Objective To create an innovative three-dimensional (3D) numerical code for wave propagation in linear and nonlinear earth media, for analysing earthquake and man-made vibratory ground motions in the presence of significant site effects, including foundation interaction domains. - To demonstrate the practical use and reliability of the numerical code through validation with data from local seismic arrays. - To identify new practical classifications of site-dependent ground motion hazard by th einnovative application of artificial intelligence techniques. - To formulate improved criteria for taking site effects into account, and to incorporate them into preliminary, simplified guidelines for practical applications.The objectives will be attained by a combination of analytical tools and software, experimental observations in the field, and laboratory tests, salient among which are: - an original hybrid finite element- spectral appoximation algorithm that constitutes the basis for the 3D numerical code; - large-scale (approx. 5mx5mx2m) cyclic soil-foundation interaction tests with saturated sand at near-failure conditions to be carried out at the ELSA reaction wall facility of JRC (Joint Research Center) Ispra. Theoretical simulations on simplified models using existing codes will be performed; - use of strong and weak motion recordings from local seismometer arrays, including one from Kefallonia Island (Greece), one from Japan (Ohba Ohashi bridge) and the Nya Ullevi Arena in Gothenburg (Sweden); - use of pattern recognition methods developed in artificial intelligence to identify the most relevant site conditions that control the level of risk, and to provide the basis of guidelines for practical applications. The main deliverables of this project will be the software for the 3D numerical code for wave propagation and for the automatic classification of the level of risk at each location of the study area, an experimental database with the results of the soil-foundation interaction tests, and synthetic guidelines for evaluation of site effects. Fields of science natural sciencescomputer and information sciencessoftwarenatural sciencescomputer and information sciencesdatabasesnatural sciencesearth and related environmental sciencesgeologyseismologynatural sciencescomputer and information sciencesartificial intelligencepattern recognition Programme(s) FP4-ENV 2C - Specific programme of research and technological development in the field of environment and climate, 1994-1998 Topic(s) 020302 - Seismic risk Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Consorzio Milano Ricerche EU contribution No data Address Piazza Leonardo da Vinci 32 20133 Milano Italy See on map Total cost No data Participants (5) Sort alphabetically Sort by EU Contribution Expand all Collapse all Centro di Ricerca Sviluppo e Studi Superiori in Sardegna Italy EU contribution No data Address Via Nazario Sauro 10 09123 Cagliari See on map Total cost No data European Communities - Commission of the European Communities Joint Research Centre Italy EU contribution No data Address Via E. Fermi 1 21020 Ispra See on map Total cost No data Kungliga Tekniska Högskolan Sweden EU contribution No data Address 76,Teknikringen 100 44 Stockholm See on map Total cost No data National Technical University of Athens Greece EU contribution No data Address 42,Patission Street 10682 Athens See on map Total cost No data UNIVERSITY OF CAGLIARI Italy EU contribution No data Address Piazza d'Armi 09123 CAGLIARI See on map Total cost No data