Diamond stirrups

Diamond Stirrups are a special type of reinforcement stirrup used for square columns. Unlike traditional rectangular stirrups, diamond stirrups form a diamond-shaped loop around the column reinforcement, providing improved confinement and aesthetic symmetry.

Currently, Diamond Stirrups are supported only for square column configurations.

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Diamond stirrups can only be generated under specific reinforcement conditions. They are conditionally enabled based on the reinforcement layout of the Front and Bottom faces of the column.

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Diamond stirrups will be generated only if one of the following conditions is met:

• Condition A – Reinforcement Count Rule

The Front or Bottom reinforcement must satisfy at least one of the following:

• The number of bars is greater than or equal to 3 (≥ 3), or

• The number of bars is an odd number (e.g., 3, 5, 7, ...).

Example:

Face	Number of Bars	Diamond Stirrup Allowed?
Front	2	❌ No
Bottom	4	❌ No
Front	3	✅ Yes
Bottom	5	✅ Yes

• Condition B – Center Tie Rule

Diamond stirrups may also be generated if they are tied to a center bar.

This rule overrides the reinforcement count rule. If a center bar (Front/Back) - connection exists, diamond stirrups can be generated regardless of bar count.