4. Design a stair slab spanning longitudinally and set into pockets in two supporting beams. Tread = 300 mm, riser = 175 mm, no. of steps, ns = 10, L = 3.2 m, H = 1.75 m. Live load = 4.8 kPa, f'c = 21 MPa, fy = 276 MPa, unit wt. of concrete = 23.54 kN/m³. Use $ 12 mm main bars and $ 10 mm temp. bars. Sketch reinforcement detail.
4. Design a stair slab spanning longitudinally and set into pockets in two supporting beams. Tread = 300 mm, riser = 175 mm, no. of steps, ns = 10, L = 3.2 m, H = 1.75 m. Live load = 4.8 kPa, f'c = 21 MPa, fy = 276 MPa, unit wt. of concrete = 23.54 kN/m³. Use $ 12 mm main bars and $ 10 mm temp. bars. Sketch reinforcement detail.
Chapter2: Loads On Structures
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Problem 1P
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Transcribed Image Text:4. Design a stair slab spanning longitudinally and set into pockets in two supporting beams. Tread = 300 mm,
riser = 175 mm, no. of steps, ns = 10, L = 3.2 m, H = 1.75 m. Live load = 4.8 kPa, f'c = 21 MPa,
fy = 276 MPa, unit wt. of concrete = 23.54 kN/m³. Use 12 mm main bars and 10 mm temp. bars.
Sketch reinforcement detail.
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