Build a Deck Project 2.2

What is a Dead Load?

• Hamburgers.

• The weight of the structure itself.

• The bridge to nowhere.

• The weight on top of an object.

What is a Live Load?

• The sum of all live and dead loads. A structure must be designed so that it holds

  up the total load, plus a large margin of safety.

• A hamburger.

• All other forces on the object, including the weight of people, objects, and snow

  that the structure must support, as well as any additional forces such as wind,

  water, or earthquakes.

• The weight of the structure itself.

What is a Total Load?

• The weight of the structure itself.

• A hot dog.

• The sum of all live and dead loads. A structure must be designed so that it holds

  up the total load, plus a large margin of safety.

• All other forces on the object, including the weight of people, objects, and snow

  that the structure must support, as well as any additional forces such as wind,

  water, or earthquakes.

Your deck on the plans is shown to be 3' tall. At 1:12 scale how tall is your deck?

• 8"

• 11"

• 3"

• Hamburger

Your deck on the plans is shown to be 11' long. At 1:12 scale how long is your deck?

• 11"

• 11'

• 3"

• 8"

Your deck on the plans is shown to be 8' wide. At 1:12 scale how wide is your deck?

• 11"

• 11'

• 8"

• 3"

What is a Safety Factor in Project 2.2?

• A hard hat.

• The number of times greater than the maximum total load that a structure is designed

  to support. For example, if a structure is expected to hold a maximum total load of 1,000 pounds, a

  safety factor of 2 means it would be designed to hold 2,000 pounds .

• A steel toed boot.

• The amount of weight that you can put on top of a cats hard hat in a construction zone.