Some engineers in the practice are releasing the moment at end of the beam in case of not satisfying development length ! Do you agree ?
As per ACI code , for similar cases , you have to satisfy minimum development length (standard hook , mechanical anchorage , reducing bars dia … etc ) and releasing the end moment will not cancel this requirement .
some engineers will suggest increase As,prov to reduce the required development length ! But this is not permitted by ACI318-19 for standard hook or non continuous end that require to develop fy .
Also take care , as per ACI code you shall satisfy minimum Ldh (length of horizontal portion of standard hook ) so most likely you can not do that for 20 cm column width because the width is not enough to satisfy Ldh
