7.3 Compute the development length required for the top no. 9 bars of a cantilever beam...

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7.3 Compute the development length required for the top no. 9 bars of a cantilever beam that extend into the column support if the bars are a. Straight b. Have a 90° hook at the end c. Have a 180° hook at the end fc The bars are confined with no. 3 stirrups spaced at 5 in. and have a clear cover of 2.0 in. Use = 4ksi and f₁ = 60 ksi. (Clear spacing = 2.5 in.) 7.5 Repeat Problem 7.3 when fr = 3 ksi and f, = 40 ksi. 7.3 Compute the development length required for the top no. 9 bars of a cantilever beam that extend into the column support if the bars are a. Straight b. Have a 90° hook at the end c. Have a 180° hook at the end fc The bars are confined with no. 3 stirrups spaced at 5 in. and have a clear cover of 2.0 in. Use = 4ksi and f₁ = 60 ksi. (Clear spacing = 2.5 in.) 7.5 Repeat Problem 7.3 when fr = 3 ksi and f, = 40 ksi.

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