RCC Structures Design An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm φ placed symmetrically along the circumference. If it carries a load of 40,000 kg axially, the stress is 250 kg/cm² 100 kg/cm² 49.9 kg/cm² 175 kg/cm² 250 kg/cm² 100 kg/cm² 49.9 kg/cm² 175 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good (t + c)/n = (d + n)/n mc/t = n/(d - n) (m + c)/t = n/(d + n) mc/t = (d - n)/t (t + c)/n = (d + n)/n mc/t = n/(d - n) (m + c)/t = n/(d + n) mc/t = (d - n)/t ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If ‘p’ is the net upward pressure on a square footing of side ‘b’ for a square column of side ‘a’, the maximum bending moment is given by M = pb (c - a)/4 M = pb (b - a)²/8 M = pb (b - a)²/4 M = pb (b + a)/8 M = pb (b + a)/8 M = pb (c - a)/4 M = pb (b - a)²/8 M = pb (b - a)²/4 M = pb (b + a)/8 M = pb (b + a)/8 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is 30 35 40 45 30 35 40 45 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or 18 bar diameters 24 bar diameters 30 bar diameters 12 bar diameters 18 bar diameters 24 bar diameters 30 bar diameters 12 bar diameters ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed 10 mm 20 mm 25 mm 15 mm 10 mm 20 mm 25 mm 15 mm ANSWER DOWNLOAD EXAMIANS APP