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RCC Structures Design

RCC Structures Design
A raft foundation is provided if its area exceeds the plan area of the building by

50 %
10 %
40 %
20 %

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RCC Structures Design
Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to

Distance of the C.G. of the area from its neutral axis
Shear force
Area of the section
Moment of the beam section about its neutral axis

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RCC Structures Design
The width of the rib of a T-beam, is generally kept between

1/3 to 1/2 of rib depth
1/3 to 2/3 of rib depth
1/7 to 1/3 of rib depth
1/2 to 3/4 of rib depth

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RCC Structures Design
If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge

Is increased by PZ/e
Remains unchanged
Is decreased by Pe/Z
Is increased by Pe/Z

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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/3jdƩO
2 × Q/jdƩO
Q/2jdƩO
Q/jdƩO

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RCC Structures Design
An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at

55°
45°
25°
35°

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