A rectangular concrete column cross-section up to 18 by 18 inches reinforced with longitudinal rebar and closed ties. Crossties are arranged with alternating sides of ninety-degree hooks typically. Hook extension details specify a 135-degree bend with a minimum extension of six bar diameters or three inches, whichever is greater.
"DEPTH" "WIDTH" CLOSED TIE CROSSTIES ALTERNATE SIDES OF 90 DEGREE HOOK TYP. 135° 6db 3" MIN. 6db 3" MIN. LONGITUDINAL REINFORCEMENT UP TO 18"x18"
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