Domes
What is an arch?
It is a curved structure to hold a load.
What is a truss?
a network or framework of beams that form triangles.
What is a beam?
It is a flat structure that is supported at both ends.
What is the Centre of Gravity?
The middle point of a structure or where the mass is evenly distributed around that structure.
top half of a sphere.
What material are arches usually made of?
bricks or stones
What shape is important to a truss system?
The triangle
What are beams usually made out of?
wood or metal
What are things that help to improve stability?
Lower centre of gravity (being lower to the ground) and wider base
Where is the compression force directed in a dome?
It is directed downward in a variety of directions- spreading the downward in many directions.
What is the name of the centre stone in an arch?
a capstone, or keystone
How do forces act on a truss system?
forces are distributed between the points of the triangle and take advantage of the strength of triangles
Where are beams usually found?
On the inside of buildings and on bridges to help support loads and hold up walls (framing)
Which structural component has lasted for many centuries and withstood weathering?
The arch. Some of the arches built over 2000 years ago built by the Romans are still standing.
What makes a dome strong?
large base and sometimes triangulation
How does the force of compression work in an arch?
The load goes onto the keystone (one point of application) and then goes down the sides of the arch downward.
What is the benefit of using trusses?
They can be used for a variety of applications that other components, like beams can't be used for.
What are columns?
A solid structure that can stand by itself or be used to hold up beams.
What is one of the strongest components we learned about in class and why? (arch, beam, truss, dome, column)
The dome because the plane of application moves down the whole structure to the ground which means it can handle more load and external factors affecting it.
Name a famous structure that has arches.
Eiffel tower, colesseum,
Name a famous structure that has trusses.
the Eiffel Tower, the London Bridge, the Golden Gate Bridge
Name a famous structure that has columns.
Forbidden palace
Name a famous building that has been around for a long time and is still standing today.
Colosseum in Rome