Intervals are a way of separating information into several groups; information for every group can also be duplicated, if desired. When a new interval is defined, you can choose whether or not to copy all the new information about conditions assigned to entities.
Therefore, the correct way to work is to define all the conditions first and afterwards create the new intervals.
The options are:
- New: You can define as many intervals as you wish using this command. When creating a new one, you can choose whether or not to copy the assigned conditions. To copy them, conditions must already have been assigned (see Conditions).
- Current: Chooses the current interval to use. Any subsequent conditions or interval data (see Interval data) will be considered inside this interval.
- Delete: Deletes one existing interval and all its related data.
These groups, or intervals, can be used to change some conditions or information, like the increment factor in an incremental analysis. They can also be useful in order to define load states for the same geometry.