SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

The permissible design stresses for an RCC Column under different conditions are given below:
1. If minimum eccentricity is considered to be Zero i.e. ${\mathrm{e}}_{\min }=0$
a. Permissible axial compressive stress in concrete = 0.45 ${\mathrm{f}}_{\mathrm{ck}}$
b. Permissible axial compressive stress in steel = 0.75 ${\mathrm{f}}_{\mathrm{y}}$
2. If minimum eccentricity effect is considered:
a. Permissible axial compressive stress in concrete = 0.4 ${\mathrm{f}}_{\mathrm{ck}}$
b. Permissible axial compressive stress in steel = 0.67 ${\mathrm{f}}_{\mathrm{y}}$
Note:
In RCC beam subjected to bending, shear and torsion, the permissible values in steel and concrete are:
a. Design strength of concrete in flexure = 0.45 ${\mathrm{f}}_{\mathrm{ck}}$
b. Design strength of Steel in tension = 0.87 ${\mathrm{f}}_{\mathrm{y}}$