Place sets and instances of rebar in your model to accommodate design and use of different methods of reinforcement.
This video demonstrates the following:
You can add reinforcement to concrete elements by adding instances of rebar, either singularly or in sets. This exercise will demonstrate adding rebar elements to a concrete beam.
You typically place rebar in section views. To add rebar, select the beam and click the Rebar tool on the Reinforcement panel. In the shape browser, select the rebar shape, and then specify whether to orient the rebar Parallel to the Work Plane, Parallel to Cover, or Perpendicular to Cover.
Similar to creating an array of elements, when you place a rebar set, you can specify either the number of instances in the set or the spacing between instances, which will determine the total number of instances based on the element the reinforcement is being placed in. In this case, Minimum Clear Spacing is selected as layout option and the value of 125mm is specified for spacing.
When you move the cursor over the beam section you can see the preview image of the rebar extends into the slab, but still respects the rebar cover which is indicated by the green dashed line near the top of the slab. Press the spacebar to rotate the rebar so the hooks are positioned as needed and then click to place the set along the length of the beam.
You can adjust the length of the rebar set by selecting it and dragging its shape handles. Since the layout option used in this case specified the spacing between rebar instances, shortening the set results in fewer instances.
The next step in reinforcing the beam is to place straight rebar sets Perpendicular to Cover. Using the Fixed Number option and specifying a quantity of 3, place a rebar set inside each vertical edge of the beam section. Notice how the top instances in each set are positioned below the slab. Select the set and lengthen the set span by dragging the shape handles.
Now place two single instances of straight rebar to complete the reinforcement of the beam. And finally adjust the lengths of the straight rebar to extend into the joined column and the structural wall.
Using the Rebar tools in a structural model will assist in detailing, documenting, and scheduling a project.