Download WS_Introduction

Welcome to Graz
• Introduction of the WS hosts:
Prof. Dr. Gerhard Schickhofer
Thomas Bogensperger
Graz University of Technology
facts
Graz University of Technology
Austria / Europe
founded 1811, 7 faculties, students: 9190, staff: 1890
Faculty of Civil Engineering Sciences
about 1000 students ‘Diploma’, about 250 students
‘Bachelor’ and ‘Master’, 17 Institutes
Institute for Timber Engineering
and Wood Technology
1991:
since 2004:
Formation of the chair for Timber Engineering
Institute for Timber Engineering
and Wood Technology
Scientific staff: 6.0 FTE, third-party-budget: € 366.000 (2006)
Competence Centre
holz.bau forschungs gmbh
since 2002:
Acceptance and formation of
holz.bau forschungs gmbh
Scientific staff: 9.3 FTE, budget: € 1.018.000 (2006)
www.steiermark.at
www.graz.at
www.tugraz.at
www.lignum.at
www.holzbauforschung.at
Research Areas at the Institute
and Competence Centre
Topic 1
Topic 2
Timber Engineering (TE)
Wood Technology (WT)
Design and Construction Science (DCS)
Material and Structure Science (MSS)
AREA 1_SSTC
AREA 3_APTM
Shell and Spatial Timber
Constructions
Advanced Products and
Test Methods
AREA 2_IICS
AREA 4_MMSM
Innovative and Intelligent
Connection Systems
Material Modeling and
Simulation Methods
Organisatoric topics
Monday, 14th:
Hydraulic engineering
13:00 lunch
16:15 coffee
18:00 Closure
20:00 dinner „Gösserbräu“
Town‘s landmark „Uhrturm“
Thuesday, 15th:
Fluid mechanics and
heat transfer
9:00 start
11:10 coffee
13:45 lunch/mensa
(vis a vis)
16:00 coffee
Institute/competence centre
timber engineering and wood
technology
Welcome to Graz
• Introduction of the chairman:
Jochen Köhler
Swiss Federal Institute of
Technology, Zürich
Contents
• The COST framework
• The COST Action E55
– Status and Organization of the
Action
– Aim and Scope – the
Memorandum of Understanding
• Content of the Workshop
The COST Framework
• What is COST ?
– European COoperation in the Field of Scientific and
Technical Research
– Founded 1971
– 9 Scientific & Technical domains
– 34 COST Member States + 1 Cooperating Country
– COST Actions: Concerted Actions (Networks) of
nationally funded R&D
The COST Framework
• The Scientific & Technical Domains
– BMBS - Biomedicine and Molecular Biosciences
– CMST - Chemistry and Molecular Sciences and
Technologies
– ESSEM - Earth System Science and Environmental
Management
– FA - Food and Agriculture
– FPS - Forests, their Products and Services
– ISCH - Individuals, Societies, Cultures and Health
– ICT - Information and Communication Technologies
– MPNS - Materials, Physical and Nanosciences
– TUD - Transport and Urban Development
The COST Framework
FPS - Forests, their Products and Services
-> 28 running actions
6
Forestry
Pulp and Paper
12
10
9
1
Wood Technology
Timber Engineering
The COST Framework
• What is funded by COST ?
• Meetings, Workshops and Seminars
(Travel expenses)
• Short Term Scientific Missions (STSM)
• Publications
• Actions‘ Management
• Research is not directly financed,
but – communication and
dissemination is facilitated !
The COST Framework
• What is funded by COST ?
• Meetings, Workshops and Seminars
(Travel expenses)
• Short Term Scientific Missions (STSM)
• Publications
• Actions‘ Management
The yearly budget per
Action is around
90‘000 €
• Research is not directly financed,
but – communication and
dissemination is facilitated !
The COST Framework
• How are the Actions initiated ?
