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Practical Steps To Extend the Lives of Bridges
Engineers Ireland,
22 Clyde Road, Ballsbridge, Dublin 4, Ireland
31st January 2014
Practical Steps To Extend the Lives of Bridges
Prof. Eugene OBrien
Roughan O’Donovan Innovative Solutions
Ireland
An Introduction to the
Long Life Bridges Project
Practical Steps To Extend the Lives of Bridges
EU 7th Framework Programme
People Theme
Marie-Curie Actions
Industry-Academia Partnerships and Pathways (IAPP)
Call-FP7-People-2011-IAPP
European Commission for Research And Innovation
Practical Steps To Extend the Lives of Bridges
Aims – Training & Knowledge Transfer
Marie Curie is about training researchers
• Building diverse research careers
• Researchers can be in industry as well as in universities
Industry-Academic Partnerships and Pathways = Knowledge Transfer
• Enhancing Industry-Academia Collaboration
− Exchange of knowledge via exchange of people
− Embedding the research results in industry
Practical Steps To Extend the Lives of Bridges
Research Aim: To Extend the Lives of Bridges
• Background
− Effective Transport System
− Conservative design
− But conservatism is often uneven
− Deterioration may be in non-critical parts of
bridge
− Cost of strengthening
− If a deteriorated bridge is safe, we need to
know
...........Need to achieve more with less
Forth Road Bridge, Scotland
Old & New Forth Road Bridges, Scotland
Practical Steps To Extend the Lives of Bridges
Research Aim: To Extend the Lives of Bridges
• Project will deliver
− more road & rail bridges proven to be safe
− higher speeds on our (non-high speed) railway lines
− with less demand for non-renewable and carbon-intensive resources
− for less cost
Practical Steps To Extend the Lives of Bridges
Research Aim: To Extend the Lives of Bridges
.....and create jobs & industrial growth by stimulating the expansion of two
ambitious SME’s and increase their penetration into overseas markets.
Practical Steps To Extend the Lives of Bridges
Project Participants – University Partners
• Aalborg, Denmark
• Expertise in Risk Quantification
• Stockholm, Sweden
• Expertise in Railway Bridge Monitoring
Practical Steps To Extend the Lives of Bridges
Project Participants – Industry Partners
• SME (Consultant - Coordinator)
• Ireland
• At Leading edge of bridge assessment using SHM
• Advanced load and resistance modelling
• SME
• France
• Specialise in Uncertainty Engineering and Risk Analysis
• Expertise in Fatigue
Practical Steps To Extend the Lives of Bridges
Concept
WP1: Research
WP2: Knowledge Transfer & Training
WP3: Dissemination & Commercialisation
Practical Steps To Extend the Lives of Bridges
Concept
Growth & Jobs
WP1: Research
WP2: Knowledge Transfer & Training
WP3: Dissemination & Commercialisation
Practical Steps To Extend the Lives of Bridges
WP1 – Research Plan
3 Core Areas with Secondments
Task 1.1
Bridge Loading & Dynamics
Task 1.2
Life Cycle Evaluation
Task 1.3
Fatigue Evaluation
ROD (SME)
KTH (university)
Task 1.1: Railway Bridge Dynamics
Phimeca (SME)
AAU (university)
Task 1.3: Fatigue Evaluation
Task 1.2: Life Cycle Evaluation
Practical Steps To Extend the Lives of Bridges
Task 1.1 : Bridge Loading and Dynamics
• Accurately quantify the ‘true’ dynamic allowance for railway bridges with an acceptably low probability of exceedance using a probabilistic evaluation
Vehicle/Bridge Interaction Model1 Frequency Ratio vs. DAF
• Developed a semi-active damping system to reduce the dynamic excitation in bridge hangers
1: Yang, Y.B, Yau, J.D, WU, Y.S (2004) 'Vehicle Bridge Interaction Dynamics with applications to high speed railways', World Scientific Publishing Co. Pte. ltd, ISBN 981-238-847-8
Static
Total
LELE
DAF
Static
Total
~LE
~LEADR
ADR vs. DAF
Practical Steps To Extend the Lives of Bridges
Task 1.2 : Life Cycle Evaluation
• Developed a framework for probabilistic life cycle evaluation of
bridges, particularly new large cable stayed bridges
Practical Steps To Extend the Lives of Bridges
Task 1.3 : Fatigue Evaluation
• Developed a framework for probabilistic for fatigue design of steel
bridges, including stochastic models for significant uncertainties
Practical Steps To Extend the Lives of Bridges
WP2 & WP3 WP2: Knowledge Transfer & Training
Task 2.1 - Knowledge Transfer •Complementary skills •Workshops •Secondments •Experienced project team
Task 2.2 - Training •Industry vs. Academic environment •Mentors and professional training •Professional Development Plan
WP3: Dissemination & Commercialisation
Task 3.1 - Dissemination & Promotion of Results
•Conferences (IABMAS 2012, IABSE 2013, TRA 2014, Eurodyn 2014) •Local dissemination events •Long Life Bridges website
Task 3.2 - Exploitation & Protection of Results
•Confidentiality •Intellectual Property Rights •Publishing
Practical Steps To Extend the Lives of Bridges
Beyond Long Life Bridges
.....next generation SHM
Smart Maintenance Analysis and RemediaTion of Rail Infrastructure
BRIDGE Safety MONitoring
Virtual Structural Health Monitoring
Bridge Weigh In Motion
Practical Steps To Extend the Lives of Bridges
Prof. Eugene OBrien
Acknowledgement Long Life Bridges is a Marie Curie Industry and Academia Partnerships and Pathways project and is funded by the European Commission 7th Framework Programme (IAPP-GA-2011-286276).
Project Website
www.longlifebridges.com
Thank You