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Unformatted text preview: areas: (a) s A = three No. 8 bars (b) s A = four No. 8 bars 3. A rectangular concrete beam is limited by architectural considerations to a maximum total depth of h = 20 in. The beam has a span of 30 ft and is subjected to a service uniform live load of 1650 lb/ft. Allow 3 in. to the center of the bars from the tension face of the beam. Material strengths are c f = 4000 psi and y f = 60,000 psi. Select reinforcement to provide the needed areas, and show a sketch of your final design, including provision for stirrups. Observe ACI specifications for concrete cover and rebar distance....
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- Spring '08