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earthquake damage
How have building techniques prevented earthquake damage?
Kinda looking for case studies such as in California?
Very interested to know, thanks a lot,
It is difficult to prevent earthquake damages.But it is possible to reduce the earthquake damages if the past records at that place were properly studied. The fallowing parameters are to be considered while designing the buildings.
1. Distance from active tectonic plate boundary,
2. Geological condition of those area,
3. amplification factor and liquefaction factors for that type of soil,
4.The natural frequency of the building compared to the frequency of earthquakes recorded at that area. ( They should not match )
5. Enforcing cross beams,
6. Allowing the buildings to swing without damage for certain distance,
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San Francisco Earthquake Damage 1906
What Structure Sustains the Most Damage During an Earthquake?
Between a Timber, Structural Steel, Reinforced Concrete, and Unreinforced Masonry, which structure sustains the most damage during an earthquake?
The masonry structure, it is the least able to bend. Any flexing will result in cracks and significantly weaken it.
The reinforced concrete is a bit better, the concrete will crack almost as bad as the masonry but the steel reinforcements will help hold it all together.
Which is the best between steel and timber probably starts to depend a lot on what you are building and how you build it. Steel is stronger and can bend a lot without failing but wood is a lot more flexible and so the forces within the walls are a lot lower.
2 Comments
(formerly anonevent):If you are worried about an earthquake, I would recommend the only true system that will be functional in a disaster.
No reports of injuries/damage after a 5.1 magnitude earthquake rattled Greece. The undersea quake was centred near the island of Milos.