1. External Forces
1.1. Force applied to a structure from the outside.
1.1.1. Rain
2. Frame Structure: CN Tower
3. Loads
3.1. Types of loads
3.1.1. Dead load
3.1.1.1. A type of load created by the weight of the structure
3.1.1.1.1. Dead Load: Game Shelf
3.1.2. Live load
3.1.2.1. The weight of something on or in a structure.
3.1.2.1.1. Live Load: Board Game
3.1.3. Dynamic load
3.1.3.1. A load that can change.
3.1.3.1.1. Dynamic Load: Weather
3.1.4. Total Load
3.1.4.1. Both the dead load and the live load
3.1.4.1.1. Total Load: Game Cabinet With Games Inside
4. Forces
4.1. Force that is applied to a structure from the inside.
4.2. Internal Forces
4.2.1. Shear
4.2.1.1. An internal force that pushes a structure in opposite directions.
4.2.1.2. Elastic Band getting pushed in opposite directions.
4.2.2. Compression
4.2.2.1. An internal force that squeezes or presses a structure together.
4.2.2.1.1. Hockey Players Coliding
4.2.3. Tension
4.2.3.1. An internal force that stretches a structure apart to expand or lengthen.
4.2.3.1.1. Balance Beam with Weights
4.2.4. Torsion
4.2.4.1. An internal force that twists a structure.
4.2.4.1.1. Ice Skater Spin
5. Types of Structures
5.1. Frame
5.1.1. A structure that has different parts.
5.2. Solid
5.2.1. A structure that is solid all the way through.
5.2.1.1. Solid Structure: Drawer
5.3. Combination
5.3.1. A structure that has Frame, Solid and Shell materials.
5.3.1.1. Combination Structure: Dome
5.4. Shell
5.4.1. A structure that is hollow and rigid, but strong.
5.4.1.1. Shell Structure: Helmet
6. Form&Function
6.1. Form
6.1.1. How the structure looks
6.2. Function
6.2.1. What the structure is made to do