• A group of researchers has the vision of a new research
network
• The vision is formulated and the need is substantiated by
writing a draft ‚Memorandum of Understanding‘ (MoU)
• The draft MoU serves as a application document and is
submitted
• The MoU is reviewed and evaluated by several instances
within the COST administration
• In case of approval, the Action enters into force
• Time perspective: First submission - approval:
– 18 Month (E55)
– 8 Month (new ‚OpenCall‘ system)
COST Action E55 -
Modelling the Performance of
Timber Structures
• Status and Organization
of the Action
• Aim and Scope –
the Memorandum of
Understanding
General Information
• The Action started at December 15, 2006 with its
1. Management Committee (MC) meeting. The
duration of the Action is 4 years.
• The Memorandum of Understanding is signed by
16 countries – 2 countries indicated the intention
to sign (update 05/2007).
Austria, Belgium, Croatia, Denmark, Finland, France, Germany,
Ireland, Italy, the Netherlands, Norway, Portugal, Slovenia, Spain,
Sweden, Switzerland, United Kingdom, Lithuania
• The scientific work of the Action is organized by
having 3 working groups.
Organization of the
Action
• The activities within the action are organized and directed
by the MC. The MC consists of up to two delegated per
country.
• The MC delegated the responsibility for specific issues to
the ‚steering committee‘.
Chairpersons:
WG leaders:
Jochen KÖHLER
Swiss Federal Institute of Technology
Switzerland
Tomi TORATTI
VTT Technical Reserach Centre of
Finland
Annette HARTE
National University of Ireland, Galway
Ireland
André J.M. JORISSEN
SHR Timber Research
Netherlands
John Dalsgaard SØRENSEN
Aalborg University
Denmark
Management
Organization of the
Action
Management Committee
Steering Committee
Scientific Activities
Working Groups
Workshops
Co-authored
Papers
COST Office
Invited Experts
WG Meetings
STSM
Reports
The Memorandum of Understanding
Consists of 7 parts:
A. Background
B. Objectives and benefits
C. Scientific program
D. Organization
E. Timetable
F. Economic dimension
G. Dissemination Plan
Background
Objectives
Scientific Program
Timetable
Communication
The Life-Cycle of Timber Structures
Background
Objectives
Scientific Program
Timetable
Communication
The Life-Cycle of Timber Structures
Decisions under Uncertainty
Uncertainties related to
e.g.
• Traffic volume
• Loads
• Resistances (material,
soil,..)
• Degradation processes
• Service life
• Manufacturing costs
• Execution costs
• Decommissioning costs
Background
Objectives
Scientific Program
Timetable
Communication
The Life-Cycle of Timber Structures
Decisions under Uncertainty
Uncertainties related to
e.g.
• Traffic volume
• Loads
• Resistances (material,
soil,..)
• Degradation processes
• Service life
• Manufacturing costs
• Execution costs
• Decommissioning costs
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Derived from ‚End-User
Requirements‘:
•
•
•
•
•
Reliability
Serviceability
Durability
Good Value for Money
Good Appearance
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Structural Engineering Decision Problem:
Design Process:
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Structural Engineering Decision Problem:
Design Process:
Efficient
in terms of the
Performance
(e.g. reliability, expected cost)
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Structural Engineering Decision Problem:
Optimal Design:
Expected Benefit of the Structure
Benefit of the Structure in
Service
Reliability
Risk
E  B   I 1  PF  CD    CD  CF PF  CD  
E  B 
CD
0
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Structural Engineering Decision Problem:
Optimal Design:
Expected Benefit of the Structure
Benefit of the Structure in
Service
Reliability
Risk
E  B   I 1  PF  CD    CD  CF PF  CD  
E  B 
CD
0
Probability of Failure:
Pf  P  R  S  0
Pf  P  g  X   0  

g  x  0
f X  x dx
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Codes and regulations:
-Deterministic limit state
equations
-Loads, resistance, safety
factors
--> Decision support
tool for engineers
Derived by code
authorities
Traditionally based on
experience and
judgement
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Basis of Design:
-Toolbox for the formal treatment of
uncertainties in design
-Probabilistic models for loads and
resistances
-Reliability methods, decision theory
-->Decision support tool for
code authorities
-->JCSS Probabilistic Model
Code
+ Research findings (e.g.
