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RCC Structures Design

RCC Structures Design
The weight of a foundation is assumed as

10% of wall weight
7% of wall weight
12% of wall weight
5% of wall weight

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RCC Structures Design
A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm², the area of steel required, is

14 cm²
16 cm²
17 cm²
15 cm²

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RCC Structures Design
If jd is the lever arm and ΣO is the total perimeter of reinforcement of an R.C.C. beam, the bond stress at the section having Q shear force, is

Q/2jdƩO
Q/jdƩO
2 × Q/jdƩO
Q/3jdƩO

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RCC Structures Design
If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width

R + T
√(R² + T²)
R - T
T - R

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RCC Structures Design
In a pre-stressed beam carrying an external load W with a bent tendon is having angle of inclination ? and pre-stressed load P. The net downward load at the centre is

W - 2P sin θ
W - P cos θ
W - P sin θ
W - 2P cos θ

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RCC Structures Design
An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 meters and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is

21.5 kg/cm²
21.5 kg/cm²
8.3 kg/cm²
7.6 kg/cm²

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