welcome of lebanon in fib overview of activities...

FÉDÉRATION INTERNATIONALE DU BÉTON – INTERNATIONAL FEDERATION FOR STRUCTURAL CONCRETE FÉDÉRATION INTERNATIONALE DU BÉTON – INTERNATIONAL FEDERATION FOR STRUCTURAL CONCRETE

WELCOME OF LEBANON IN FIB

OVERVIEW

OF ACTIVITIES AND

MODEL CODE 2010

György L. Balázs, Immediate Past President of fib BME (1872)

Budapest University of

Technology and Economics

20 June 2013

BEIRUT, Lebanon


Lebanon, Beirut

2/49


Beautiful

nature

3/49


Beautiful residential

houses


I was very happy

to meet

Khaled Awad and

Dr. Maher El Barrak

at the

„Future Concrete” 2012

Conference in

Doha, Qatar 5/49

FÉDÉRATION INTERNATIONALE DU BÉTON – INTERNATIONAL FEDERATION FOR STRUCTURAL CONCRETE

Statutory member countries

fib member countries

Argentina

Australia

Austria

Belgium

Belarus

Brazil

Canada

China

Croatia

Cyprus

Czech. Rep

Denmark

Egypt

Estonia

Finland

France

Germany

Greece

Hungary

India

Iran

Israel

Italy

Japan

Lebanon Luxembourg

Netherlands

New Zealand

Norway

Poland

Portugal

Romania

Russia

Serbia

Slovak Rep

Slovenia

South Africa

South Korea

Spain

Sweden

Switzerland

Turkey

Ukraine

United Kingd.

USA

1952 (1998) - 2013

Non-members

International Federation for Structural Concrete

Balázs: Lebanon: new Member, fib activities and MC2010, Beirut, 20 June 2013 6/49

(Actualized: June 2013)


Welcome for

Lebanon in



fib – CEB – FIP PRESIDENTS

1953-57 André Balency-Béarn (F)

1967-68 Franco Levi (I)

1968-71 Hubert Rüsch (D)

1971-78 Andrew Short (UK)

1979-83 Julio Ferry-Borges (P)

1983-87 Theodossios Tassios (GR)

1987-98 Roy Rowe (UK)

1953-58 Eugéne Freyssinet (F)

1958-61 Eduardo Torroja (E)

1961-66 Yves Guyon (F)

1966-70 Franco Levi (I)

1970-74 Gerrit F. Janssonius (NL)

1974-78 Ben C. Gerwick Jr. (USA)

1978-82 Roger Lacroix (F)

1982-84 John Derrington (UK)

1984-88 Hans Wittfoht (D)

1988-92 René Walther (CH)

1992-96 Jan Moksnes (N)

1996-98 Michel Virlogeux (F)

1998-2000 Michel Virlogeux (F)

2000-2002 Joost Walraven (NL)

2002-2004 Jim Forbes (AUS)

2005-2007 Giuseppe Mancini (I)

2007-2008 Hans-Rudolf Ganz (CH)

2009-2010 Michael Fardis (GR)

2011-2012 György L. Balázs (H)

2013-2014 Gordon Clark (UK); Harald S. Müller, Dy President



C1 STRUC-

TURES

Applications Bridges Marine

structures

High rise

buildings

C2 SAFETY AND PERFORM.

C3 ENVIRON-

MENTAL

Protective

concrete struct.

Green

concrete

Env. design

to c. struct.

Life Cycle

Assessment

Life cycle

perspective

C4 MODELLING

AND DESIGN

SLS ULS Fire design PC based

Modelling

Bond models

C5 SERVICE

LIFE

RC sturct. in

corrorsive env.

Repair Birth- rebirth

certificate

Sesimic on

precast

Assessment of

existing str.

