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Museum of New Zealand 20 years of advances in fire modelling What - PowerPoint PPT Presentation

Te Papa Tongarewa Museum of New Zealand 20 years of advances in fire modelling What are the benefits? A case study Presented by Kevin Weller About Te Papa Built 1996 5 hectares 6 floors Large atriums Single compartment


  1. Te Papa Tongarewa Museum of New Zealand 20 years of advances in fire modelling What are the benefits? A case study Presented by Kevin Weller

  2. About Te Papa • Built 1996 • 5 hectares • 6 floors • Large atriums • Single compartment

  3. Smoke Control System

  4. Building Code Then • ‘Acceptable Solution’ • Large atriums → Alternate solution → 10 minutes to evac. → Indefinite tenability

  5. Building Code Now • Compliance Document • ASET vs RSET – Set performance requirements

  6. Engineering tools • FIRE SIMULATOR – Zone model • EVACNET+ – Nodal model

  7. Engineering tools • FDS – Revit – PyroSim – Smokeview • Pathfinder – Revit

  8. Then vs Now a greater understanding or additional complexity? What are the benefits?

  9. Entrance Atrium Fire • 22m ceiling • Four levels • Protected by – Smoke extract – Deluge + Flame detection

  10. Entrance Atrium Fire • FIRE SIMULATOR • Single Room • 4MW fire • Design layer height + Safety Factor

  11. Spill Plume vs. Atrium Fire

  12. Entrance Atrium Fire Now • FDS • FDS • 1.5MW fire • 1.5MW fire. • Spill Plume Fire • Spill Plume Fire

  13. Entrance Atrium Fire • FDS • 1.5MW fire • Spill Plume Fire • Failed Tenability

  14. Entrance Atrium Fire

  15. Evacuation Modelling EVACNET+ • 1 model • 4200 people • All exits available • 10 minute limit • 520 s Evac

  16. Evacuation Modelling • Pathfinder • 3500 people • 460 s to safe place • 610s to outside

  17. Evacuation Modelling • 520s for 4500 people vs • 610s for 3500 people

  18. Evacuation Modelling • Blocked Exit • 1400 people • 1200 s Evac

  19. Acceptance Criteria • Maintained tenability • Evacuation under 10 minutes • ASET vs RSET

  20. Conclusion Then Now • Safety factors • More detailed • Limited • More complex assessment • Better • Little detail understanding Benefit: a safer building

  21. Questions?

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