New technologies to extend the life of elderly rail infrastructure: Deliverable 1.3 in MAINLINE - a project within the EC 7th Framework Programme
2015 (English)Report (Refereed)
There are many traditional technologies available to extend the life of elderly rail infrastructure, some of which are being improved or developed, whilst new technologies continue to emerge.In two earlier reports a benchmark of new technologies was given and assessment methods were presented, ML-D1.1 (2013) and ML-D1.2 (2013). In this report, ML-D1.3, an overview is given of some of the most promising new or updated technologies. Based on the findings, work in the Mainline project has focused on the following two areas for bridges, tunnels and track:- Assessment methods- Repair and Strengthening methodsSome of the methods are still under development and may not yet be available commercially. Hence these are presented on a “for information” basis and as something that may be introduced on a broader scale in a near future.In the report assessment and strengthening of bridges are treated in Chapter 4 and Chapter 5.Tunnels are treated in Chapter 6 and track and earthwork in Chapter 7.The report also includes with five appendices with details of important work that has been donein the MAINLINE project. Appendix A presents results from the assessment and full scale testing to failure of a 50 year old metallic truss bridge. Appendix B presents results from the strengthening by post-tensioning of a concrete trough bridge. Appendix C presents methods to extend life for tunnels. Appendix D proposes methods for the assessment of fatigue andAppendix E, finally, gives a fairly comprehensive list of references on how to extend the life of structures.A Guideline for application of the new technologies is given in ML-D1.4 (2014).
Place, publisher, year, edition, pages
2015. , 194 p.
Research subject Structural Engineering; Attractive built environment (AERI)
IdentifiersURN: urn:nbn:se:ltu:diva-25026Local ID: d843616e-338a-4923-9613-243bfd2c9435OAI: oai:DiVA.org:ltu-25026DiVA: diva2:998078
Godkänd; 2015; Bibliografisk uppgift: MAINLINE MAINtenance, renewal and Improvement of rail transport iNfrastructure to reduce Economic and environmental impacts Collaborative project (Small or medium-scale focused research project) Theme SST.2011.5.2-6.: Cost-effective improvement of rail transport infrastructure; 20150519 (elfgren)2016-09-292016-09-29Bibliographically approved