140 Mm 100 Mm 150 Mm 150 Mm 150 Mm Figure Q2 B 150 Mm B As Shown In Figure Q2 B A Concrete Floor Slab Is Reinforce 1 (16.02 KiB) Viewed 30 times
140 mm 100 mm 150 mm 150 mm 150 mm FIGURE Q2(b) 150 mm
(b) As shown in Figure Q2(b), a concrete floor slab is reinforced by 16 mm diameter steel rods placed 38 mm above the lower face of the slab and spaced 150 mm on centres. The modulus of elasticities are 25 GPa and 200 GPa for concrete and steel, respectively. Knowing that a bending moment of 4.5 kNm is applied to each 0.3 m width of the slab, determine: (i) The maximum stress in the concrete. (ii) The stress in the steel. (5 marks) (5 marks)
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