Steps

1. length of seat angle supporting the beam =bf
2. bearing length of seat angle (b) required at root line of beam=$\frac{R}{Tw\times(\frac{fy}{\gamma w})}$
3. Provide clearance=10mm
4. Assume size of seat angle on basis of bearing length as describe in unstiffened seat angle connection
5. outstanding leg of stiffner angle must provide the required …