Our UOI at the moment is under the 'How the World Works' transdisciplinary theme. The central idea is
Making decisions, based on sound scientific research and principles, ensures progress.
We've been looking at scientific research and how it is being used to ensure that the rebuild of Christchurch is innovative, making Christchurch a safe and exciting place to live.
Yesterday we had a guest speaker come in and talk to us about innovative buildings in Christchurch post-earthquake. Mr Christie is a Structural Engineer for a firm called SKM. He gave us a lesson, Seismic 101 where he taught us some vocabulary used when building quake-proof buildings. Some of the words he taught us were
- Compression (pushing forces)
- Tension (pulling forces)
- Elastic (Materials that bounce back into place)
- Plastic (Doesn't Bounce back)
- Seismic (earthquake activity)
- D.L.D (Damage Limiting Design)
He taught us a lot about how the buildings worked during the earthquake and the latest thinking of how the buildings work.
Many of the buildings going up in Christchurch are using something called post-tensioning with timber to make sure they are super safe. There is one in Victoria St about 100 metres from our school.
Here's Mr Christie explaining how post-tension works using a model he brought to show us.