Performance-based design for building fire safety ... - Nexus-idrim.net

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Components of Step 6 : Establish fire scenariosfor analysis★A more complete description of a design firemay include one orall of the following phases:– a)incipient phase:❯ characterized by a variety of combustion processes which may besmouldering, flaming or radiant;– b)growth phase:❯ covering the fire propagation period up to flashover (if appropriate) orfull fuel involvement;– c) fully developed phase:❯ characterized by substantially steady burning rates, may occur inventilation or fuel bed controlled fires;– d) decay phase:❯ covering the period of declining fire severity;– e)extinction:❯ when there is no more energy being released.IDRiM'09 24
Quantitative Analysis★ To simplify the evaluation of the fire safetydesign, the fire safety engineering processshould be further broken down into six subsystems(SS).★ The sub-systems can be used individually toaddress specific issues or together to address allof the main aspects of fire safety.IDRiM'09 25
Page 1 and 2: The 9 th IIASA-DPRI FORUM on Integr
Page 3 and 4: Introductionti★★★In Hong Kong
Page 5 and 6: The prescriptive codes, basically o
Page 7 and 8: Introductionti★In the code of pra
Page 9 and 10: Introductionti★ Under the prescri
Page 11 and 12: PNAP 204 Guide to Fire EngineeringA
Page 13 and 14: SFPE Engineering Guide toPerformanc
Page 15 and 16: Process Flowchart (SFPE)Defining Pr
Page 17 and 18: BS 7974Application of fire safety e
Page 19 and 20: Procedure for undertaking the QDR
Page 21 and 22: Components of Step 5: Identificatio
Page 23: Components of Step 6 : Establish fi
Page 27 and 28: SS1: Initiation and development of
Page 29 and 30: SS1: Design fires★★Following id
Page 31 and 32: Pre-flashover design fires★ t 2 f
Page 33 and 34: SS1: outputSub-system 1Heat release
Page 35 and 36: SS2: analysis ofsmoke andtoxic gase
Page 37 and 38: SS3: Structural responseseand fire
Page 39 and 40: SS3: Structural responseand fire sp
Page 41 and 42: SS4: Detection of fire and activati
Page 43 and 44: SS5: Fire service intervention (see
Page 45 and 46: Time line approachIDRiM'09 45
Page 47 and 48: TimeAvailable safe egress time (ASE
Page 49 and 50: ★★★★Based on above formula,
Page 51 and 52: ★ Physical conditions, occupant d
Page 53 and 54: Example4.6 m16.21 m73.51m1.78mIDRiM
Page 55 and 56: Evacuation profileNo. of people pas
Page 57 and 58: Untenable conditions★★★The un
Page 59 and 60: Simulation layoutMonitoring point(t
Page 61 and 62: Smoke spread at 80 secondIDRiM'09 6
Page 63 and 64: Temperature distribution near the f
Page 65 and 66: Temperature profile at different ti
Page 67 and 68: CO concentration ti profileCarbon M
Page 69 and 70: Other examples69
Page 71 and 72: moviestaircaseFire size = 2MW192 x
Page 73 and 74: Conclusion★★Fire engineering ap

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