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Posted by 3D Peruna on May 10, 2006, 9:10 am
Skroob wrote:
> John wrote:
>> Has anybody yet constructed an tall office building that incorporates
>> active earthquake resistance features? (i.e. a building that uses an
>> actively responsive mass to maintain equilibrium). I realise that
>> 'passive' versions exist, but I'm interested to know if the technology
>> has gone any further. I've seen a number of papers on the subject and
>> assume this idea hasn't got beyond the drawing board...
>>
>>
>>
>
> actually, from what i remember, small buildings are in more danger than
> taller ones. The resonance of the earth moving is more easily absorbed
> by a very tall one than a medium or small one.
>
It all depends on the specific earthquake and the P and S waves that hit
the building. If they happen to hit on a tall building's (or any
building's) harmonic, it's a problem.
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