Examination method for rationality of variability of continuously reinforced concrete
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[0051] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0052] see figure 1 with figure 2 , example:
[0053] First, determine the variability of parameters;
[0054] The tensile strength, elastic modulus, drying shrinkage strain, linear expansion coefficient and friction coefficient change between the surface layer and the base layer of concrete obey the normal distribution along the longitudinal direction of the road.
[0055] 2. Determine the change law of material parameters with time;
[0056] The change of concrete modulus with time is shown in formula a, the change of concrete tensile strength with time is shown in formula b, and the change of concrete dry shrinkage strain with time is shown in formula c:
[0057] E. c (t)=A(2-e -Bt -e -Ct ) / 145
[0058] [σ c ](t)=0.67A(2-e -Bt -e -Ct ) / 145
[0059] ε sh (t)=A(2-e -Bt -e -Ct )
[0060] In the formula, t is the curing time, the unit is...
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