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RCC Structures Design

RCC Structures Design
The diameter of main bars in R.C.C. columns, shall not be less than

10 mm
12 mm
15 mm
11 mm

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RCC Structures Design
If the modular ratio is ‘m’, steel ratio is ‘r’ and overall depth of a beam is ‘d’, the depth of the critical neutral axis of the beam, is

[(m + r)/m] d
[(r - m)/m] d
[m/(m + r)] d
[m/(m - r)] d

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RCC Structures Design
If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:

(1 - C) mf + eE
(C - 1) mf - eE
(1 - C) mf - eE
(C - 1) mf + eE

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

260 kg/cm²
190 kg/cm²
1400 kg/cm²
230 kg/cm²

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RCC Structures Design
A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm² and 300 kg/cm², the Safe load on the column, should not exceed

412,000 kg
4,120 kg
None of these
41,200 kg

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RCC Structures Design
Distribution reinforcement in a simply supported slab, is provided to distribute

Temperature stress
Shrinkage stress
All listed here
Load

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