Structures Flashcards
How many types of structures are there?
There are solid structures, shell structures, and frame struct
What are two ways that structures can be created?
They are either natural made in the natural world made by animals or manufactured world made by hum
What is another name for solid structures?
Mass structures
What are solid structures?
Solid structures are made up of one piece of strong material. A solid structure relies on its own master resistant forces that may be placed on it. For example, a wrap, rock or a break have both been used throughout history grade buildings because they can always stand the forces of nature better.
What is a frame structure?
Frame structures are composed of a framework of parts that are fasten together to provide strength. These structural components or parts are joined together to created two dimensional or three dimensional form that can be other left as a frame or covered by coding
What are some examples of frame structures?
Some examples would be spiderwebs, tennis rackets, and umbrella, bat wings.
What is a shell structure?
Shell structures are hollow structures that require very little material for the construction, making them quite light. The strength of the structures is found in the outside shell which holds the whole optic together making them a good container.
What are some examples of shell structures?
A mug which is manufactured in a comb, which is natural or good examples of shell structures. Some structures are combination of two or more types of structure. For example, a house is built using solid structures to create a frame structure. These combines these are combined structures are used frequently in, specially, if product needs to be shipped as it is usually usually in a box or wrapped in plastic.
What are two main factors for structural stability?
The centre of gravity and size of the base
Explain the centre of gravity
The centre of gravity is the imaginary point in a structure where its mass is concentrated. Where the centre of gravity is located affect its stability. This means that the lower the to the ground and object centre of gravity is the more stable. It will be whereas the high is from the ground the more likely it will fall over if you push it.
 what is force?
A force is any stress of push or pull placed on an object, causing it to either change shape or movement. The effect of a force on structure is dependent on the magnitude of the force the direction of the force in the location of the application of the force.
What is magnitude?
The magnitude is the amount of force that is being put on an object.
What is it called where a force is coming or going?
It is called the direction. The direction of a force on a structure can cause different types of stress for example, if the wind is blowing in front of you, it can make it more difficult for you to walk forward. However, the wind is behind you it’ll help you walk faster, push pushing you forward.
What is the point of application?
The location of application includes both the point of application and the plan of application. These help indicate where the forces meet the structure. The point of application is a specific location where the force exactly meet the structure. The plan of application is the side of the structure that is affected by the force. The previous example of the wind, the location of the application would be where the wind is affecting the structure. Is it affecting the entire structure or just part of it where a strong gust of wind might be enough to knock you over the wind generated by a fan however would only cool down the area that is pointing towards
What is an external force?
An external force will act upon the object from the outside of the object. Naturally occurring examples of wind and gravity. Gravity is the natural force of attraction between two objects. It is always present and external force on all structures and consistently pulling structures toward the centre of the earth.
What is an internal force?
An internal force is when one part of a structure act on the other parts of the same structure. For example, in an earthquake, the vibrations caused within buildings and other structures are internal forces acting on those structures. The structures like bridges need to be designed in a way that adapts to the forces in order to avoid failure and structural collapse
