engineering recuitment ISRO Scientist Civil Mock Test Reinforced Concrete Structures Beams and Slabs Beams
The criteria for minimum and maximum area of tension steel requirement in reinforced concrete beams (singly reinforced) as per IS 456 : 2000 is respectively: (Notations: As - area of steel, b - breadth of beam, d - effective depth of beam, D - depth of beam, fy- characteristic yield strength of reinforcement)
1
\(\frac{{A{s_{min}}}}{{bd}} \ge \frac{{0.78}}{{{f_y}}},\frac{{A{s_{max}}}}{{bD}} \le 0.04\)
2
\(\frac{{A{s_{min}}}}{{bd}} \ge \frac{{0.85}}{{{f_y}}},\frac{{A{s_{max}}}}{{bD}} \le 0.04\)
3
\(\frac{{A{s_{min}}}}{{bd}} \ge \frac{{0.75}}{{{f_y}}},\frac{{A{s_{max}}}}{{bD}} \le 0.04\)
4
\(\frac{{A{s_{min}}}}{{bd}} \ge \frac{{0.8}}{{{f_y}}},\frac{{A{s_{max}}}}{{bD}} \le 0.05\)