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Frame and Shell Structures

Similarities.......

............ and Differences

Some of the main similarities between shell structures and frame structures are:

- They can both come in varying shapes, sizes and materials.

- They can both be quite tall.

- Both structures can be used in one structure for example a chair uses frame structures for it's arms, legs and back while a shell structure is used for the place where you sit.

Properties of frame structures

Some of the main differences between shell structures and frame structures are:

- Shell structures are often lighter and more streamlined than frame structures which can be bulky and heavy.

- Frame structures have joins which keep them together whereas shell structures have no joins.

- Shell structures usually only support their own weight while frame structures support other loads as well as themselves.

- Frame structures are mainly made up of beams.

- They are able to support themselves.

- Frame structures have joins which keep them together. These joins must be strong and able to withstand the weight of heavy loads otherwise the frame will collapse.

- Frame structures usually support other loads as well as their own weight.

- They can be quite bulky and heavy.

Properties of shell structures

- Curved surfaces meaning there is no need for joints.

- Often quite light and streamlined.

- Shell structures vary in size; from as small as a nutshell to as big as a boat.

- The actual shell is typically quite thin, there being no need for it to be thicker than necessary to do its job, so as not to waste resources when building a shell structure.

- Shell structures usually do not support loads but shield or protect other things eg. roofs shelter you from rain and helmets protect you heads.

What are they?

Thank you for watching and hope you enjoyed it!

A frame structure is a very sturdy structure, often quite tall, which is typically made up of beams, columns and slabs. Natural frame structures include coral, trees, spider webs and skeletons. Man-made frame structures include scaffolding, chairs, tables, bridges and bicycles.

Shell structures are typically curved, light-weight structures. Examples of natural shell structures include coconut shells, tortoise shells, sea shells and nut shells. Examples of man-made shell structures include tunnels, roofs, helmets, drink cans and boats.

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