7.3. Bridges and Walkways

Try these first

1. 1.

   What is one major benefit of using aluminum in bridge construction?

   Hint

   Think about how weight affects construction logistics.

2. 2.

   True or False: Aluminum is more prone to corrode than steel.

   Hint

   Recall how aluminum interacts with moisture and air.

3. 3.

   What is the primary advantage of aluminum's lightweight property in bridge construction?

   • Lower maintenance
   • Easier handling
   • Higher strength

   Hint

   Remember how weight impacts logistics.

4. 4.

   True or False: Aluminum structures require frequent repainting to protect against corrosion.

   • True
   • False

   Hint

   Think about materials' maintenance requirements.

5. 5.

   Calculate the weight difference between a steel bridge and an aluminum bridge with similar dimensions, considering the densities provided in this section.

   Hint

   Consider the density formula: Weight = Volume x Density.

6. 6.

   Evaluate an environmental scenario where aluminum would be preferable to steel for a bridge. Discuss impact factors such as climate and maintenance.

   Hint

   Think about the factors affecting material longevity in specific environments.