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New European Technical Rules for the Assessment and Retrofitting of Existing Structures.

Abstract: 
The consideration of sustainability aspects in the construction sector jointly with considerable economic interests have been the main impulse to include the work item of assessment and retrofitting of existing structures in the Mandate M/515 with a high priority. The new European technical rules will be developed using the existing organization of CEN/TC250. The present report has been worked out in the frame of CEN/TC250/WG2 activities. The report encompasses:  Part I introduces the policy framework and the CEN/TC250 initiative.  Part II is a collation of the different existing National regulations and standards in Europe with regard to existing structures.  Part III gives a prospect for CEN guidance for the assessment and retrofitting of existing structures. Having in mind the stepwise procedure for preparation of CEN Technical Documents, the contents of Part III is broader, covers more aspects, and includes more information than the normative technical recommendations. In particular, key issues are identified that require resolution and a summary of different national perspectives is provided rather than seeking to resolve all difficult technical issues during the first work step. The report presents scientific and technical background intended to stimulate debate and serves as a basis for further work to achieve a harmonized European view on the assessment and retrofitting of existing structures.
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