ciria c779 - frp bridges: guidance for designers...ciria c779 - frp bridges: guidance for designers...

CIRIA C779 - FRP BRIDGES: Guidance for DesignersJoint CIRIA and Composites UK publication sponsored by Highways England and Network Rail

31/10/2018 – Advanced Engineering, NEC Birmingham James Henderson

FRP Bridges: Drivers? Why FRP?

How?

Off Site Build Move to product based industry

Reduced Whole Life Costs Modularisation

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FRP Bridges: Drivers? Why FRP?

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FRP Bridges: Guidance for Designers

FRP Bridges: Guidance for Designers (Ciria C779)

Launch Date: 21st November 2018 at Ciria Office in London

Scope:

This guidance document is for the design, procurement, execution,

monitoring and inspection of new bridges where components, in

the form of shapes or systems, are made using fibre reinforced

polymeric composite material

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FRP Bridges: Guidance for Designers (Ciria C779)

Launch Date: 21st November 2018 at Ciria Office in London

Collaboration:

Industry and Academia collaboration providing guidance on FRP

bridge design and manufacturing building on the lessons learnt to

date

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Atkins Premier Composites University of Bristol

Optima Projects Jacobs University of Lancaster

Gurit WSP Pipex Px

Tony Gee and Partners University of Warwick Lifespan Structures

Delf Infra Composites Fibreline Composites Composites UK


Background to FRP Bridges:

History (Aberfeldy)

Sharing successes and lessons

learnt from previous structures

- 168m Span

- Built in 1992 (26 years ago)

- Student Project

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History (Aberfeldy)



- 168m Span


- Student Project

Lessons – coatings, inhibitors

added to resins, design loadings

(vehicle fatigue)….. Construction

process.

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History (West Mill Bridge)



- Polymer Concrete Surfacing


- Surfacing Failure (not tackled

in timely fashion)

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History (West Mill Bridge)



- Polymer Concrete Surfacing


- Surfacing Failure (not tackled

in timely fashion)

Lessons – surfacing stiffness,

bond promoters, protection

layers (APL’s), surfacing

replacement, load distribution.

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Example of Lessons Learned

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Example of Lessons Learned

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Materials

Resin types

Fibres and fibre reinforcements

Core materials

Composites processing methods

Adhesives

Mechanical properties

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Structural Design:

- Basis of Design (basic requirements, working life, actions, thermal effects,

robustness)

- Principles of Limit State Design (partial factors, environmental factors –

aligned to Eurocodes and Draft JRC Report)

- Analysis Methods and Idealisations

- Design of Joints and Connections

- Tyre Load Fatigue Testing

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Execution of FRP Bridges

- Procurement and Specification

- Fabrication (Surface Prep, Laminating and Bonding)

- Installation (Handling Storage) and Certification (QA/QC)

Inspection, Monitoring and Maintenance

- Inspection Techniques (NDT)

- Maintenance recommendations

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Sustainability

- Environmental Impact Case Studies

- Lifecycle Assessment example (Using

BCSA/Atkins Tool)

- End of Life

Summary and Recommendations

- Over 20 concluding recommendations

applicable to FRP Bridges.

Appendices

- Case Studies of FRP Bridges and AIP

Information (additional Info needs)

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Thank you / QuestionsIf you’d like to find out more visit:

https://www.ciria.org/Resources/Free_publications/Fibre_reinforced_polymer_bridges.aspx

© Atkins except where stated otherwise

Published by the Atkins Communications team, February 2018

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ciria c779 - frp bridges: guidance for designers...ciria c779 - frp bridges: guidance for designers...

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