Title: State of harmonized use of the Eurocodes nationally determined parameters relevant to the definition of climatic and seismic actions
Authors: RAPOSO DE M. DO N. E S. DE SOTTO MAYOR MARIA LUISADIMOVA SILVIAPINTO VIEIRA ARTURATHANASOPOULOU ADAMANTIA
Publisher: Hellenic Society of Earthquake Engineering
Publication Year: 2018
JRC N°: JRC109715
URI: http://www.16ecee.org/
http://publications.jrc.ec.europa.eu/repository/handle/JRC109715
Type: Articles in periodicals and books
Abstract: Nationally Determined Parameters (NDPs) are those parameters that were left open in the Eurocodes to take into account different requirements for safety levels, different design cultures and procedures for structural analysis, as well as differences in geographical, geological or climatic conditions. The objective of the present paper is to analyse the state of harmonized use of the Eurocodes NDPs relevant to the definition of climatic and seismic actions, based on the information uploaded in the European Commission NDPs Database by the Member States (MS) of the European Union (EU) and of the European Free Trade Association (EFTA). The analysis focuses on the harmonized use of NDPs and in particular, on the acceptance of NDPs that are related to the definition of climatic and seismic actions. It is also addressed the acceptance rate of NDPs defined as numeric pre determined parameters, in order to analyse in more detail harmonized patterns and divergences in the NDPs related to the definition of climatic and seismic actions. Finally, seismic zone maps were chosen as an example to illustrate the state of cross-border harmonization of the maps adopted by MS in their National Annexes. The collected maps present dissimilar layouts and reveal discontinuities of the reference ground acceleration levels at countries borderlines.
JRC Directorate:Space, Security and Migration

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