Seminar on Standardisation in Research and Innovation · Seminar on Standardisation in Research and...

Seminar on Standardisation in Research and InnovationPractical tools for the dissemination and implementation of research results

Brussels - 10th November 2011 - Louis-Guy CAJOT

Brussels - November 2011 Seminar on Standardisation in Research and Innovation 2

DIFISEK & DIFISEK+

DIssemination of structural FIre Safety Engineering Knowledgethroughout Europe.

website www.difisek.eu

4: Thermal response

time

R

5: Mechanical response 6: Possible collapse

time

Θ

2: Thermal action 3: Mechanical actions

Loads

Steelcolumns

1: Ignition


To disseminate effectively Structural Fire Safety Engineering Knowledgegained in numerous ECSC and RFCS funded projects during the last about 20 years:

NFSCNatural Fire Safety Concept.

Objective

Structural Fire Safety Engineering

StaticLoads

WindSelf Weight

Imposed LoadSnow.........

Evacuation Time

Natural Fire Curveq

Natural Fire CurveDesign

GLOBAL BEHAVIOUROF THE STRUCTURE

tfi,dnat

RealisticLoad Combination

(Accidental)

Natural Fire Curveq

t

t

t fi,requ

Consequenceof Structural

Failure

FireCharacteristics

Ventilation ConditionsFire Load

GeometryThermal Characteristics

of Enclosure

WG3

ProbabilisticAspect

ActiveFire Measures

Risk of FireActivation

WG4

WG5WG1


NFSC2Natural Fire Safety Concept - Full-scale tests,implementation in the Eurocodes and development of a user-friendly design tool.

NFSC-valNatural Fire Safety Concept – Valorisation.

NFSC-CFDNatural Fire Safety Concept - The developmentand validation of a CFD-based engineeringmethodology for evaluating thermal action on steel and composite structures.

...



Time [min]0

200

400

600

800

1000

1200

0 30 60

θ [°C]

90 120 180

Fire... What fire ?


Standard Fire (ISO 834)• Conventional• No link with real fires

• Requirement in terms of duration

The ISO curveðhas to be considered in the WHOLE compartment, even if the compartment is hugeðnever goes DOWNðdoes not consider the PRE-FLASHOVER phaseðdoes not depend on FIRE LOAD and VENTILATION CONDITIONS


standard fire natural fire

classification fire safety eng.

fire safety eng. fire safety eng.

Prescriptive Performance based

Structural Fire Safety EngineeringClassical approach


Æ Steel protection for fire resistance > 30 minutes

Additionnal cost of the protection > 40% of the finished steel cost

0

200

400

600

800

1000

0 30 60 90 120time [min]

15 ’ 30 ’ 60 ’ ISO-curveHE180BHD400x382HE320A 15mm sprayed material

The protection must be optimized and applied where it is really needed.

Classical approach based on standard ISO -834 heating curveSingle element test


Scientific analysis based on :ð Fire scenarioð Physical parameters influencing the fire development (fire load,

ventilation, active fire fighting measures, …)

Standard curve

Temperature

Cooling ….

ISO834 standard fire curve

Ignition - Smouldering

Pre- FlashoverPre- Flashover

Heating

Post- Flashover1000 -1200°C

Post- Flashover1000 -1200°C

Natural fire curve

Time

FlashoverFlashover

Structural Fire Safety EngineeringNatural Fire


standard fire natural fire

classification fire safety eng.

fire safety eng. fire safety eng.

Prescriptive Performance based

Fire Safety Engineering + Global Structural Behavior = Fire Development



Æ Fire safety concept evaluation based on natural fire.Æ Required data for the fire development calculation methods (fire load [MJ/m²], fire

spread, rate of heat release [kW/m²]).Æ Definition of model scenario for usual buildings (offices, schools, shops,…).Æ Simulation of the behaviour of a part or the whole structure submitted to the different

fire scenarii and to the static loads.

European research in the field of the fire engineering achieved between 1994 ? 2006allows to develop Fire Engineering approach


including :

Æ Optimised and competitive solutions.Æ More controlled and quantified safety (Global structure behavior, more realistic fire

scenarii).Æ More efficient solutions as more in line with the targeted safety objectives.

and leading to :


Æ Existing regulations and standards based on standard fire.Æ Different regulations depending on the countries and even

on the regions.Æ Habits and perception of the professionals of construction.Æ Low expertise of engineers, architects in that domain.Æ Lack of training in that domain.Æ No userfriendly calculation tools.

The implementation of the research results met the following difficulties :

solved by :

Æ The natural fire was introduced in the Eurocodes, particularly Eurocode 1 - Fire Part.Æ The fire engineering has been dealt with in decree and regulations in different european

countries.Æ Userfriendly calculation tools were developed (Ozone), and are freely available on

www.difisek.euÆ Trainings were, and are organized.Æ A network of competent and qualified engineering offices in the field of fire engineering was

developed (www.securewithsteel.com).


