Stability of Structures
the ability of a structure to remain in or return to a stable, balanced position when forces act upon it.
what is stability
a horizontal structure designed to support a load.
What is a beam
a network of beams arranged in triangles
what is a truss
the failure of a structure as a result of the structure, or part of the structure, losing the ability to support a load.
what is structural failure
the point around which an objects mass is equally balanced in all directions.
what is centre of gravity
multiple folds in a material that provide additional strength.
what is corrugation
a curved structure used to span a space while supporting a load.
arch
Errors such as failure to account for load, specifying incorrect materials, or not considering important factors and stresses
what is bad design
Which is more likely to tip over? A sports car or a truck? Why?
What is a sports car. Thanks to the lower centre of gravity and wide support base.
a beam that is in the shape of the letter "I" when seen from the end.
what is an I-beam?
a shell structure that looks like the top half of a sphere
dome
errors that are a result from the use of poor quality materials, poor installation from either sloppiness or lack of expertise, or a combination of these.
what is faulty construction
Which would you never stand up in? Ship, boat or canoe?
What is a canoe.
steel reinforced bars placed in concrete to help it resist the forces of tension.
what is rebar?
And example of a dome is
What is ______
failure as a result of unexpected events that create extraordinary loads on structures.
what is extraordinary loads
Which is more stable a turtle or a giraffe? Why?
What is a turtle. lower centre of gravity.
a beam only supported at one end
what is a cantilever?
An igloo is an example of
what is a dome
the failure of a structure's base or foundation is less common that bad design and faulty construction.
foundation failure