C6 PREFABRICA

-TION

Hollow-core

slabs

Connec-

tions

Precast

housing

Seismic of

precast

Precast

sandwich

C7 SEISMIC

DESIGN

Buildings Seismic

codes

Performance

based desgn

C8 CONCRETE LWC, FRC,

UHPC

Flow-

able c.

Code models Aesthetics Performance

besed spec.

C9 REINF. &

PREST. MATS

Reinf. systems,

Dur. of PC

FRP,

Anchors

External

tendons

Cable for

bridges

Behav. in

cryogenic

C10 CONSTRUCT.

SAG Dissemination

of knowlegde

Fastenings New MC Composite

constrction

Ass.ment of

existng st.

Sustainability



1970 1980 1990 2000 2010 2020

1978

CEB-FIP

Model Code 78

ENV 1992-1-1

CEB-FIP

Model Code 90

EN 1992-1-1

fib

Model Code 2010

Revised

EN 1992-1-1

MC78 and MC90 were used in Brazil partly as national codes

Collaboration with Asian Model code

Collaboration with African Model code

Model Codes are used as reference documents

both in research and in design

STRONG INFLUENCE OF fib (CEB-FIP) MODEL CODES

ON CODE DEVELOPEMENTS

fib is a pre-normative organization



Results of work of

Coms &Task Groups is

published in

fib bulletins

• Technical reports

• State-of-art reports

• Manuals or Guides

• Recommendations

• Model Codes



Recent Volumes of the

Structural Concrete Journal of fib

Impact factor



fib Textbook: STRUCTURAL CONCRETE

Behaviour, design and performance



(As of Nov. 2012)

- courses 2003 - 2013 2011-12: Nicosia, Athens, New-Delhi, Brescia, Johannesburg,

Durban, Cape Town, Milano, Napoli, Ankara



Upcoming

Symposia and

Congresses:

Mumbai

Congress

2014

2015: Copenhagen; 2016: South Africa; 2017: The Netherlands; 2018: Australia



EVOLUTION OF CONCETE STRUCTURES

http://hirlevel.ferlingpr.com

Lambot, concrete boat, 1848

http://www.concreteships.org

Ferrocement sailboat


http://hirlevel.ferlingpr.com/

http://www.concreteships.org/



17/49


ART OF DRAWINGS Small Sport Hall, Rome (1956)

Archivio Storico, CONI Pier Luigi Nervi: Architecture as Challenge

18/49


Balázs, G. L.: Harmonization of material, structural form and conceptual design 19/XX

Large Exhibition Hall, Paris, Défense Centre des nouvelles industries et technologies, built 1956-58, Consultant: P. L. Nervi

Jürgen Joedicke, The Works of Pier Luigi Nervi

Mo-

dels

19/49


Simple

structures

20/49


More complicated

structures

21/49


3/34


22/49


MODEL CODE

1978

MODEL CODE

1990

BULLETIN 34 Service Life

Design

MODEL CODE

2010

EVOLUTION OF MODEL CODES

CEB 165

Seismic Design



Voting



PRESENTATIONS OF MC2010 BEFORE

VOTING Technical Council − 28 Oct 2011, Lausanne

25/49


VOTING ON MODEL CODE 2010 29 Oct 2011, Lausanne



MODEL CODE 2010

Most comprehensive code for concrete

structures.

Includes whole life cycle of concrete structures:

DESIGN CON-

STRUC

-TION

CON-

SERVA-

TION

DIS-

MANTL-

ING



MODEL CODE 2010

Safety Servicability Durability Sustainability

Performance based requirements

New

types

of

concretes

New types

of

reinforce-

ments

Composite

structures



1. Resistant

2. Serviceable

3. Durable

4. Constructable

5. Aesthetic

6. Economic

CONCRETE MUST BE:



7. Robust enough to avoid

progressive collaps

8. Require minimal maintenance

9. Able to embed waste materials

10. Provide barriers against hazards

11. Provide protection against accidents

12. Reusable

13. Recycable

14. Fire and earthquake resistant

15. Environmentally compatible and

support sustainability

and also:



