Examples: Rebar sets in curved structures
You can reinforce curved concrete structures using rebar sets.
The curved concrete structures can include curved beams, polybeams that have Arc point chamfers, and flat spiral beams whose total rise is zero. You can also reinforce strip footings and wall panels the same way as you reinforce beams and polybeams.
For more information about creating rebar sets, see also Create a rebar set.
Create longitudinal bars for a curved beam
In this example, we will create longitudinal bottom bars for a curved concrete beam.
-
Create a curved concrete beam.
- On the Concrete tab, click Beam.
- Pick two points.
- Double-click the beam to modify its properties.
- Set the radius and number of segments, and then click Modify.
-
Create longitudinal bars at the bottom face of the beam.
Create crossing bars for a curved polybeam
In this example, we will create crossing U-shaped stirrups for a curved concrete polybeam.
-
Create a concrete polybeam with curved segments.
- On the Concrete tab, click .
- Pick at least three points you want the beam to go through, and then click the middle mouse button.
- Select the polybeam.
- Select the handle in a polybeam corner, and then select the Arc point chamfer type on the contextual toolbar.
-
Create crossing bars that follow the bottom and side faces of the beam.
Create reinforcing bars for a spiral beam
In this example, we will reinforce a spiral beam whose total rise is zero. We will create longitudinal bottom bars and crossing U-shaped stirrups.
You can use the following manual method also for more complex concrete objects that have been imported and that cannot be reinforced automatically.
Limitations
- If curved longitudinal bars have too small start and/or end offset values, the bars closest to leg face edges may be divided into small bar segments. To avoid this, increase the offset values.