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The major stress is caused due to wheel load and temperature, remaining all are the minor stresses.
The modulus of sub grade reaction is the pressure per deflection unit, it was obtained by Westrergaard for deflection analysis.
The deflection is assumed as 0.125 in Westergaard analysis, it is constant value for the deflection for modulus of sub grade reaction.
The Poisson’s ratio of concrete is mostly assumed as 0.15 however it may lie between 0.13 and 0.15.
The deflection is dependent on the flexural strength of the material on how it breaks.
The radius of relative stiffness mainly depends on the soil sub grade reaction.
.If any load is placed at interior away from all edges then it is called
The loading that takes place inside of the pavement away from all edges is called as interior loading.
The loading that doesn’t exist is exterior loading because a load cannot be outside of pavement.
The distance at which the crack is developed is given by
The distance is given by the equation 2.58al, where a is the radius of wheel distribution and l is radius of relative stiffness.
Warping stress coefficient charts were prepared by
The charts were prepared by Bradbury, assuming it depends on seasonal coefficient and radius of relative stiffness.
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