structures
what are the three types of structures?
solid, frame, shell, (combination)
what's the definition of a solid structure?
a strong structure that relies on the strength of it's construction materials to support loads
what are the two main features of a structure?
what are the the two forces?
internal and external
what are the internal forces?
torsion
shear
tension
compression
what's an example of a frame structure
spiderweb, the effiel tower, scaffolding
what's the definition of frame structures?
A structure that uses a network or skeleton of materials to support each other
what's the definition of function for structures?
it's a structures main task or purpose, and what it was built for.
every structure has at least one function
what is an internal force (definition)
force or pressure acting from inside a system
what is an example of torsion?
wringing out a towel
what's an example of a solid structure?
rocks, bricks, concrete dam
what's the definition of a shell structure?
a hollow, curved, structure that serves as a protector on the outside and container for whatever's inside
what's the definition form for structures?
form is the physical appearance of a structure. while function is the main reason of the structure, people also care about form or appearance
what is an external force
pressure or force acting outside a system
what is an example of tension?
stretching a rubber band, those exercise pulling sheets
what's an example of a shell structure?
coconut, egg, oysters
what's the definition of a combination structure?
a structure made up of a combination of the three other structures (hence the name)
what is an example of a structure's function?
a roof protecting the house from weather, a spiderweb to be a spider's home and being able to capture food
what is an example of external force
gravity, snow on a roof, push and pull
what's an example of compression?
crushing/stepping on a can
what's an example of combination structures?
skeleton, statue of liberty, snowglobe
note pass
no points
note pass
no points
what is an example of internal force
compression
shear
tension
torsion
shear
scissors, tearing a piece of paper in half