Identification of Cracks

1

a) by above images failure at joint, cloumn and beam

the mistake may be the bottom reinforcemet of beam not properly inserted to column, so failed to transfer load from beam to column and caused the effect this.

if it is caused in single stored building , alternate method can be done.

b)By image we can say, proper vibration is not done and it may caused steel corosion and bonding is missed.

can be repaired, we need to replace,

c) joint failure due to week beam,

cannot be repaied 

2)

a)the column failure, it is due to buckling

can not be repaird

b)colum failure due to buckling

c)due to strong beam and week column or construction is started before the gaining of strength,loads are acted this cause the result.