921 Earthquake Museum, Taichung Township

Second day in Taichung I decided to visit Museum of earthquake. This unique museum is built within the ruins of Guangfu﹝光復﹞ Junior High School in the Wufong﹝霧峰﹞ Township of Taichung﹝台中﹞. The school’s demolished buildings not only help visitors observe and contemplate the power of an earthquake, but the broken parts of the building have also been skillfully used as effective teaching aids. Merely The China Post.
All the photoes are available here.
On Tuesdy morning you can be almost sure you will have your quiet, only several school buses were there.

There are five sections of museum, on the imagine above you can see the entrance hall and athletic field which was rised about 2,5 meters during the earthquake and can be better see from the entrance hall.

The most imposant and scary views come after that, when you pass through the area around "main building-original entrance to the school". You can see abounded classrooms with still wrote up blackboards.

Other interesting thins are simulators of earthquake. In the museum, there is a 3D cinema sall, where you can see how it looks like during the earthquake - in 3D reality. Also there are several examples of building construction. One of the most important and interesting thing for me were exactly these models. It reminds me time spent in shool desk - it is about "self frequency of construction" (I am not sure if this term is totally correct). Look first at models of buildings:

1. ordinary low rise building
2. building with diagonal brace damper
3. fondation isolator (this construction has its own "bogie", so during the earthquake it drives on "wheels")
4. ordinary high rise building
5. building with tuned mass damper
   

Doesn't it remind you the famous bowl in T101? :)
And on the very end I will present two videos about what is happening if the frequency is low and high:

Low frequency

High frequency