31. Case Study II: GEORGE WASHINGTON BRIDGE

Try these first

1. 1.

   What is the shape of a cable under a uniform load?

   Hint

   Think about how a sagging rope looks when it's attached at both ends.

2. 2.

   What does the horizontal force (H) represent in cable mechanics?

   Hint

   Remember, H doesn't change in our calculations.

3. 3.

   What is the shape of a cable under uniform loading?

   • Circular
   • Parabolic
   • Linear

   Hint

   Think about how a sagging rope dips.

4. 4.

   True or False: The horizontal tension (H) in a cable can vary depending on the load.

   • True
   • False

   Hint

   Remember that this is true as long as we are not accounting for extra external forces.

5. 5.

   A cable is 100 meters long and designed to carry a load of 1000 N uniformly. Calculate the sag if the horizontal force in the cable is 500 N.

   Hint

   Plug in the values carefully into the formula.

6. 6.

   Describe how real-world factors like wind or temperature can affect the calculations of tension and sag in cable structures.

   Hint

   Think about how these external conditions would influence the stability of the cable.