EUROPEAN STANDARD

NORME EUROPEENNE

EUROPÄISCHE NORM November 2002

ICS 13.220.50; 91.010.30

English version

Eurocode 1: Actions on Structures - Part 1 -2 : General Actions –Actions on structures exposed to fire

Eurocode 1 – Actions sur les st ructures –Partie 1 -2 : Actions Générales – Actions sur les structures exposées au feu

Eurocode 1 – Einwirkungen auf Tragwerke –Teil 1 -2: Allgemeine Einwirkungen – Einwirkungen im Brandfall

This European Standard was approved by CEN on 1 Sept ember 2002.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up -to -date lists and bibliographical reference s concerning such national standards may be obtained on application to the Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation unde r the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Ger many, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2002 CEN All rights of exploitation in an y form and by any means reserved Ref. No. EN 1991 -1 -2:2002 Eworldwide for CEN national Members.

EN 1991 - 1-2


EN 1990

Combinationof Actions

EN 1991

ActionsSelf weight

SnowWind

Variable loadsActions during

execution

EN 1991-1-2

Fire Actions

EN 1992EN 1993EN 1994

...

DesignEurocodes

EN 1992-1-2EN 1993-1-2EN 1994-1-2

...

Fire Design

EN 13670concreteEN 1090

steel

Executionstandards

EN 201-1concrete

EN 10025steel

Materialstandards

EN 1997

Design of foundations

EN 13381

Productstandards

Fire protection of structural members

Structural design of building in case of fire according to Eurocodes& National Annexes

TTT

TT


T


1975-1989

1989

1991-1998

1999-2000

2000

2002

2003

2007

2010-2011

2015

Launch of Eurocode program by the European Commission

Transfer of the Eurocodes program to the CEN and creation of theCEN/TC 250 “Structural Eurocodes ”

Publication of the first generation of Eurocodes (pr ENV)

Revision procedure (2 years) and decision to translate the ENV t o EN

Start of the development of the second generation of Eurocodes (EN)

Publication of the first Eurocode (EN 1990)

European Commission recommendation to the member states in orderto approve and implement the Eurocodes EN

Publication of all the 58 EN sub -parts

Implementation of the Eurocodes EN with National Annexes in eachmember state and withdrawal of the conflicting national standard s

Revision of the Eurocodes

Natural Fire in Closed Car ParkNatural Fire in Large Compartment

NFSC

NFSC 2Design tools for multi -storey buildings exposed to fireNFSC -CFD

DIFISEK

DIFISEK +Advanced 3D modelling

Multi-storey building subjected to Natural Fire


Eurocode+

National annexes

Structural fire resistanceR [min] =

R0, R30, R60, R90, R120depending on

consequences of failureevacuation timebuilding heightnumber of levelsfireman safety...

Rreq [min]


National fire safety requirements


’Fire Safety Engineering ’ application to buildingsin G-D of Luxembourg

DIFISEK - DIssemination of FIre Safety Engineering KnowledgeRFCS dissemination project

Austria02 oct 08

Belgium22 oct 08 Germany

14 nov 08

Spain12 nov 08

France01 july 08

UK20 sept 08

Czech Rep24 sept 08

Italy03 dec 08

Portugal05 dec 08

Poland28 nov 08

Swedennov 08

Hungary29 oct 08

Romania14 nov 08

Lithuania05 dec 08

Greecenov 08

Slovenia15 oct 08

Estonianov 08

Part 1: Thermal & Mechanical ActionsPart 2: Thermal ResponsePart 3: Mechanical Response of Structures in Fire Part 4: Software for Fire DesignPart 5-1: Worked Examples Part 5-2: Illustration of Completed Projects

Presentations and Syllabus in PDF for the 5 parts.A total of about 4960 powerpoint slides and 3330 document pages

ð Dissemination package in line with 17 eurocode National annexes

ð A total of 1402 participants have attended the different seminars

ð Training of Design Offices www.securewithsteel.com

Translated into 16 languagesUK, German, French, Spanish, Dutch, Czech, Italian, Portuguese, Polish, Swedish, Hungarian, Romanian, Lithuanian, Greek, Slovenian.


www.difisek.eu


Office building in Luxemburg



Structural Fire Safety EngineeringUse by architects, engineers, designers, firemen, insurance compagnies, authorities, professors, students

0

500

1000

1500

2000

2500

3000

3500

4000

4500

DIFISEK+

Total number of downloads

0

10000

20000

30000

40000

50000

60000

Tons of steel in building designed with Fire Engineering

Total of downloads = 11575Total of tons = 120943


Structural Fire Safety EngineeringFuture Standards & Regulations


Conclusion

R&D

RegulationsAuthoritiesFiremen...

Daily PractiseArchitectsEngineers...

Standardisation

www.difisek.eu

www.securewithsteel.com www.bookshop.europa.eu

Seminar on Standardisation in Research and Innovation · Seminar on Standardisation in Research and...

Documents

Transcript of Seminar on Standardisation in Research and Innovation · Seminar on Standardisation in Research and...