| 11. |
- Melbourne, Clive, et al.
(författare)
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Masonry Arch Bridges : Sustainable Bridges Background document 4.7
- 2007
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Rapport (refereegranskat)abstract
- A recent survey showed that 40% of existing rail network bridges in Europe are masonry arches. More than 60% of those bridges are over 100 years old and still carry ever increasing levels of loading and increasing volumes of traffic. Due to the constantly increasing weight of rail traffic there is increasing demand for better understanding of their life expectancy and fatigue limits. It is imperative that the bridge stock is not adversely affected by these changes in the loading regime and that appropriate assessment, modelling, repair and strengthening techniques are available.This background document is an attempt to address and solve the above questions.To this end, the document is divided in the following parts:D4.7.1 Structural assessment of masonry arch bridgesD4.7.2 Numerical analyses of load distribution and deflections in railway bridge transitionzones due to passing trainsD4.7.3 Methods of analysis of damaged masonry arch bridgesD4.7.4 Potentiality of probabilistic methods in the assessment of masonry arches
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| 12. |
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| 13. |
- Sarmiento Nova, Silvia Juliana, et al.
(författare)
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A risk-based robustness evaluation of a prestressed concrete bridge
- 2023
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Ingår i: Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability - Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022. - London : CRC Press. - 9781032345314 ; , s. 2045-2052, s. 2045-2052
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Konferensbidrag (refereegranskat)abstract
- Existing bridges were designed to satisfy old specifications, and most of them were based on a member-oriented approach. A bridge superstructure is constituted by a group of elements that together form a system, and depending on how robust the system is, a member-oriented approach losses accuracy. Therefore, in this study a preliminary framework of how to assess concrete bridges' robustness is presented. The framework integrates a metamodel-based reliability analysis, and the risk concepts to evaluate the robustness level for concrete bridges considering failure probabilities and consequences. A case study of a prestressed multi-beam concrete bridge is used to validate and illustrate the methodology. The capacity of the individual elements, as well as of the intact and damaged structural system are calculated using finite element modeling (FEM). It was concluded that the framework proposed can be used to assess structural robustness with low computational cost, for the cases in which FEM is implemented.
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| 14. |
- Suttie, Ed, et al.
(författare)
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Performance Based Specification of Wood - Project CLICKdesign
- 2020
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Ingår i: Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020. - : CIMNE. - 9788412110180 ; , s. 457-464
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Konferensbidrag (refereegranskat)abstract
- This paper introduces the ForestValue research project CLICKdesign - delivering fingertip knowledge to enable service life performance specification of wood. The consortium is working on a primary innovation to move from the complex, fragmented and general to the easy-to-use, consolidated and specific by provision of a digital tool for specifiers. Other materials tackle this and provide designers and architects with software. The specification of performance of wood products is complex and fraught with inconsistency and requires use of multiple platforms for data, experience, standards and national recommendations. CLICKdesign will provide a tool that has within it the decades of research, the complexity of the standards specification systems and the variation of approach due to tradition, materials and culture across Europe and beyond. A simple tool for nonexpert public users will be available as well as a tool accessible to professional users that will be refined with industry to ensure relevancy and accelerate uptake and use.
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