Structural · S-3A794

Typical Concrete Coupling Beam Reinforcement Section

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A structural detail presents a concrete coupling beam cross-section with specific reinforcing bar layouts and clear cover requirements. Longitudinal reinforcement designated as 'a' is placed top and bottom with a 1 1/2-inch clear distance, while side faces maintain a 2 1/2-inch clear cover. Internal shear reinforcement consists of stirrup S1 combined with alternating consecutive crossties featuring 90-degree hooks. When the beam depth exceeds 36 inches, additional number 4 bars at a maximum 9-inch spacing are evenly added on each side face. Minimum clear distance between bars is governed by the bar diameter and must not be less than 1 inch.

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