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| Compression
is the name for the pushing forces on parts of a structure.
Take a piece of Blu-tak or plasticine. Roll it into a sausage
and stand it up on a table. If you press down on top of it,
it is in compression.
Notice the shape before it falls over. It will become fatter
in the middle as you push |
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The
parts (members)
of a structure which are compressed have to be able to resist
this kind of change. Columns in an ancient or modern building
resist compression. |
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| The
base of a bridge resists compression
and so do the legs of a chair. Make a list of other
things which are man-made and natural, that can withstand compression |
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Columns in compression under Connaught Bridge in Docklands
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