A. (Area of the column A × Safe punching stress)/Load on column A
B. (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)
C. (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)
D. None of these
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Related Mcqs:
- If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth D. of the footing from punching shear consideration, is____________________?
- A. D = W (a – b)/4a²bq B. D = W (a² – b²)/4a²bq C. D = W (a² – b²)/8a²bq D. D = W (a² – b²)/4abq...
- If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads______________?
- A. y = L – (l – ) ) B. y = L/2 + (l – C. y = L/2 – (l + ) D. y = L/2 – (l – )...
- If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete footing from walls, is a cm, the depth D of footing is_______________?
- A. D = 0.0775 a B. D = 0.775 a C. D = 0.775 a D. D = 0.775 a2...
- In a combined footing if shear stress exceeds 5 kg/cm2, the nominal stirrups provided are______________?
- A. 6 legged B. 8 legged C. 10 legged D. 12 legged...
- In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are________________?
- A. 6 legged B. 8 legged C. 10 legged D. 12 legged...
- Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of_______________?
- A. 0.1 L from the outer edge of column B. 0.1 L from the centre edge of column C. Half the distance of projection D. One -fourth the distance of projection...
- In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at
- A. Less loaded column B. More loaded column C. A point of the maximum shear force D. A point of zero shear force...
- If the modular ratio is , steel ratio is and overall depth of a beam is , the depth of the critical neutral axis of the beam, is___________________?
- A. [m/(m – r)] d B. [m/(m + r)] d C. [(m + r)/ m] d D. [(r – m)/m] d...
- An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres 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_______________?
- A. 8.3 kg/cm2 B. 7.6 kg/cm2 C. 21.5 kg/cm 2 D. 11.4 kg/cm2...
- If is the net upward pressure on a square footing of side for a square column of side , the maximum bending moment is given by_________________?
- A. B.M = pb (c – a)/4 B. B.M = pb (b – a)²/4 C. B.M = pb (b – a)²/8 D. B.M = pb (b + a)/8...
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