In: Civil Engineering
The service load bending moments on a beam are 128 kip-ft for dead load and 107 kip-ft for live load. The beam is 12 in. wide, f’c is 3000 psi and fy is 60 ksi. Determine Mu, Mt, p, R, the depth of the beam and the As of tensile reinforcing required. How many no. 8 bars or No. 10 bars would have the required As?
Recent version of ACI 318 only specify minimum and maximum rebar ratio . The design have to choose a steel ratio based on his experience ,for a target steel strain value in rebar or based on recomended formula by older version of ACI 318. Once rebar ratio is choosed d ,As value changes accrodingly.
if this question is multilpe choice question you have to be specific in selecting rebar ratio. pleses provide the rule you are following while selecting rebar ratio. i will work for that .
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