Check the anchorage of the top corner main longitudinal reinforcement (Bars X) a

Question

Check the anchorage of the top corner main longitudinal reinforcement (Bars X) at the critical section (face of the support). For each case below, determine the required development length and indicate whether the bar can be developed within the available embedment length.

a) Check if the hooked end of the bar can be developed in the column using ACI 25.4.3

b) Check if the straight bar can be developed into the span of the beam using either ACI 25.4.2.2 or ACI 25.4.2.3

PI,,P 9 in Bar X Bar Y 6 ft. 0 in. Note: Not allreinforcement is shown. Also, spacing of Bars Yis not necessarily representative of actual spacing. 13 in 13 in. Bar X Bar X 24 in Bar 30 in Section A-A

Explanation / Answer

Anchorage requirements as per 25.4.3.3 of ACI 318 14 Satisfies

a) the first tie encloses the bent portion of hook (within 2d of the outside of the 90degree bend)

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