Reinforcing bars terminate with standard 90-degree or 180-degree hooks anchored past the face of support. The development length for standard hooks is measured as ldh from the critical section to the outside of the hook bend. Hook geometry includes bar diameter D and tensile force T equal to Asfy.
REINFORCING BAR T=Asfy FACE OF SUPPORT FACE OF SUPPORT STD HOOK 90° HOOK 180° HOOK T=Asfy D D ldh FOR STANDARD HOOK SIZES, SEE "STANDARD HOOK AND TIE DETAILS"
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