7.5. K truss

Try these first

1. 1.

   What shape does a K truss resemble?

   Hint

   Think about the letter in the alphabet.

2. 2.

   Name one application of a K truss.

   Hint

   Consider buildings with large open roofs.

3. 3.

   What is the primary advantage of using a K truss?

   • Lower material cost
   • Increased flexibility
   • Improved aesthetics

   Hint

   Consider why engineers choose certain structures.

4. 4.

   True or False: K trusses can only be used in bridges.

   • True
   • False

   Hint

   Think about other structures you know.

5. 5.

   A K truss is designed to span 30 feet and support a load of 5000 lbs. Calculate the forces in each member if the truss uses materials with a tensile strength of 35,000 psi.

   Hint

   Use the known tension and compression relationships in trusses.

6. 6.

   Discuss the design considerations when moving from a K truss to a more complex structure like a Warren truss. What are the trade-offs?

   Hint

   Look at how different designs affect both costs and strength.