For field rivets the maximum permissible stresses in rivets and bolts as given in codes are reduced by:
Explanation:
(i) As per IS 800:1984 Recommendations, Maximum permissible stress in rivets and bolts
Types of fastener |
Axial tension (Mpa) |
Shear (Mpa) |
Bearing (Mpa) |
(i) Power-driven Shop rive Field Rivet |
100 90 |
100 90 |
300 270 |
(ii) Hand driven rivets |
8 |
80 |
270 |
(iii) Closed tolerance and turned bolts |
120 |
100 |
300 |
(iv) Bolt in clearance holes |
120 |
80 |
250 |
So from the table, it is clear that For field rivets the maximum permissible stresses in rivets and bolts as given in codes are reduced by 10%.