3.3. Design Approach

Try these first

1. 1.

   What is the primary difference between bolted and welded connections?

   Hint

   Consider how each type holds the structure together.

2. 2.

   What type of weld has a triangular cross-section?

   Hint

   Think about the shape of the weld.

3. 3.

   Which type of connection uses high-strength bolts for load transfer?

   • Welded
   • Bolted
   • Riveted

   Hint

   Consider the connection that involves bolts.

4. 4.

   True or False: Fillet welds are commonly used in situations needing rigidity.

   • True
   • False

   Hint

   Think about where welds are applied in strong structures.

5. 5.

   A structural engineer needs to design a series of connections for a new bridge. Describe the factors that influence the decision to use bolted versus welded connections.

   Hint

   List the pros and cons of each connection type.

6. 6.

   You are tasked with ensuring that a welded connection can withstand a tension force of 40 kN with an allowable weld strength of 250 MPa. Calculate the throat thickness needed if the weld length is 200 mm.

   Hint

   Use the formula: Throat thickness = Force / (Weld strength × Length).