Rivet connection

STEEL STRUCTURE, JOINTS

1. Seminar on Connection By Manish Kumar Anshu

2. Connection :- The various members of a steel structure like tension member, compression member, and flexural member are connected by connection. Connection are of following types- Rivet Bolts Pins Welds

3. Riveted connection The cylindrical portion of the rivet is called head or body and lower portion of shank is known as tail. Rivet are made of mild steel or High tensile steel. Rivet consist of head and shank.

4. Ease of riveting processes. Rivet connection is permanent in nature. Cheaper fabrication cost. Low maintenance cost. Rivet connection is possible without electricity in any area. Dissimilar metal can also be jointed even non metallic joint are possible with rivet joint. Necessity of pre-heating the rivet prior to driving. High level of noise. Skilled work necessary for inspection of connection. Labor cost is high. Advantage of Rivet Disadvantage of Rivet

5. Types of rivet Rivet are following types based on shape of rivet heads:- i ) Snap Headed Rivet

6. ii) Pan Headed Rivet

7. iii) Flat counter sunk rivet

8. iv)Round counter sunk rivet

9. B) Rivet are following type based on method and place of driving of rivets. Power Driven shop rivet Hand Driven shop rivet Field rivet Hot rivet Cold driven rivet

10. Pitch Rivet line Or, gauge line Gauge length Diagonal pitch Staggered pitch End distance P P Edge distance

11. Types of Rivet Joints Riveted joints are following types:- Lap joint Butt joint Lap joint :- In lap joint the members are connected together by overlapping. The jointing of members are done by using one row of rivet or more than one row of rivet. There are following types of Lap Joint- Single riveted lap joint :- A lap joint in which only one row of rivet is used is known as single riveted lap joint.

12. II. Double riveted lap joint :- A lap joint in which two row of rivet are used is known as double riveted lap joint. Double riveted lap joint Rivet

13. ii) Butt joint :- In butt joint two plates are connected end to end and cover plates is provided either on one side or both side of the main plates. If cover plates is placed on one side of the main plate it is known as single cover butt joint. If the cover plates are placed on both side of main plate it is known as double cover butt joint. Cover plates Rivet

14. There are following types of Butt joint - Single riveted single cover butt joint :- Single riveted double cover butt joint :- P P P P P P P P

15. iii. Double riveted single cover butt joint :- iv. Double riveted double cover butt joint :- P P P P P P P P

16. Failure of a riveted joint Shear failure of rivets :- when shear stress in rivet exceed the permissible shear stress of rivet.

17. Failure of a riveted joint Shear failure of plates :- when rivet are placed very near to the edge of plate than this failure can be a avoided by providing sufficient edge distance

18. Failure of a riveted joint Tearing / Tension failure of plates :- At the failure location tensile stress in plates exceeds the permissible rivets.

19. Failure of a riveted joint Bearing failure of plates :- When bearing stress in plates exceeds the permissible limit than crossing of plate takes place. Bearing failure of rivets :- When plates are stronger than rivets in bearing than bear is a possibility that rivet may get crushed around the half circumference.

20. Thanks!