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On Shaky Ground – AIS Conference 2014
Association of Integrated Schools2014 Conference
‘On Shaky Ground’
Impacts on Property from the Christchurch Earthquakes
Workshop Presentation by Stuart AndersonDirector, Signal Management Group
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On Shaky Ground – AIS Conference 2014
Presentation Outline
1. What caused the damage – five earthquake impacts
2. How buildings performed
3. How building regulations have already changed
4. New buildings – ‘resilient’ buildings
5. Existing buildings – ‘earthquake prone’ buildings
6. Strengthening Options
7. The hidden costs of compliance – fire and accessibility
8. Other opportunities – Modern Learning Environments
9. Question time
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On Shaky Ground – AIS Conference 2014
Durham Street Methodist Church Christchurch
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On Shaky Ground – AIS Conference 2014
Durham Street Methodist Church Christchurch
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On Shaky Ground – AIS Conference 2014
The Five Things That Cause Quake Damage
• Ground shaking
• Uplift
• Liquefaction
• Lateral spread
• Building collisions
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On Shaky Ground – AIS Conference 2014
Effects of liquefaction
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On Shaky Ground – AIS Conference 2014
Building Code – Clause B1 Structure
“The objective of this provision is to:
a) Safeguard people from injury..
b) Safeguard people from loss of
amenity…
c) Protect other property…”
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On Shaky Ground – AIS Conference 2014
Importance Levels – Summary
1. Low risk: non-habitable
2. Most residential, commercial and industrial buildings,
(including until recently, most school buildings)
3. Large concentrations of people, special purpose
infrastructure (and all new state school buildings)
4. Hospitals and emergency services, essential
infrastructure
5. High risk special purpose
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On Shaky Ground – AIS Conference 2014
Base Isolators – Te Papa
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On Shaky Ground – AIS Conference 2014
Structural Damping
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On Shaky Ground – AIS Conference 2014
PRESSS
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On Shaky Ground – AIS Conference 2014
PRESSS
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On Shaky Ground – AIS Conference 2014
Wanaka Police Station
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On Shaky Ground – AIS Conference 2014
Strengthening – Exterior Options
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On Shaky Ground – AIS Conference 2014
Case Study – Two Storey Hostel Building
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On Shaky Ground – AIS Conference 2014
Case Study – Two Storey Hostel Building
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On Shaky Ground – AIS Conference 2014
Case Study – Two Storey Hostel Building
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On Shaky Ground – AIS Conference 2014
Case Study – Two Storey Historic Homestead
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On Shaky Ground – AIS Conference 2014
Building Controls
Building Act
Building Regulations
Building Code
Acceptable Solutions
Verification Methods
Alternative Solutions
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On Shaky Ground – AIS Conference 2014
State School Spending Priorities
1. Health and Safety
2. Essential Infrastructure
3. Modern Learning Environments
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On Shaky Ground – AIS Conference 2014
MLE Core Standards
• Flexibility• ICT• Furniture• Specialist Areas • Student Support Spaces• Teacher Support Spaces• Internal Environments• Sustainability• Accessibility
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On Shaky Ground – AIS Conference 2014
South Otago High School – new technology block
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On Shaky Ground – AIS Conference 2014
Silverstream School – existing block upgrade
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On Shaky Ground – AIS Conference 2014
MLE Core Standards
• Flexibility• ICT• Furniture• Specialist Areas • Student Support Spaces• Teacher Support Spaces• Internal Environments• Sustainability• Accessibility
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On Shaky Ground – AIS Conference 2014
Conclusion – key questions
• What level of NBS to strengthen to?
• What unintended consequences might
there be?
• What opportunities are there?