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of the floor. Using ACI coefficients from Chapter 12, calculate the design moments and shears and design the slab, using a maximum tensile reinforce-

of the floor. Using ACI coefficients from Chapter 12, calculate the design moments and shears and design the slab, using a maximum tensile reinforce-

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 17P
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13.2. A reinforced concrete building floor system consists of a continuous one-way slab built monolithically with its supporting beams, as shown in cross section in Fig. P13.2. Service live load will be 6 kN/m². Dead loads include a 0.5 kN/m2 allowance for nonstructural lightweight concrete floor fill and sur- face, and a 0.5 kN/m² allowance for suspended loads, plus the self-weight of the floor. Using ACI coefficients from Chapter 12, calculate the design moments and shears and design the slab, using a maximum tensile reinforce- ment ratio of 0.006. Use all straight bar reinforcement. One-half of the positive-moment bars will be discontinued where no longer required; the other half will be continued into the supporting beams as specified by the ACI Code. All negative steel will be discontinued at the same distance from the support face in each case. Summarize your design with a sketch showing concrete dimensions, and size, spacing, and cutoff points for all reinforcement. Material strengths are f, = 420 MPa and f = 21 MPa. FIGURE P13.2 5.0 m 5.0 m End span Typical interior span 650 mm 450 mm 450 mm 450 mm
Transcribed Image Text:13.2. A reinforced concrete building floor system consists of a continuous one-way slab built monolithically with its supporting beams, as shown in cross section in Fig. P13.2. Service live load will be 6 kN/m². Dead loads include a 0.5 kN/m2 allowance for nonstructural lightweight concrete floor fill and sur- face, and a 0.5 kN/m² allowance for suspended loads, plus the self-weight of the floor. Using ACI coefficients from Chapter 12, calculate the design moments and shears and design the slab, using a maximum tensile reinforce- ment ratio of 0.006. Use all straight bar reinforcement. One-half of the positive-moment bars will be discontinued where no longer required; the other half will be continued into the supporting beams as specified by the ACI Code. All negative steel will be discontinued at the same distance from the support face in each case. Summarize your design with a sketch showing concrete dimensions, and size, spacing, and cutoff points for all reinforcement. Material strengths are f, = 420 MPa and f = 21 MPa. FIGURE P13.2 5.0 m 5.0 m End span Typical interior span 650 mm 450 mm 450 mm 450 mm
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