Structural · S-V4KQW

Concrete Beam Construction Joint and Reinforcement Detail

Materials

Elements

Beams Foundations / Footings Reinforcing

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A concrete beam construction joint requires the joint to be located within the middle one-third of the span between a first pour and second pour. All primary reinforcing steel continues uninterrupted across the joint interface, supplemented by interlocking shear keys and additional ties. Tie spacing is designated as one number six bar each way for members up to seven inches wide, two number six bars each way for members eight to twenty inches wide, four number six bars each way for members twenty to forty inches wide, and six number six bars each way for members wider than forty inches, with number six bars at twelve inches each way specified for mat footings.

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