Design of Rigid Pavement for Birur Samasagi Road (SH-76) from Km 109.000 to 112.000 in Davangere Taluka Davangere District as per IRC-58-2002

Design Inputs

1. Tyre Pressure (q)= 8kg/cm2

2. Load Safety Factor (LSF)= 1.2

3. 98th percentile axle load (P)= 8000kg

4. Design Period(n)=30Years

5. No. of CV the direction of predominant traffic (A)= 4657

6. Traffic Growth Rate(r)= 7%

7. Soaked CBR of subgrade= 5.5%

8. K value of subgrade soil (ksubgrade)= 4.35kg/cm3

9. Thickness of DLC=100mm

10. Effective k of DLC sub-base (keffective)= 17.65kg/cm3

11. Flexural Strength of Concrete (S)= 45kg/cm2

12. Modulus of Elasticity of concrete (E)= 300000 kg/cm2

13. Poisson's ratio (m)=0.15

14. Coefficient of thermal expansion (a)= 0.00001/ 0C

15. Spacing of contraction joints (L)= 3.75m

16. Width of slab (B)= 3.5m

Proposed Pavement Thickness:

Pavement Quality Concrete (PQC) =300mm

Dry Lean Concrete (DLC) =100mm

Granular Sub-Base (GSB) =150mm

Subgrade=500mm

Dowel Bar Details

Provide dowel bar of 32mm dia at 250mm spacing

Length of Bar is 500mm

No of bars proposed are 4

Tie Bar Details

Provide dowel bar of 12mm dia at 380mm spacing

Length of Bar is 580mm

Cross Section & Plan

Joint Details