CONTENT – fib MODEL CODE 2010

3. BASIC PRINCIPLES

1-2. NOTATIONS, SCOPE, TERMINOLOGY

4. PRINCIPLES OF STRUCTURAL DESIGN

5. MATERIALS

6. INTERFACE CHARACTERISTICS

7. DESIGN

8. CONSTRUCTION

9. CONVERVATION

10. DISMANTLEMENT



MC 1990 MC 2010 Criterion

concrete strength

concrete type

20 … 60 (90) MPa

normal strength

20 … 130 MPa

normal strength

high strength

lightweight (10 … 90 MPa)

self-compacting

green

different ranges of applicability, depending on the related load

(static, impact etc.); temperature range: mainly 0 °C < T < 80 °C

concrete loads

tailor made concrete reference to test standards or

recommendations

Reflections of Current Innovations in fib MC2010 (H. S. Müller)



(Photo: Salem G. Nehme)

CONCRETE TODAY IS DIFFERENT FROM CONCRETE YESTERDAY

Ductility decreases with increase of strength

5… MATERIALS



fib MC 2010: New Shrinkage Model

MC 2010: mechanism based summation approach MC 1990: conventional

drying shrinkage

ssRHcmsscs ttftt , sdsRHcmcdsascmcasscs tttftftt 00,

autogenous shrinkage total shrinkage cs cas cds

age of concrete t ts

RH = 65%

sealed

duration of drying t-ts

shrinkage

cs

RH = 65%

sealed

HSC

NSC

autogenous shrinkage εcas

drying shrinkage εcds

HSC

approach:

cscas 05.0

cdscascs

NSC

negligible

cscas 05.0

MC 2010: mechanism based summation approach

(H. S. Müller)



(Photo: Zsuzsanna Józsa, Rita Nemes)

LIGHWEIGHT AGGREGATES



STEEL FIBRES

POLYMERIC FIBRES

GLASS FIBRES

36/49


P

P P

PPcr crP

crack formation

crack

crack formation

localization

Softening or hardening behaviours of FRC in

axial tension (Figure 5.6-2 of MC2010)



Stress-strain diagrams for reinforceing steel for prestressing steel and for

FRP in MC2010 (Figures of MC2010 from Ch. 5.2)



Non-metallic (FRP) reinforcements:

Promising alternatives to steel?

39/49


Döllnitz Creek bridge - Oschatz, Germany (2005)



fib MODEL CODE 2010

6. INTERFACE CHARACTERISTICS

Bond of reinforcement

Connections: Concrete to concrete

Concrete to steel

FRP pre-

stressing wire

Steel pre-

stressing wire



fib MODEL CODE 2010

7… DESIGN Conceptial design

ULS:

Flexure, Shear, Torsion, Punching,

Compressed members, Strut-and-

tie models, Fatigue,

Fire, Explosion, Earthquake



Oct. 2001

Gotthard tunnel

FIRE DAMAGES serious

deterioration

Prestressed roof girder

Budapest, 1985 43/49


σ-ε in

FIRE

(Schneider,

Lebeda, 2000)

(Reinhardt, 1973)

44/49


EARTHQUAKE – KOBE, Japan

Relative displacements

45/49


FRP strengthening techniques

using

angle

profiles

EBR NSMR-S NSMR-B NSMR-T

Anchorage

techniques for

EBR

using T

section

fib MODEL CODE 2010 9. CONSERVATION



SUSTAINABILITY

Malediven

47/73

CO2 ?

fib MODEL CODE 2010

7... DESIGN We have to save them

47/49


General Assembly, Lausanne, 29 Oct. 2011 – MC2010 Voting 48/25

CONCLUSIONS

48/49


THANK YOU FOR YOUR

ATTENTION AND THANK YOU

FOR JOINING TO THE WORLD

OF


welcome of lebanon in fib overview of activities...

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