1. Describing Structures
Topic 2
Describing Structures

2. Structure and Function
Structures have a function.
Think of a bridge… it’s structure is designed to support STUFF. But it may also be designed to look pretty or to make a piece of road safer.

3. The most common functions:
Transporting
Containing
Sheltering
Supporting
Lifting
Fastening
Separating
Communicating
Breaking
Holding
Etc…

7. But Function is not enough!
Aesthetics…..
Safety.
Cost.
These three factors often affect the design of a structure.

8. Can you think of a structure that is designed differently so that it is safer?
Less expensive?
Prettier?

11. Materials! Structures need to be made out of something.
Some types of materials are composite materials, layered materials, and Woven materials.

15. Choosing materials
What might affect our choice of materials then we are designing something?
Cost
Appearance
Environmental impact
Energy efficiency

16. Putting it all together
Now that we have chosen our materials we need to put it all together!
How can we attach all of our materials together?

17. Note: Joints can be mobile or rigid!

18. Fasteners
Interlocking shapes
Ties
Adhesives
Melting

19. Fasteners

20. Interlocking shapes

21. ties

22. Adhesives

23. Melting