training example doesn’t require any tendon definition. |
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Section Editor Features
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| 1 | By clicking 3 dot button, you can open the features tab of the section. |  |
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| 1 | Rename Section | Allows to change the name of this section. | ||||||||||||
| 2 | Print Report | Allows to change page size. | ||||||||||||
| 3 | Materials | See the materials assigned in this section, rebar and tendon. | ||||||||||||
| 4 | Rebar Profiles | See the rebar profiles. | ||||||||||||
| 5 | Section Properties | Section properties of the section such as area, inertia, plastic section modulus, etc. |  | |||||||||||
| 6 | Flexure Capacity | Computes flexural capacity of the section.
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| 7 | Moment Curvature | Computes the moment-curvature diagram of the section.
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| 8 | Interaction Diagram | Computes Axial Force-Moment Interaction diagram.
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| 9 | Set C.O.G. as Origin | Changes the origin of the section to (0,0) point. | ||||||||||||
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Example Custom Section with Custom Material
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Mechanical properties of the section like Area and Inertia are also customizable with two options:
Section with shape definition: It requires defining section shape via Section Editor or importing from the section database. In that case, section-related properties are automatically calculated.
Section without shape definition: It requires entering section property parameters manually. The Has Geometry (read-only) parameter turns into NO by default in that option.
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