RCC Structures Design
‘P’ is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The minimum stress ‘f’ on the beam subjected to a maximum bending moment ‘M’ is

f = (P/'- (Z/M)
f = (A/P) - (M/Z)
f = (P/A) - (M/Z)
f = (P/A) - (M/6Z)

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RCC Structures Design
According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

None of these
Stress in concrete × area of concrete + Stress in steel × area of steel
Stress in concrete × area of concrete
Stress in steel × area of steel

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