A short column 20 cm x 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed
Options
A. 4120 kg
B. 41, 200 kg
C. 412, 000 kg
D. none of these.
Correct Answer
41, 200 kg
More questions
1. Lami's theroem states that
Options
A. three forces acting at a point are always in equilibrium
B. if three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium
C. three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
D. three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two
Correct Answer: three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
2. If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is
Correct Answer: at any point within the cross-section
7. If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is
Actually, permissible compressive stress in concrete = .4*FCK=40kg/cm^2. Permissible compressive stress in steel = *fy=1300 kg/cm^2. From safe load of column, P= *Asc+*Ast. 40*380+1300*20. = 41200kg