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Classifying and Function of Structures
The first thing that one will notice about a structure is its shape
There are three basic structural forms that are commonly used in our world both naturally and man-made
◦ Solid◦ Shell◦ Frame
Is formed from one solid piece or a combination of solid pieces of a strong material
This structure has little or no open space inside of it and relies on its own mass to resist forces
Are usually stronger than the frame or shell structures but also extremely heavy
Solid Structure
Made up of a rigid arrangements of parts all fastened together
No individual component of the frame is as strong as the frame as a whole
Can be arranged 2-dimensional or 3-Dimensional
Are lighter than a solid structure because there is less material used
Frame Structure
Has a solid outer surface, which may be rounded or flat with a hollow interior
Rounded surfaces are usually stronger than flat shaped, because a curved area distributed the load more evenly
This structure is lighter than a solid structure
Are usually stronger than a frame structure and more commonly used for protection
Shell Structure
You are a landscape designer who has been hired to create benches for the HEB school ground that will last a long time and not be easily removed.
Using structural forms discussed previously you choose a solid structure design as the best choice.
So 10 block like benches are built. A few months later a member of the school council calls you about some concerns regarding your benches.
WHY?
Many structures are designed to serve more than one FUNCTION (use or purpose)
Using the bench problem as an example we can notice that the main function of the benches were over looked.
◦ Too much attention was given to designing the bench that was durable and secure ,and not enough to the comfort and appealing look of them
Function
When a designer has all of the expected functions of a structure they are more able to produce a quality product
Structures today are commonly created for two things;◦ To shelter people◦ To shelter moving cargo
◦ Think of an airplane design – which does it provide??
Technological problems can often be solved in a variety of ways using many different structural designs, materials, and processes
To get ideas for structures that meet particular functions many designers look to the natural world◦ Ever notice how barbed wire resembles a thorn
bush?
Function + Effective Design
VS
Some structures look very different from one another but they all serve the same purpose
Over time people have found what work and what doesn’t work through trial and error methods.
◦ How will a house with a flat roof work in a high mountain area?
Common Function Different Design
Examples of the Same Function
Many human-made products resemble the natural world◦ Eg. Flippers and duck feet◦ Bat wings and airplane wings◦ Barbed wire and a thorn bush
Other Charactreristics
One way structures can be classified is based on their aesthetic quality
Aesthetics refers to the pleasing appearance or effect that an object has because of its design
Not all structures need to be aesthetically pleasing
Humans throughout time and cultures have always attempted to decorate their homes on the outside and inside so that they are attractive◦ First Nation Teepees
Aesthetics
80’s90’s
Early 2000’s Mid -2000’s NOW