51.
The spacing of transverse reinforcement of column is decided by the following consideration.

52.
‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is

54.
A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end; the maximum hogging moment will be

56.
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and $${\sigma _{\text{c}}}$$ are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

57.
If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area Ast of the steel required for an economic section, is

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