RCC Structures Design
Lapped splices in tensile reinforcement are generally not used for bars of size larger than

18 mm diameter
30 mm diameter
24 mm diameter
36 mm diameter

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RCC Structures Design
Based on punching shear consideration, the overall depth of a combined footing under a column A, is

(Area of the column A × Safe punching stress)/Load on column A
(Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)
None of these
(Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)

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