Loads
What is a load and give an example?
A force is acting on a structure.
What is a shell? What is a shell structure?
A hollow structure or that that is also curved. Shell structure that surrounds or encloses something such as a door or window.
What is force?
A push or pull that moves and objects
What is Point of application? Give examples
the exact location at which a force is applied to a body
What is the most common cause of structural failures?
Bad design.
What is corrugation and where is it found?
Series of folds/triangular ridges that provide more stability/strengthen the structure. Found in cardboard.
What is a solid and solid structure?
Solid is something that does not have any space in it. Solid structures are hard all the way through.
What is gravity?
The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
What is a Plane of application? Give Examples
Point around the location at which a force is applied to a body
What are trusses and why are they useful?
Trusses are a network of beams that form triangles, they are strong because triangles allow the structure to support more weight.
What is a live load?
The weight of the objects a structure supports.
What is a frame? Frame structure?
A frame surrounds or encloses something. Frame structure is made from beams connected to each other to support a load
What is a strut and what force does it resist?
A strut is similar to a tie, but it is placed below a beam where it provides resistance to the forces of compression.
What is tension? Give Example
When 2 forces pull on an object from the opposite direction
Domes are a structure that looks like the top half of a sphere or an egg. They both transfer compression downward. They allow for more volume than an arch.
What is a dynamic load?
Things that are in motion that acting actively on a structure.
What is a natural structure?
A structure that was not made by humans, part of the natural world
What is weight?
The force of an object due to gravity.
What is compression? Give examples
Compression is when something pushes or presses an object to make it smaller or thicker
What is Shear?
Shear - two forces acting parallel to each other by being pulled or flipped apart
Would your mass or weight change if you went to the moon? Explain
Our weight on the moon is less than it would be on Earth due to a difference of the strength of gravity on the moon.
What is a combination structure?
A structure that combines a Shell , Solid and Frame structure.
What is external force? What is internal force?
What is Tortion?
Turing to or twisting force
Describe how tension and torsion are different from each other?
Tension is a force that pulls and stretches materials. Two other important forces acting upon structures are shear and torsion and shear is a force that causes parts of a material to slide past one another in opposite directions, and torsion is a twisting force