EUROCODE 2 Application to Concrete Highway Bridges

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EUROCODE 2 Application to Concrete Highway Bridges

Size: 8.9 MB | Format: PDF | Publisher: SETRA | Year: 2007 | pages: 294

The guide begins with chapters 1 to 3 that deal with the generalities and basics for dimensioning and verification of projects. It continues with discussions on concrete: shrinkage and creep in chapter 4 and prestress in chapter 5.
The justifications to be carried out at the ultimate limit states are then dealt with in chapter 6 where detail will be found on classic subjects such as verifications on bending, shear stress, torsional stress, crushing stress and fatigue stress. They are followed by a new subject: verification of brittle failure.
The justifications to be carried out on the service limit states are dealt with in chapter 7, where there are new developments concerning control of cracking.
Constructive provisions are the subjects of chapters 8 and 9, the first relating to reinforcement and the second to structural elements.
The last chapter, 10, brings together specific justification methods: verification relative to shear in special cases, the use of connecting rods and tie rods for zones of discontinuity, study of the prestress diffusion, ‘sandwich method’ for plate design and particularly the bending-shear combination. Foundations, treated in a very partial manner by Eurocode 2, should provide useful references for designers.
The guide finally ends with numerous and varied appendices. In effect, it likes to think it’s complete without having been able to deal with everything, and to avoid burdening the reader with an excessive amount of information; much non-essential information and detailed developments of examples of application are to be found in the appendices.
The guide’s first objective is a detailed description of the instructions that are new relative to previous practices. At this point of implementation of the Eurocodes, this development aims particularly to facilitate their understanding and their use. The numerous pages of the guide given over to them are there to give the maximum of explanation. It is however true that for certain instructions it is still too early to be able to well define their field of use, to estimate their importance and to evaluate the results of their application.
A second objective is trying to make the designer feel at home in this new voluminous entity full of multiple and diverse rules. Hence the reason for all this extra information, not only in Eurocode 2 itself, but also when it is necessary and thus useful to other Eurocodes.
And finally, the austere nature of such a work is inevitable. It is also accentuated by the very large number and diversity of the subjects treated. Further, a particular effort has been made to aim for simplicity and in the reasoning, or the logic in the linking of subjects, with the aim of providing a relative ease of reading. The guide will have succeeded in its aims if the designers quickly find it easy to use and practical, and if they refer to it often. This should not, however, excuse them from referring to Eurocode 2.

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