1Arcelor Profil LuxembourgResearch Centre
Software OZone v2.2
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Calculation of gas temperatures in the event of fire and corresponding steel temperatures
Short description
EN1991-1-2 and EN1993-1-2Standards
EnglishLanguage
2.2.5Version
OZoneName
Calculation of Temperatures distribution
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Fire Engineering Software �OZone V2.2�Fire Engineering Software �OZone V2.2�
WWW. ARCELOR.COM/sections
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Scope of the software
! Calculation of Gas temperature in Fire Compartment (Zone Model)• Localised fires
• Compartment fires
• Iso Fire
! Heating of Steel sections• Unprotected & Insulated sections
• Based on localised, Iso fire or zone temperature
! Member analysis • Compression and Tension
• Bending with or without axial compression
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Definition of Fire compartmentDefinition of Fire compartment
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Characteristics of the Fire CompartmentCharacteristics of the Fire Compartment
Fire resistant enclosuresdefining the fire compartmentaccording to the national regulations
Material properties of enclosures: c, ρ, λ
Definition of Openings
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OZone - Input data: Definition of the GeometryOZone - Input data: Definition of the Geometry
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Definition of Fire actionDefinition of Fire action
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OZone - Input data: Definition of FireOZone - Input data: Definition of Fire
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INPUT: Rate of Heat Release CurveINPUT: Rate of Heat Release Curve
RHR [MW]
Time [min]0
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Definition of Fire actionDefinition of Fire action
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OZone - Input data: Criteria for switching from 2 zones to 1 zoneOZone - Input data: Criteria for switching from 2 zones to 1 zone
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Behaviour of advanced fire ModelsBehaviour of advanced fire Models
LOCALISED FIRE
LOCALISED FIRE FULLY ENGULFEDCOMPARTMENT
The Fire stays localised The Fire switch to a fully engulfed fire
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Criteria for switching from 2 zones to 1 zone and FlashoverCriteria for switching from 2 zones to 1 zone and Flashover
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Run of Gas temperature ModuleRun of Gas temperature Module
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OZone � Results Gas TemperaturesOZone � Results Gas Temperatures
θHot
θCold
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Definition of heatingDefinition of heating
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Definition of heatingDefinition of heating
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Definition of heated membersDefinition of heated members
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Definition of unprotected membersDefinition of unprotected members
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Definition of protected membersDefinition of protected members
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Run of Steel temperature ModuleRun of Steel temperature Module
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OZone � Results Steel TemperaturesOZone � Results Steel Temperatures
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Definition of membersDefinition of members
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Definition of membersDefinition of members
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Run of Element ModuleRun of Element Module
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OZone � Results Fire resistance
OZone � Results Fire resistance