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Fire Safety Engineering:
The Performance-Based Approach
By Brian Fagan
Exova Warringtonfire 18 February 2013
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AIA Middle East A309
Fire Safety Engineering
The Performance Based
Approach
1311. Qatar
Brian Fagan Feb 18, 2013
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Credit(s) earned on completion of
this course will be reported to AIA
CES for AIA members.
Certificates of Completion for both
AIA members and non-AIA
members are available upon
request.
This course is registered with AIA
CES for continuing professional
education. As such, it does not
include content that may be
deemed or construed to be an
approval or endorsement by the
AIA of any material of construction
or any method or manner of
handling, using, distributing, or
dealing in any material or product. _______________________________________
Questions related to specific materials, methods,
and services will be addressed at the conclusion
of this presentation.
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This presentation is protected by US and International Copyright laws.
Reproduction, distribution, display and use of the presentation without written
permission of the speaker is prohibited.
© Exova 2013
Copyright Materials
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Performance based fire safety engineering design relies on the use of fire engineering principles,
calculations and/or appropriate software modelling tools to satisfy the intentions of the Fire Code.
The performance-based approach is unique in that its provisions spell out the intent of the code
qualitatively but the means of achieving the desired intent of the code is open to the building
practitioner.
The course will also review smoke management system basics as required by the local
Standards and the NFPA Codes. It will illustrate with case studies how these requirements are
typically not being achieved in the GCC, and will provide information on how to verify existing
building system performance.
The course will also discuss how design specifications must relate to the fire strategy, applied
codes such as British or American as well as standards and fire tests. It will point out examples of
getting it right and what happens when it goes wrong.
Course
Description
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Learning
Objectives
At the end of this course, participants will have been shown:
1) The principles of code compliance
2) The principles of performance-
based design
3) A case study
4) Examples
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Code Goals & Objectives
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Code Compliance Options
Building Code
(NFPA 5000 or IBC)
Prescriptive
Design
Goals & Objectives
Functional & Performance
Requirements
Performance-based
Design
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Performance-Based Design
Management Procedures
Occupant Behaviour
Building & Systems
A holistic
approach to
Fire and Life
Safety…..
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Local Practice in Qatar
QCDD Basic Framework for
Submission of Performance-based
Solutions
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Fire Engineering Process
Prepare FEB
Carry out analysis
Collate and evaluate results
Draw conclusions
Prepare report
1 5
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Case Study – New Theme Park
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Extended Travel Distance
Required: No
Proposed: Yes
Required: Yes
Proposed: Partial Protection
Required: < 76 m, Proposed: < 150 m
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Evacuation Time
Ignition
Fire
Detected
Occupants
Start to
Evacuate
Evacuation
Complete
RSET
Alarm
Time (Ta)
Response
Time (Tr) Travel
Time (Tt)
RSET = Ta + Tr +Tt
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Evacuation Modelling
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Time to Reach Untenability
Ignition
Conditions
Unsafe for
Occupants
ASET
• Geometry ?
• Fuel load ?
• Ventilation condition ?
• Sprinklers ?
• Smoke control ?
• Compartmentation ?
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Tenability Criteria
Temperature
Visibility
Toxicity
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Fire & Smoke Modelling
Visibility
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“Timeline Analysis”
Ignition
RSET ASET
Required Safe Egress Time
Available Safe Egress Time
Safety
Factor
ASET > RSET x Safety Factor
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Case Study – Summary
0
5
10
15
20
RSET ASET RSET ASETPrescriptive Design Performance-based Design
Min
ute
s
Alarm
Response
Travel
Alarm
Response
Travel
Ten
ab
ilit
y L
imit
Ten
ab
ilit
y L
imit
Safety
Factor
Safety
Factor
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Case Study – Benefits
•Superior fire & life safety
•Practical design
•Cost effective
•Easy to build
•Sustainable
• Innovative design
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Recap
1) Code compliance
2) Performance-based design
3) Case study
4) Examples
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This concludes The American Institute of Architects
Continuing Education Systems Course
Exova Warringtonfire Exova Warringtonfire
PO Box 34924
Dubai, UAE
+971 50 738 3122
www.exova.com
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