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Problem 2: A rectangular concrete beam measures 350mm wide and has an effective depth of 425mm....

Problem 2: A rectangular concrete beam measures 350mm wide and has an effective depth of 425mm. Compression steel consisting of two # 25 is located 65mm from the compression face of the beam. If f ′ c=28MPa and fy = 420MPa, what is the design moment capacity of the beam, according to the ACI code, for the following alternative tensile steel area. (a) As = 3 # 32 bars in one layer, (b) As = 5 # 29 in two layers, (c) As = 6 # 32 bars in two layers? (Note: check for yielding of compression in each case.).

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Ally Wells answered 11 months ago
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