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December 20, 2018

How to Create and Apply A Custom Rebar Layout

Applying a Custom Rebar Layout in RISA-3D:

To begin creating a custom rebar layout, simply click the Custom Rebar Layout  icon at the top of the menu bar to create a custom rebar layout.

In RISA-3D, within the rebar layout dialog you can create a custom rebar layout for concrete beams, concrete columns and even create a custom shear rebar layout.  Using the rebar layout editor is very easy to use. The following example will demonstrate creating a custom rebar layout for a rectangular concrete column.  Click “Add” to create a new rebar layout and create a label for the layout.

Select whether the rebar layout is for a rectangular column or circular column. You can also choose the rebar standard and yield stress for your custom rebar configuration.

To create the reinforcement layout, input the parameters into the spreadsheet to configure each row of rebar. Each parameter is explained below:

1. y1 From: This is the direction that will determine where the reinforcement will be measured from (based on the reference graphic).

    • Top or Bottom: The row of reinforcement will be measured from the top or bottom of the concrete member and will distributed the number of rebar horizontally  and evenly between the concrete cover.
    • Left or Right: The distance to the centerline of rebar will be measured from the left or right side of the member and the number of bars will be distributed vertically.

2. y1 [in]: Distance to the centerline of the reinforcement row

3. No of bars: Number of rebar within the given row of reinforcement.

4. Size: This is the size of the rebar within the given row of reinforcement

5. Start [ft,%]: This is the distance along the length of the member where the reinforcement will star. This can be entered as a length or a percentage of the member’s length.

6. End [ft,%]: This is the distance along the length of the member where the reinforcement will end. This can be entered as a length or a percentage of the member’s length.

7. z1 [in]: This is the distance from the left side of the member to the centerline of left-most rebar within the given row of reinforcement.

8. z2 [in]: This is the distance from the right side of the member to the centerline of right-most rebar within the given row of reinforcement. 

Applying a Custom Rebar Layout in RISA-3D

To apply your custom layout to your members, open the Members spreadsheet. From both the Concrete Beam and Concrete Column tabs, you can click the small red arrow in the Flexural Layout and Shear Layout Columns to select your custom rebar layout.  

Alternatively, you can double click on a member to open up the Member Properties dialog box. Then navigate to the Design tab where you can change the flexural and shear bar layouts from ‘Use Design Rule’ to your customized rebar layout.

Applying a Custom Rebar Layout in RISAFoundation:

In RISAFoundation, clicking the Custom Rebar Layout  icon will open the rebar layout editor where you can create new layouts for bending rebar, shear rebar and pedestal/pile rebar.

Similar to RISA-3D, you can specify the custom rebar layout from the corresponding spreadsheet.


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This entry was posted by RISA News on Thursday, December 20th, 2018 at 11:00 am and is filed under Technical Solutions. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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