A square concrete column cross section features longitudinal reinforcement bars positioned at the perimeter and interior intersections, secured by an outer closed tie and internal crossties. Crossties alternate sides with 90-degree hooks typical, while hook extensions maintain a minimum of six bar diameters or three inches. Dimensions indicate a 24-inch by 24-inch column profile.
"DEPTH" "WIDTH" CLOSED TIE 24"x24" CROSSTIES ALTERNATE SIDES OF 90 DEGREE HOOK TYP. 135° 6db 3" MIN. 6db 3" MIN. LONGITUDINAL REINFORCEMENT
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