Question

The point loads are placed at the fixed positions shown in the figure and they are live loads. A B D E 12 2 12 k W C(centre) a Asc b f'= 32 Mpa f'es= 3 MPa fsy = 500 MPa Es = 200 GPa Ex = 28600 MPa a Cross section The following values are used for the question. • 11 = 3 m load before cracking • 12 = 2.5 m • P=2 kN • a = 50 mm • G= 2 kN/m • b = 500 mm . Q = 0 kN/m • c = 450 mm • Asc = 620 mm2 • Ast = 3200 mm? load after cracking • P= 15 kN • G = 15 kN/m • Q = 15 kN/m
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Answer 1

(2n-1) AC Som 1 620 mm 500 K 450mm - 3200 mm - * 450 mm MAS Es 2008103 28600 location of from top NA 450 ** +((2x2) –] (620) - 50 ) = (7x3200) (50-01) +8060 X - 40 3000 - 12.32x10 + 22400 N ñ 225x2 + 3046082 12.723X106 co on solving 179.55 mm

of inentia Ir cocking moment 1 +1 Iar (450) (179.55) [(3x7) -1] (620) (129.55-50)? + 7 x 3200 (590-179.55 )? 868.268100 + 135.27X100 + 10 3074,023 X 106 Irr 4077.553 X 106 mmt

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