Question

IS 456-2000 recommends to provide certain minimum steel in a RCC beam

• A. To ensure compressive failure
• B. To avoid rupture of steel in case a flexural failure occurs
• C. To hold the stirrup steel in position
• D. To provide enough ductility to the beam

Answer 1

The correct option is B To avoid rupture of steel in case a flexural failure occurs

Min. tension reinforcement is provide to avoid the sudden fracture of steel due to transfer of full tension to steel on cracking of concrete when the beam is loaded.
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Note: As per IS : 456-2000
min. tension reinforcement
$\frac{A_{st}}{bd}=\frac{0.85}{f_y}$
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