QUESTION 2 [25 Marks] Figure 2 shows a vertical section through a simply supported, reinforced concrete staircase. The s

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Question 2 25 Marks Figure 2 Shows A Vertical Section Through A Simply Supported Reinforced Concrete Staircase The S 1 (76.33 KiB) Viewed 16 times

QUESTION 2 [25 Marks] Figure 2 shows a vertical section through a simply supported, reinforced concrete staircase. The staircase is 1,45 m wide and is supported at both ends. The staircase must be able to withstand an imposed load of 2,5 kN/m² and will be cast monolithically. Use Grade 20 concrete with mild steel reinforcement. Calculate: (8) (a) The total design, dead and imposed loads (factored) (hint: unit kN) (b) The maximum bending moment (3) (c) The value of the constant K and distance of lever arm (Z) (Ø 12 mm and cover 25 mm) (7) (d) The size and spacing of suitable longitudinal reinforcement (4) (e) The size of suitable transverse reinforcement (3) LANDING 220 125 Span=2000 Figure 2: Staircase 160 FLOOR