Design a 20-inch wide reinforced concrete rectangular beam having a simple span length of 32 ft, Wp=2 k/ft (not including beam weight), WL=1.8 k/ft and p=1/2 pb , using the following: 1- Assume beam weight=640 Ib/ft; 2- Round up the value of “d" to the nearest 0.5 inches, and use h=d+2.5; 3- Use #10 for beam reinforcement; fy=60,000 psi, f'c=4000 psi; 4- Assume concrete weight=150 lb/ft3 Show sketch of beam cross section and dimensions, including bar sizes, arrangement, and spacing. Be neat.
Design a 20-inch wide reinforced concrete rectangular beam having a simple span length of 32 ft, Wp=2 k/ft (not including beam weight), WL=1.8 k/ft and p=1/2 pb , using the following: 1- Assume beam weight=640 Ib/ft; 2- Round up the value of “d" to the nearest 0.5 inches, and use h=d+2.5; 3- Use #10 for beam reinforcement; fy=60,000 psi, f'c=4000 psi; 4- Assume concrete weight=150 lb/ft3 Show sketch of beam cross section and dimensions, including bar sizes, arrangement, and spacing. Be neat.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Design Task for a Reinforced Concrete Slab**
Design a 14-ft simply supported reinforced concrete slab to carry a uniform dead load (excluding self-weight) of 110 psf and a uniform live load of 90 psf, using the following parameters:
1. Concrete compressive strength (f'c) = 4 ksi, steel yield strength (fy) = 60 ksi, adhering to ACI Code limitations.
2. Use #4 bars for the Main steel, and #3 bars for the Temperature and Shrinkage steel.
3. Ensure a rebar cover of 3/4 inch.
Provide a detailed sketch of the slab showing its thickness, span, Main steel, and Temperature and Shrinkage steel with their spacings.
Transcribed Image Text:**Design a 20-inch Wide Reinforced Concrete Rectangular Beam**
**Specifications:**
1. **Span Length:** 32 ft
2. **Design Load:**
- Dead Load (W_D) = 2 k/ft (excluding beam weight)
- Live Load (W_L) = 1.8 k/ft
- ρ = 1/2 ρ_b
**Design Parameters:**
1. **Assumed Beam Weight:** 640 lb/ft
2. **Depth Adjustment:**
- Round up the value of "d" to the nearest 0.5 inches
- Use the formula h = d + 2.5
3. **Reinforcement:**
- Use #10 bars for beam reinforcement
- Yield Strength (f_y) = 60,000 psi
- Concrete Strength (f'_c) = 4000 psi
4. **Concrete Weight:** 150 lb/ft³
**Instructions:**
- **Sketch Requirements:** Provide a detailed sketch of the beam cross-section including the following:
- Bar sizes and arrangement
- Spacing of reinforcement bars
- Ensure that the sketch is neat and clearly labeled.
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