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2. A singly reinforced rectangular section having a cross-section b 300 mm and d = 600 mm is reinforced by 10 N32 bars. Assum

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As = 108804 = 8040 mm mur 22 = 1-0.003 f but 0.67 <q so.85 El-0.003 X 32 = 0.904 Lo=0.85 8 = 1.05-0.007 f but 0.6758 40.85 E& t 8. kub 11 B fgey 0.85 432 X 0.826 40.545 500 = 0.0244 0.0457 8 8040 Pri bd 300 x 600 therefore the section is over-reinfoक By assuming me layer of sted, dado Kuo ku = 0.649 = 1.19-13 kno 10/12 =119- 13 x0.649/12 -0.487 but for N class 0.65 0 S 0.

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