Calculate the required development length for a #6 rebar in 3000 psi concrete with standard hooks in a seismic zone. The rebar has fy = 60,000 psi.
Correct Answer
D) 30 inches
Using CBC provisions for development length: ld = (fy × db)/(25 × √f'c) = (60,000 × 0.75)/(25 × √3000) = 30 inches for #6 rebar in 3000 psi concrete in seismic applications.
Why This Is the Correct Answer
Using CBC provisions for development length: ld = (fy × db)/(25 × √f'c) = (60,000 × 0.75)/(25 × √3000) = 30 inches for #6 rebar in 3000 psi concrete in seismic applications.
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