7. Simple Structures

Try these first

1. 1.

   What do dead loads consist of?

   Hint

   Think about what parts of a building don't change.

2. 2.

   Give an example of a live load.

   Hint

   Consider items that can move or change in number.

3. 3.

   Which of the following is a dead load?

   • Snow accumulation
   • Weight of the roof
   • People in the building

   Hint

   Think about which loads remain constant.

4. 4.

   True or False: Environmental loads include forces from natural occurrences.

   • True
   • False

   Hint

   Consider what factors come into play from nature.

5. 5.

   A roof of an office building is expected to carry a snow load of 30 lbs per square foot across a 1000 square foot area. Calculate the total snow load the roof must support.

   Hint

   Consider how pressure is distributed over area.

6. 6.

   An engineer must design a bridge that accounts for both heavy traffic loads (live) and severe wind loads (environmental). Describe how each load affects the design.

   Hint

   Consider the structure's flexibility and strength.