Civil Engineering - RCC Structures Design

Exercise :: RCC Structures Design - Section 4

6.

Pick up the correct statement from the following:

 A. Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling B. Lateral reinforcement prevents the shearing of concrete on diagonal plane C. Lateral reinforcement stops breaking away of concrete cover, due to buckling D. Lateral reinforcement in R.C.C. columns, is kept not less than 5 mm diameter E. All the above.

Explanation:

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7.

The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is

 A. 1400 kg/cm2 B. 190 kg/cm2 C. 260 kg/cm2 D. 230 kg/cm2

Explanation:

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8.

If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as

 A. B. C. D. E.

Explanation:

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9.

If A is the sectional area of a prestressed rectangular beam provided with a tendon prestressed by a force P through its centroidal longitudinal axis, the compressive stress in concrete, is

 A. B. C. D. E.

Explanation:

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10.

According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than

 A. 5 cm B. 10 cm C. 15 cm D. 20 cm E. 25 cm