Suchergebnisse

The member states of the European Union organise the regular inspection and condition assessment of their railway infrastructure asset on national level. Advanced non-destructive testing is not included as part of most regular railway bridge inspection rules. The paper presents a guideline foe inspection and condition assessment of railway bridges promoting especially non-destructive testing (NDT) methods. Besides the state of the art, the guideline summarises the latest steps of research, performed within the project Sustainable Bridges (SB) and documented as background documents. Based on the owners needs, the guidelines gives hints for application of NDT to all bridge types including subsoil and foundations. The guideline proposes, how to implement the refined non-destructive inspection tools for concrete bridges, metal and masonry arch bridges. For the use by bridge owners decision makers or inspectors during inspections the bridge defect catalogue and the NDT toolbox with one page information about the available non-destructive testing techniques should be useful. ; Comissão Europeia ...

Framework Programme of European Union - Project "Sustainable Bridges – Assessment for Future Traffic Demands and Longer Lives", contract No ...

The aim of this work is creating basis for unified and more objective assessment of bridge condition and for application of expert tools in evaluation process. The degradation processes and the relevant NDT techniques are presented on the background of the causes and the effects of these processes, taking into account: factors which influence degradation processes, mechanisms of degradation and effects of degradation with proposed methodology of identification and classification of the damages in concrete bridge structures. The proposed uniform taxonomy of degradation processes of the concrete railway bridges as well as presented analysis of the available NDT methods can be applied in evaluation of bridge condition and in modelling of structure lifetime. ; Framework Programme of European Union - "Sustainable Bridges – Assessment for Future Traffic Demands and Longer Lives" nº ...

Development of cooperation within European Union stimulates intensive integration between all components of European transportation system. One of the important fields of integration is railway bridge engineering, a part of railway transportation system. Proposed classification of degradation mechanisms against their effects as bridge structure defects can be a basis for the unified assessment of bridge condition. Presented terminology and classifications elaborated in the European research project "Sustainable Bridges" can be useful in condition assessment by bridge inspectors as well as in knowledge-based computer tools supporting evaluation procedures in the advanced Bridge Management Systems. Identified relationships between degradation processes and defects can be used for optimization of bridge infrastructure maintenance and ...