A cement concrete pavement has a thickness of 20 cm and has 2 lanes of 7.2 m with a longitudinal joint along the centre. Assuming allowable working stress of steel in tension = 1400 kg/cm2. Unit weight of concrete = 2400 kg/m3. Co-efficient of friction of = 1.5. Allowable bond stress in deformed bars = 24.6 kg/cm2. Find the length and spacing of tie bar if diameter of bar is 1 cm.
1
28. 45 cm length at spacing of 425.5 mm
2
38. 45 cm length at spacing of 333 mm
3
28. 45 cm length at spacing of 333 mm
4
38. 45 cm length at spacing of 425.5 mm