Assembling a corner connection is easy to achieve with hairpins/U-links. You use 2 different heights of U-links for this, so that they slide in to each other easily. The difference in height is 2 x the diameter of the reinforcement (rounded down). The width of the concrete beam is added to the length. This also applies to any side reinforcement.
When making a T-connection, you also add the concrete beam width to the length. So lapping length + concrete beam width + some leeway (max. 100 mm) = length U-link.
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