RCC Structures Design A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n?. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is Atft (d - n/3) bn (fc/2) (d - n/3) All listed here ½ n₁ (1 - n₁/3) cbd² Atft (d - n/3) bn (fc/2) (d - n/3) All listed here ½ n₁ (1 - n₁/3) cbd² ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If a bent tendon is required to balance a concentrated load W at the centre of the span L, the central dip h must be at least WL/P WL/3P WL/4P WL/2P WL/P WL/3P WL/4P WL/2P ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Dimensions of a beam need be changed if the shear stress is more than 20 kg/cm² 25 kg/cm² 15 kg/cm² 10 kg/cm² 20 kg/cm² 25 kg/cm² 15 kg/cm² 10 kg/cm² 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 40 45 30 35 40 45 30 35 ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design With usual notations the depth of the neutral axis of a balanced section, is given by t/mc = (d + n)/n t/mc = (d - n)/n mc/t = n/(d - n) mc/t = (d - n)/n t/mc = (d + n)/n t/mc = (d - n)/n mc/t = n/(d - n) mc/t = (d - n)/n ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design In a beam the local bond stress Sb, is equal to Shear force/(Leaver arm × Total perimeter of reinforcement) Total perimeter of reinforcement/(Leaver arm × Shear force) Leaver arm/(Bending moment × Total perimeter of reinforcement) Leaver arm/(Shear force × Total perimeter of reinforcement) Shear force/(Leaver arm × Total perimeter of reinforcement) Total perimeter of reinforcement/(Leaver arm × Shear force) Leaver arm/(Bending moment × Total perimeter of reinforcement) Leaver arm/(Shear force × Total perimeter of reinforcement) ANSWER DOWNLOAD EXAMIANS APP
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