CIB W18)
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
Background
Objectives
Scientific Program
Timetable
Communication
The Performance of Timber Structures
• Based on the most relevant and
exact Information available
• Consistent level of sophistication
Background
Objectives
Scientific Program
Timetable
Communication
What are the goals?
• Identify what is really
essential to research further
• Verify models for component
and system performance for
timber structures
• Extend the focus to the
operation and maintenance
phase of the structures’
lifecycle
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Assessment of failures and
malfunctions
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Identification of relevant
exposures and their
representation
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Improvement of the basic
understanding of structural
components and connections
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Improvement of the basic
understanding of wood
degradation processes
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Assessment of robustness and
system aspects for timber
structures
Background
Objectives
Scientific Program
Timetable
Communication
What are specific objectives?
• Development of risk management
and control methods
Background
Objectives
Scientific Program
The Benefit
• Improving design
methods, assessment
techniques and
maintenance policies
 Tools which make
engineers and planners
more confident working
with timber
 Structures which provide
expected high performance
Timetable
Communication
Background
Objectives
Scientific Program
Timetable
Communication
Scientific Program
• Three main areas:
→ Three Working Groups:
 System identification and
exposure
→ WG1
 Vulnerability of components
→ WG2
 Robustness of systems
→ WG3
Background
Objectives
Scientific Program
Timetable
Communication
WG1 – System identification and exposure
• Collecting information about failed and
malfunctioning timber structures and
components
• Analysis of the failure and malfunctioning
mechanism
• Identification of relevant design and assessment
situations
Background
Objectives
Scientific Program
Timetable
Communication
WG2 - Vulnerability of components
• Basic strength and stiffness properties of graded
timber material and engineered timber products
• Dependency of these properties on load and climate
scenarios, size dependencies
• Strength and stiffness properties of connections
• Modeling of the durability of timber components and
connections
Background
Objectives
Scientific Program
Timetable
Communication
WG3 - Robustness of systems
• Characterization of multi-scale variability in timber
structures
• Analysis of system effects for several types of
timber structures
• Qualification of robustness as a characteristic of
timber structures
• Establishing a framework for reliability based design
and assessment of timber structural systems based
on these considerations
Background
Objectives
Scientific Program
Timetable
Communication
Time Perspective / Milestones
Background
Objectives
Scientific Program
Timetable
Communication
Related National Projects
E.g.*
• Sweden/Finland: Assessment of Failures
• France: Glued Laminated Timber, Repair, System
effects
• Switzerland: Glued Laminated Timber, Reliability,
Grading
• The Netherlands: Connections, Grading
• Denmark: Moisture/Time – Strength/Stiffness
• Sweden: Moisture/Time – Strength/Stiffness
• Germany: Size effects, Assessment of Failures
• …
*(Information obtained during approval phase, needs to be updated)
Background
Objectives
Scientific Program
Timetable
Communication
Presentation of the National Delegations
• Presentation of the national
Delegations
• Prepared by the MC
COST E55 –
National
Delegations
• Draft version available
• Final version distributed by
mail
Background
Objectives
Scientific Program
Timetable
Communication
Link to research communities
and code authorities
Working Group for Timber
Structures of the international
Council for Research and
Innovation in Building and
Construction
CIB
W18
ISO Technical
Committee for
timber structures
ISO
TC 165
RILEM
COST E55
CEN
International
Association for
Building Materials
and Structures
JCSS
Joint Committee on Structural
Safety
The European
Committee for
Standardization
Background
Objectives
Scientific Program
Timetable
Communication
Link to other COST Actions
Quality Control of
Wood and Wood
Products
COST TU601
COST E53
COST E55
Robustness of
Structures
COST E29
Innovative Timber & Composite
Elements/Components for
Buildings
Background
Objectives
Scientific Program
Timetable
Communication
Dissemination
• Promoting interdisciplinary, international
research
• Participate in conferences organized by other
relevant associations
• Publishing of co-authored papers
• Publishing information on the WWW
• Scientific Reports
Background
Objectives
Scientific Program
Timetable
Communication
Dissemination
• Promoting interdisciplinary, international
research
• Participate in conferences organized by other
relevant associations
• Publishing of co-authored papers
• Publishing information on the WWW
• Scientific Reports
www.cost-e55.ethz.ch
Background
Objectives
Scientific Program
Timetable
www.cost-e55.ethz.ch
Communication
Summary of the MoU
• The main objective of the Action is to provide
the basic framework and knowledge required
for the efficient and sustainable use of timber
as a structural and building material.
