Use this option to define parameters of a reinforcement distribution. It is accessible by selecting the Reinforcement distribution tab, the Reinforcement: definition and detailing - radial reinforcement dialog displays:
The distance between distributed bars and the distribution line is assumed by default to be the cover adopted from the bar shape.
In the upper part of the dialog box there is the Minimal spacing edit field used to define the minimal spacing for bars distributed along the radius (a default value equals 50 mm). The minimal spacing concerns the distance between ends of distributed reinforcing bars positioned closer to the center of a circle/arc and must be greater or equal to a given value.
Distribution parameters can be defined by:
- The value of the distribution angle (this is the angle between bars in a defined distribution)
- The value of the reinforcement spacing (this is the distance between ends of distributed bars measured along the arc on the circle circumference); it is always a greater value of the spacing values for both ends)
- The value of the n parameter - it corresponds to the number of reinforcement spacings
- Determining a reinforcement area (presented on the region circumference).
Changing any of the listed parameters results in updating the values of the remaining ones.
The schematic drawing provided in the dialog illustrates the parameters specified above. The options next to the drawing enable you to place the reinforcement distribution with precision in a given zone:
- Two edit fields define a value of the distance between the extreme reinforcement and the zone border; there is a possibility to block the distance value for each zone - once the distance on one side is blocked, the distance value on the other side will be automatically adjusted to a specified number of bars and a spacing value; after blocking the distance on both sides, the spacing will be adjusted automatically to a given number of bars
o for a circle and ring distances are summed and make up the spacing S between the first and the last bar in the distribution
o for a circle sector or ring, these are distances between extreme bars and straight edges of the region specified on the greater arc of the region circumference
- The button located between the edit fields enables centering the distribution.