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Stirrup/Tie Hooks

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JohnRwals

JohnRwals

Structural
Jul 8, 2020
146
US
Manual of Standard Practice, 29th edition was released by CRSI.
When I looked over dimensions of hooks and bend diameters, I found these numbers changed.
I thought ACI 318 did not change anything related with this topic.
Can anybody explain what/why this happened?
Typos?
Or, am I using old info?
Rebar_Hooks-1_w5vbma.jpg

Thanks!

JRW.
 
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John,
Good catch. Comparing with ACI 318-14, table 25.3.2, min inside bend dia = D = 4*db.
Something sure appears funny. As an example, the D dimension for #4 should be 4 * 0.5" = 2.0" (not 2.5" as shown).
CRSI is otherwise usually pretty good with their publications.
 
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