• The scientific content will be developed by 3
working groups:
– WG1: System identification and exposures;
– WG2: Vulnerability of Components
– WG3: Robustness of Systems
• A lively interaction to other research
communities and code authorities is crucial
and will be actively developed / maintained.
Program of today
11.10
Presentation of the scope of the three working groups;
Tomi Toratti (WG I), André Jorissen (WG II) and John
D. Sørensen (WG III)
11.30
Keynote Lecture
Michael H. Faber (ETH Zurich, Switzerland)
Reliability Assessment of Structures
13.00
Lunch
Program of today
14.30
16.15
Presentations related to WG I / Chaired by Toratti
Analysis of Failures
Matthias Frese (TU Karlsuhe, Germany)
Analysis of failures on timber structures in Germany
Eva Frühwald (LTH Lund, Sweden)
Analysis of failures on timber structures based on a Nordic project
Heinrich Kreuzinger (TU München, Germany)
Guidelines on maintenance and failure assessment
Tomi Toratti (VTT, Finland)
Guidelines for quality in the timber building process
Coffee
Program of today
16.45
WG I Discussions
System Identification and Representation
The discussion is introduced and moderated by Tomi Toratti
18.00
Closure
Program of today
16.45
WG I Discussions
System Identification and Representation
The discussion is introduced and moderated by Tomi Toratti
18.00
Closure
20.00
Program of Tuesday
09.00
09.20
11.10
Presentation and Discussion of a draft TOC of the first COST E55
publication on the analysis of failures and malfunctions. (by Tomi
Toratti)
Presentations related to WG II / Chaired by André Jorissen
André Jorissen, TU Eindhoven, The Netherlands
Connections in Timber Engineering
Staffan Svensson, DTU Lyngby, Denmark
Modelling Duration of Load Effects
Reinhard Brandner, holz.bau forschungs gmbh, Austria
Bearing model for glued laminated timber in bending – new aspects
concerning modelling
André Jorissen, TU Eindhoven, The Netherlands
Durability Aspects
Discussions
Coffee
Program of Tuesday
11.40
Presentations related to WG III / Chaired by John D. Sørensen
John D. Sørensen, Aalborg University, Denmark
Introduction
Jochen Köhler, ETH Zurich, Switzerland
General principles for robustness
Gerard Canisius, BRE, UK
JCSS task group on Robustness
John D. Sørensen, Aalborg University, Denmark
Implementation of Robustness in Codes, System effect in Timber
Structures
Discussions
13.30 Conclusions (J. Köhler)
13.40 Closure
13.45 Lunch
(14:30 3. MC meeting)
Thanks for
your attantion!!
Intermediate-Term Planning
Workshop, Opening Seminar Graz
1st Draft / TOC, Report Failure Analysis
June ‘07
Final Document – National Delegations
June ’07
Announcement and call for contributions 2.WS
June ‘07
Submission of contributions 2.WS
Program 2. WS
2. WS, Eindhoven, The Netherlands
4. / 5. October 07
Core Group meeting, Report Failure Analysis
November 07
3. WS
13./14. March 08