The ring beam of a Intze tank carries a hoop tension of 120 kN.The beam cross-section is 250 mm wide and 400 mm deep, and it is reinforced with 4 bars of 20 mm dia of Fe – 415 grade. The modular ratio of concrete is 10. The tensile stress (N/mm2) in the concrete is
1
1.02
2
1.07
3
1.20
4
1.32