Structural · S-DBGXY

Straight Bars at a Joint

Materials

Concrete Reinforced Concrete

Elements

Columns Walls Foundations / Footings Anchors / Embeds Reinforcing

Connections

Rebar Splice / Development Embed Plate

About this detail

Standard hook details and straight bar embedment requirements at a concrete joint for moment frames. Straight bars terminated at a joint must pass through the confined core of a seismic column or boundary element, with any portion outside the core increased by a factor of 1.6. Standard hook details specify a minimum two-inch end cover and a minimum side cover of two and one-half inches, with embedment lengths varying based on bar size from number three through number eleven bars. Additional notes outline modification factors for lightweight concrete, higher grade reinforcing steels including grade seventy-five and grade eighty, and bar bundles. Hooked bars must extend as far as possible to the opposite face while maintaining the specified end cover and embedment.

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