As per IS:456 - 2000, development length Ld of bar is given by ______ ; where Φ = nominal diameter of bar, σs, = stress in bar at the section considered at design load, τbd = design bond stress.
1
Ld = Φ τbd / 4 σs
2
Ld = Φ σs / 8 τbd
3
Ld = Φ τbd / 8 σs
4
Ld = Φ σs / 4 τbd