A bar pattern is one potential configuration of column longitudinal reinforcement. It consists of the quantity of reinforcement, a size for the longitudinal reinforcement and a size for the transverse reinforcement. A bar pattern group is simply a group of bar patterns. All patterns in the group have the same quantity of bars and the same size transverse bar. Only the size of the longitudinal bar varies from pattern to pattern within a group.

A Bar Pattern Group designation conforms to the following format:

Where:

• Rect: Indicates that the pattern is rectangular. This part of the label only appears in the Edit Bar Pattern dialog.
• 12 (4x2): These numbers indicate the quantity of bars in the bar pattern. The first number indicates the total number of bars. Inside the parenthesis, the layout of the bars is described. The first number states the number of bars in the B dimension of the column. The second number states the number of bars in the H dimension of the column.
• #3-#6, T10-T12: These are the bar sizes that can be used in the longitudinal direction.
• #3, T08: This is the bar size range that can be used in the transverse direction (tie).

Where:

• Circ: Indicates that the pattern is a circular tie. This part of the label only appears in the Edit Bar Pattern dialog.
• 6: This number indicates the quantity of bars in the bar pattern.
• #3-#6, T10-T25: These are the bar size range that can be used in the longitudinal direction.
• #3, T08: This is the bar sizes that can be used in the transverse direction (circular tie).
• (c): Circular tie

• Spir: Indicates that the pattern is a spiral. This part of the label only appears in the Edit Bar Pattern dialog.
• 6: This number indicates the quantity of bars in the bar pattern.
• #3-#6: These are the bar size range that can be used in the longitudinal direction.
• #3: This is the bar sizes that can be used in the transverse direction (spiral).
• (s): Spiral tie