RCC Structures Design The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation. m = 3500/3C m = 1400/3C m = 700/3C m = 2800/3C m = 3500/3C m = 1400/3C m = 700/3C m = 2800/3C ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge Is increased by Pe/Z Is decreased by Pe/Z Is increased by PZ/e Remains unchanged Is increased by Pe/Z Is decreased by Pe/Z Is increased by PZ/e Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design 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 D = W (a² - b²)/8a²bq D = W (a² - b²)/4a²bq D = W (a - b)/4a²bq D = W (a² - b²)/4abq D = W (a² - b²)/8a²bq D = W (a² - b²)/4a²bq D = W (a - b)/4a²bq D = W (a² - b²)/4abq ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design As per IS : 456, the reinforcement in a column should not be less than 0.8% and not more than 8% of cross-sectional area 0.6% and not more than 6% of cross-sectional area 0.5% and not more than 5% of cross-sectional area 0.7% and not more than 7% of cross-sectional area 0.8% and not more than 8% of cross-sectional area 0.6% and not more than 6% of cross-sectional area 0.5% and not more than 5% of cross-sectional area 0.7% and not more than 7% of cross-sectional area 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 mc/t = n/(d - n) t/mc = (d + n)/n mc/t = (d - n)/n t/mc = (d - n)/n mc/t = n/(d - n) t/mc = (d + n)/n mc/t = (d - n)/n ANSWER DOWNLOAD EXAMIANS APP
RCC Structures Design Lapped splices in tensile reinforcement are generally not used for bars of size larger than 30 mm diameter 24 mm diameter 18 mm diameter 36 mm diameter 30 mm diameter 24 mm diameter 18 mm diameter 36 mm diameter ANSWER DOWNLOAD EXAMIANS APP
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