ADVANTAGES AND DISADVANTAGES OF WELDED OVER RIVETED JOINTS

      

 

 

    Advantages:

• The welded structures are usually light in weight compared to riveted structures. This is due to the reason, that in welding, gussets or other connecting components are not used.

• The welded joints provide high efficiency, which is not possible in the case of riveted joints.

• Alterations and additions can be made easily in the existing structures.

• Welded structures are smooth in appearance, therefore it looks pleasing.

• A welded joint has a great strength. Often a welded joint has the strength of the parent metal itself.

• It is easily possible to weld any part of a structure at any point. But riveting requires enough clearance.

• The process of making welding joints takes less time than the riveted joints.

• Shape like cylindrical steel pipes can be easily welded. But they are difficulty for riveting.

• The welding provides very strong joints. which can’t be bended easily. This is in line with the modern trend of providing rigid frames.

• In welded connections, the tension members are not weakened as in the case of riveted joints.

    Disadvantages:

• For making weld joints using weld symbols requires a highly skilled labour and supervision.

• Since there is an uneven heating and cooling in welding process during fabrication, therefore the members may get distorted or additional stresses may develop.

• Since no provision is kept for expansion and contraction in the frame, therefore there is a possibility of cracks developing in it.

• The inspection of defects in welding work is more difficult than riveting work.