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Earthquake Engineering

A quick presentation on how modern buildings are 'earthquake-proofed' for a Geography project.

Andreas Richardson

on 30 November 2013

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Transcript of Earthquake Engineering

Earthquake Engineering
bad things happened...
The Problems
people came up with ingenious ideas.....
How can we expand?
there isn't enough space...
The sea!
slight problem...
another problem...
Put more people in less space!
more problems...
9 dead
18 dead
Tower A
Tower B
buildings collapsed...
people died :(
some buildings even sank!
drystone walls
tuned-mass dampers
they are more effective than mortar walls in many cases
they were extensively used by the Incas - many of them are still standing
the Incas built using this method In Peru, a very earthquake-prone country
Liquefaction Flash animation:

Solution Pictures:
Wikipedia - by the following users
drystone walls - Fabricio Guzmán
lead-rubber bearings - Shustov
tuned mass damper (Taipei 101) - Someformofhuman
spring damper - Shustov
transamerica pyramid - Leonard G.

Prezi © Andreas Richardson 2012 except where otherwise
dampening device fitted onto supports / foundations
made from a lead core and rubber outer rings
lead-rubber bearings
these are enormous counterweights mounted inside buildings
they counteract the swaying of the skyscraper
we can utilise simple shapes to make buildings far stronger
we get great stability and strength from these shapes
this helps to reduce resonance
work in very much the same way as LRBs
move laterally to absorb shock and movement
relatively easy to use
placed in strategic points around foundations
Full transcript