Reinforcing bars terminate at the face of support with standard ninety-degree or one-hundred-eighty-degree hooks. The development length ldh is measured from the critical section to the outside of the hook. Tensile force capacity is indicated as T equals Asfy relative to the support face. Standard hook dimensions are governed by bar diameter D and reference the standard hook and tie details sheet.
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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