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Introduction of Asian Concrete Model Code Jongsung Sim Hanyang University, Korea
Transcript of Introduction of Asian Concrete Model Code - acciasia.com · Introduction of Asian Concrete Model...
Introduction of Asian Concrete
Model Code
Jongsung SimHanyang University, Korea
Department of Civil and Environmental Engineering
Hanyang University, Ansan-si, 425-791, Korea
Tel: +82-31-400-5143
Fax: +82-31-400-4567
E-mail: [email protected] /[email protected]
1987 - Present Professor, Dept. of Civil and Environmental Engineering, Hanyang University
2013 President, Korean Society of Civil Engineers (KSCE)
2011 - 2012 President, Korea Concrete Institute (KCI)
2009 - 2010 President, Asian Concrete Federation (ACF)
2010 - Present Fellow Member, American Concrete institute (ACI)
Brief Resume
Jongsung Sim
Concrete Model Code / Economic bloc.
Centering the U.S., ACI 318 Building
Code has been created in the
American bloc, with its design
concept based on the USD (Ultimate
Strength Design)
NAFTA
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Concrete Model Codes
Ultimate Strength Design (USD)
-Concept
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𝑄 ≤ 𝜙𝑅
Ultimate Loads
(which are applied to a
structure or its components)
Strength Reduction
factor
Strength/Resistance
(which is ability of structures to
withstand an applied load without
failure)
Concrete Model Codes
Concrete Model Code / Economic bloc.
In Europe, members of fib (The
International Federation for Structural
Concrete) created the MC2010 (Model
Code 2010), and its design concept is
based on the LSD (Limit state Design).EU
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Concrete Model Codes
Limit State Design (LSD)
-Concept
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𝑆𝑑 ≤ 𝑅𝑑
Design resistance is determined from the characteristic resistance of the particular component
Design load effectis obtained from a structural analysis for the design load 𝐹𝑑𝑖is obtain by multiplication of the characteristic load by a specified load factor
Partial safety factor for material
• Ultimate limit state (ULS)
• Serviceability limit state (SLS)
• Fatigue limit state (FLS)
• Accidental limit state (ALS)
Considering….
Concrete Model Codes
Concrete Model Code / Economic bloc.
In Asia, International Committee on
Concrete Model Code for Asia(ICCMC)
• Founded in 1994
• Members from 15 countries
• Technical Committee in ACF
(after merger with ACF in 2011)
☞ ICCMC became TB/TC in ACF
Australia
Bangladesh
China
India
Indonesia
Malaysia
Vietnam
JapanKorea
Pakistan
Singapore
Taiwan
PhilippinesThailand
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Concrete Model Codes
Concrete Model Code / Economic bloc.
Asian Concrete Federation (ACF)
In Asia, the ACMC (Asian Concrete
Model Code) has been created by a joint
group ICCMC (International Committee
on Concrete Model Code for Asia), and
the design concept for ACMC is the PBD
(Performance Based Design).
Concrete Institute of Australia Indonesia Society of Civil and
Structural Engineers Indian Concrete Institute Japan Concrete Institute Korea Concrete Institute Mongolian Concrete Association Singapore Concrete Institute Taiwan Concrete Institute Thailand Concrete Association Vietnam Concrete Association
☞
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Concrete Model Codes
Performance Based Design (PBD)
PBD
LSD
ASD USD
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About ACMC
Performance Based Design (PBD)
-Concept
Requirements on safety, serviceability and
durability for RC structure should be defined
clearly.
Performance of designed structure should be
satisfied required performance by structural
analysis or experiments.
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About ACMC
Performance Based Design (PBD)
-Concept
Required performance
Index (PI)
Inherent performance Index (PI)
Inherent performance should be greater than required performance.
Verification formula for required performance
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About ACMC
Performance Based Design (PBD)
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maxM M
u
Safety
No failure in flexure
(PI=moment)
Aesthetics
No visible crack
(PI=crack width)
maxw wallowable
Safety
No failure in flexure
( =moment)
Aesthetics
No visible crack
( =crack width)
Examples of PI
About ACMC
≤ ≤
Required performancesPerformance index, PI
Major items Sub items
Serviceability
Comfortable
ride/walkAcceleration, natural period, gap/step, pavement type
Comfortable stay Deformation
Anti-vibration Vibration level, natural period
Anti-nose Noise level, soundproof wall type
Anti-odor Substance density
Anti-humidity Humidity
Aesthetics Crack density, dirt density
Shielding Amount of substance/energy penetrating, crack width
Permeability Amount of substance/energy penetrating, porosity
ReparabilityAxial force, bending moment, shear force, torsion,
stress range, displacement
SafetyAxial force, bending moment, shear force, torsion,
stress range, displacement
Performance Based Design (PBD)
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About ACMC
Composition of ACMC
• Safety• Serviceability • Reparability
Performance-based Concept
• Structural design• Materials and construction• Maintenance and repair
Three Parts
• Common Code (Level 1)• Local/Specific Code (Level 2)
Multi-level Document Structure
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About ACMC
Examples of ACMC Level 2 Documents
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Title Type Year
Thailand Standard for Materials and Construction - Guidelines for materials and construction of concrete structures based on Thai Standard Specification
National code
2013
Maintenance for Carbonation - Guidelines for maintenance and rehabilitation of concrete structures subjected to carbonation-induced deterioration
Technical report
2011
Maintenance for Seismic Action - Guidelines for the seismic assessment and retrofit of concrete structures
Technical report
2010
Design for Seismic Actions - Guidelines for designing transverse confinement reinforcement of RCC columns against seismic actions
Technical report
2009
Design for Fire Actions - Guidelines for the Design of Reinforced Concrete Buildings against Fire Actions
Technical report
2007
Materials and Construction - Guidelines for materials and construction based on Japanese Standard Specifications
Technical report
2005
Vietnam National Standard TCXDVN 318: 2004- “Concrete and Reinforced Concrete Structures - Guide to Maintenance”
National code
2004
Maintenance for Chloride Attack - Guidelines for maintenance and rehabilitation of concrete structures against chloride induced deterioration
Technical report
2004
Design for Seismic Action - An example of seismic performance examination for RC building designed according to the Architectural Institute of Japan (AIJ) Guidelines
Technical report
2001
About ACMC
The PBD concept specifies only required performance, which should be internationally common, but verification method for required performance, which may be different internationally.
The ACF has to be to provide Asian countries an opportunity to use ACMC in designing concrete structures, in the process of recognizing the competence of ACMC.
Asian Concrete Model Code (ACMC) is the first international code in Asia, the first structural code with performance-based design (PBD) concept and the first structural code covering maintenance and repair.
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Concluding remarks
